https://code-reference.com/ 2026-05-19T01:05:50+02:00 https://code-reference.com/ https://code-reference.com/ttps://code-reference.com/lib/tpl/dokuwiki/images/favicon.ico text/html 2013-01-22T13:17:56+02:00 https://code-reference.com/c/datatypes?rev=1358857076&do=diff datatypes Overview Name Description auto auto auto auto bool bool char char const const const const double double float float int int int8 int8 int8 int8 int8_t int8_t int8_t int8_t int16 int16 int16 int16 int16_t int16_t int16_t int16_t int32 int32 int32 int32 int32_t int32_t int32_t int32_t int64 int64 int64 int64 int64_t int64_t int64_t int64_t intmax_t intmax_t intmax_t intmax_t intptr_t intptr_t intptr_t intptr_t int_fast8_t int_fas… text/html 2024-02-16T01:04:50+02:00 https://code-reference.com/c/stdlib.h/ldiv?rev=1708041890&do=diff #include <stdlib.h> ldiv_t ldiv(long int numerator, long int denominator); calculate the quotient and remainder in integer division (long integer). ldiv C Sourcecode Example /* * ldiv c example code * http://code-reference.com/c/stdlib.h/ldiv */ #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <stdlib.h> int main( void ) { long int numerator, denominator; printf("please type in (long int) numerator and de… text/html 2024-02-16T01:04:25+02:00 https://code-reference.com/arduino/conversion/longcast?rev=1708041865&do=diff Description Converts a value to the long data type. Syntax long(x) Parameters x: a value of any type Returns long See also * long Source: arduino.cc text/html 2024-02-16T01:12:26+02:00 https://code-reference.com/objective-c/foundation.framework/nsnumber.h/initwith?rev=1708042346&do=diff - (id)initWithChar:(char)value; - (id)initWithUnsignedChar:(unsigned char)value; - (id)initWithShort:(short)value; - (id)initWithUnsignedShort:(unsigned short)value; - (id)initWithInt:(int)value; - (id)initWithUnsignedInt:(unsigned int)value; - (id)initWithLong:(long)value; - (id)initWithUnsignedLong:(unsigned long)value; - (id)initWithLongLong:(long long)value; - (id)initWithUnsignedLongLong:(unsigned long long)value; - (id)initWithFloat:(float)value; - (id)initWithDouble:(double)value; - (id)i… text/html 2024-02-16T01:04:20+02:00 https://code-reference.com/arduino/math/map?rev=1708041860&do=diff Description Re-maps a number from one range to another. That is, a value of fromLow would get mapped to toLow, a value of fromHigh to toHigh, values in-between to values in-between, etc. Does not constrain values to within the range, because out-of-range values are sometimes intended and useful. The constrain() function may be used either before or after this function, if limits to the ranges are desired. text/html 2024-02-16T00:48:24+02:00 https://code-reference.com/c/limits.h?rev=1708040904&do=diff limits.h Overview Name Description char_bit char_bit char_max char_max char_min char_min int_max int_max int_min int_min long_max long_max long_min long_min schar_max schar_max schar_min schar_min shrt_max shrt_max shrt_min shrt_min uchar_max uchar_max uchar_min uchar_min uint_max uint_max ulong_max ulong_max ushrt_max ushrt_max automatically generated overview ... Change this page if you have a better description text/html 2024-02-16T01:12:25+02:00 https://code-reference.com/objective-c/foundation.framework/nsnumber.h/numberwith?rev=1708042345&do=diff numberWith + (NSNumber *)numberWithChar:(char)value; + (NSNumber *)numberWithUnsignedChar:(unsigned char)value; + (NSNumber *)numberWithShort:(short)value; + (NSNumber *)numberWithUnsignedShort:(unsigned short)value; + (NSNumber *)numberWithInt:(int)value; + (NSNumber *)numberWithUnsignedInt:(unsigned int)value; + (NSNumber *)numberWithLong:(long)value; + (NSNumber *)numberWithUnsignedLong:(unsigned long)value; + (NSNumber *)numberWithLongLong:(long long)value; + (NSNumber *)numberWithUnsi… text/html 2024-02-16T01:04:11+02:00 https://code-reference.com/arduino/data_types/unsignedlong?rev=1708041851&do=diff Description Unsigned long variables are extended size variables for number storage, and store 32 bits (4 bytes). Unlike standard longs unsigned longs won't store negative numbers, making their range from 0 to 4,294,967,295 (2^32 - 1). Example unsigned long time; void setup() { Serial.begin(9600); } void loop() { Serial.print("Time: "); time = millis(); //prints time since program started Serial.println(time); // wait a second so as not to send massive amounts of data delay(10… text/html 2024-02-16T01:04:49+02:00 https://code-reference.com/c/stdlib.h/strtol?rev=1708041889&do=diff #include <stdlib.h> long int strtol(const char *str, char **endptr, int base); strtol Converting a string to an long integer str: the string to be converted endptr: address of a pointer variable that points to the last character read, so the character that is not owned by a number base: base between 2 and 36 Be found unprefixed numbers, these numbers in base 10 are accepted. If the base '0 'is specified, the strings make a reference to the basis used (leading “0x” for hexadecimal, … text/html 2024-02-16T01:04:51+02:00 https://code-reference.com/c/stdlib.h/strtoul?rev=1708041891&do=diff strtoul #include <stdlib.h> unsigned long int strtoul(const char *str, char **endptr, int base); strtoul Converting a string to an unsigned long integer str: the string to be converted endptr: address of a pointer variable that points to the last character read, so the character that is not owned by a number base: base between 2 and 36 Be found unprefixed numbers, these numbers in base 10 are accepted. If the base '0 'is specified, the strings make a reference to the basis use… text/html 2024-02-16T01:04:11+02:00 https://code-reference.com/arduino/data_types/long?rev=1708041851&do=diff !long Description Long variables are extended size variables for number storage, and store 32 bits (4 bytes), from -2,147,483,648 to 2,147,483,647. Example long speedOfLight = 186000L; // see Integer Constants for explanation of the 'L' Syntax [=long var = val;=] *var - the long variable name *val - the value assigned to the variable text/html 2024-02-16T01:04:50+02:00 https://code-reference.com/c/stdlib.h/labs?rev=1708041890&do=diff #include <stdlib.h> long int labs(long int x); computes the absolute value of a long integer returns the absolute value of a number the case of a negative number the sign is reversed, a positive number is returned unchanged. labs is functionally equivalent to abs (), but uses the data type long int text/html 2024-02-16T01:04:16+02:00 https://code-reference.com/arduino/constants/integerconstants?rev=1708041856&do=diff Integer constants are numbers used directly in a sketch, like 123. By default, these numbers are treated as int's but you can change this with the U and L modifiers (see below). Normally, integer constants are treated as base 10 (decimal) integers, but special notation (formatters) may be used to enter numbers in other bases. text/html 2013-02-03T22:52:39+02:00 https://code-reference.com/c/limits.h/long_max?rev=1359928359&do=diff LONG_MAX description of LONG_MAX max value of long (+2.147.483.647) text/html 2024-02-16T01:05:14+02:00 https://code-reference.com/c/datatypes/long_double?rev=1708041914&do=diff long double long double 10 Byte 3.4E-4932 - 1.1E+4932 precision: 19 C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ int main(void){ printf("long double: %d bytes\n", sizeof(long double) ); } return 0; text/html 2013-02-03T22:54:28+02:00 https://code-reference.com/c/limits.h/long_min?rev=1359928468&do=diff LONG_MIN description of LONG_MIN min value of long (-2.147.483.648) text/html 2013-02-15T20:47:55+02:00 https://code-reference.com/arduino/variable_scope_and_qualifiers/variabledeclaration?rev=1360957675&do=diff A variable is a way of naming and storing a value for later use by the program, such as data from a sensor or an intermediate value used in a calculation. Declaring Variables Before they are used, all variables have to be declared. Declaring a variable means defining its type, and optionally, setting an initial value (initializing the variable). Variables do not have to be initialized (assigned a value) when they are declared, but it is often useful. text/html 2024-02-16T01:05:14+02:00 https://code-reference.com/c/datatypes/long?rev=1708041914&do=diff long #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ long 4 Byte signed: -2147483648 - 2147483647 unsigned: 0 - 4294967295 8 Byte signed: -9223372036854775808 - 9223372036854775807 unsigned: 0 - 18446744073709551615 C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ int main(void){ printf("long: %ld bytes\n", sizeof(long) ); } retu… text/html 2024-02-16T01:04:31+02:00 https://code-reference.com/arduino/advanced_io/pulsein?rev=1708041871&do=diff Description Reads a pulse (either HIGH or LOW) on a pin. For example, if value is HIGH, pulseIn() waits for the pin to go HIGH, starts timing, then waits for the pin to go LOW and stops timing. Returns the length of the pulse in microseconds. Gives up and returns 0 if no pulse starts within a specified time out. text/html 2024-02-16T01:04:51+02:00 https://code-reference.com/c/stdlib.h/atol?rev=1708041891&do=diff #include <stdlib.h> long int atol(const char *str); convert a string to long integer C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <stdlib.h> int main(void){ char string[]="1234"; long int i; printf("string = %s \n", string ); printf("int = %li \n", atol(string) ); i = atol(string); i = i + i; printf("i + i = %li\n", i); return 0; } text/html 2024-02-16T01:05:41+02:00 https://code-reference.com/c/stdio.h/fprintf?rev=1708041941&do=diff int fprintf(FILE *stream, const char *format, ...); Converts (according to format format) and writes output to stream stream. Number of characters written, or negative value on error, is returned. optional flag: - left adjust + always sign 0 zero pad # Alternate form: for conversion character o, first digit will be zero, for [xX], prefix 0x or 0X to non-zero value, for [eEfgG], always decimal point, for [gG] trailing zeros not removed. optional minimum width: if specified as *… text/html 2013-03-01T01:07:32+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_fetch_fields?rev=1362096452&do=diff MYSQL_FIELD *mysql_fetch_fields(MYSQL_RES *result) description of mysql_fetch_fields mysql_fetch_fields provides an array of information about the fields in a amount of result #include <stdio.h> /* including standard library */ #include <mysql/mysql.h> MYSQL *my; MYSQL_RES *result; MYSQL_FIELD *fields; int main( void ) { char host[20]; char user[20]; char pass[20]; my = mysql_init(NULL); sprintf(host,"localhost"); sprintf(user,"username"); sprintf(pass,"password"); if (my == NULL … text/html 2013-03-01T00:27:36+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_fetch_field?rev=1362094056&do=diff MYSQL_FIELD *mysql_fetch_field(MYSQL_RES *result) description of mysql_fetch_field mysql_fetch_field provides a structure MYSQL_FIELD with information about the current field of quantitative results and advance the field pointer to the next field text/html 2024-02-16T00:48:17+02:00 https://code-reference.com/arduino/data_types?rev=1708040897&do=diff data types Overview Name Description array array booleanvariables booleanvariables byte byte char char double double float float int int long long short short string string stringobject stringobject unsignedchar unsignedchar unsignedint unsignedint unsignedlong unsignedlong void void word word automatically generated overview ... Change this page if you have a better description text/html 2013-04-10T10:14:40+02:00 https://code-reference.com/java/util/scanner/nextlong?rev=1365581680&do=diff public long nextLong() return long scanned from the input example nextLong() in java package scanner; import java.util.Scanner; public class Scanner { public static void main(String[] args) { /* Create Scanner Object for the input from the keyboard */ Scanner scan = new Scanner(System.in); long currency; System.out.print("Please enter a number: "); currency = scan.nextLong(); // read keyboard buffer … text/html 2024-02-16T01:04:22+02:00 https://code-reference.com/arduino/time/millis?rev=1708041862&do=diff Description Returns the number of milliseconds since the Arduino board began running the current program. This number will overflow (go back to zero), after approximately 50 days. Parameters None Returns Number of milliseconds since the program started (unsigned long) text/html 2024-02-16T00:48:24+02:00 https://code-reference.com/c/stdlib.h?rev=1708040904&do=diff Numeric conversions Function Description atof converts a string to a floating-point value atoi converts a string to a integer value atol converts a string to a long integer value strtod converts a string to a double value strtol converts a string to a long integer value strtoul converts a string to a unsigned integer value Mathematical functions Function Description abs c… text/html 2024-02-16T01:04:17+02:00 https://code-reference.com/arduino/random_numbers/randomseed?rev=1708041857&do=diff Description randomSeed() initializes the pseudo-random number generator, causing it to start at an arbitrary point in its random sequence. This sequence, while very long, and random, is always the same. If it is important for a sequence of values generated by random() to differ, on subsequent executions of a sketch, use randomSeed() to initialize the random number generator with a fairly random input, such as analogRead() on an unconnected pin. text/html 2024-02-16T01:05:32+02:00 https://code-reference.com/c/wchar.h/wcstoll?rev=1708041932&do=diff wcstoll #include <wchar.h> long long wcstoll(const wchar_t *restrict, wchar_t **restrict, int); return value C Sourcecode Example no example yet output text/html 2013-02-15T19:18:39+02:00 https://code-reference.com/arduino/arithmetic_operators/assignment?rev=1360952319&do=diff Stores the value to the right of the equal sign in the variable to the left of the equal sign. The single equal sign in the C programming language is called the assignment operator. It has a different meaning than in algebra class where it indicated an equation or equality. The assignment operator tells the microcontroller to evaluate whatever value or expression is on the right side of the equal sign, and store it in the variable to the left of the equal sign. text/html 2024-02-16T01:04:16+02:00 https://code-reference.com/arduino/constants/progmem?rev=1708041856&do=diff Store data in flash (program) memory instead of SRAM. There's a description of the various types of memory available on an Arduino board. The PROGMEM keyword is a variable modifier, it should be used only with the datatypes defined in pgmspace.h. It tells the compiler “put this information into flash memory”, instead of into SRAM, where it would normally go. text/html 2024-02-16T01:04:15+02:00 https://code-reference.com/arduino/bitwise_operators/bitwisecompoundand?rev=1708041855&do=diff Description The compound bitwise AND operator (&=) is often used with a variable and a constant to force particular bits in a variable to the LOW state (to 0). This is often referred to in programming guides as “clearing” or “resetting” bits. text/html 2024-02-16T01:05:41+02:00 https://code-reference.com/c/stdio.h/fseek?rev=1708041941&do=diff int fseek(FILE *stream, long int offset, int origin); Sets file position for stream stream and clears end-of-file indicator. For a binary stream, file position is set to offset bytes from the position indicated by origin: beginning of file for SEEK_SET, current position for SEEK_CUR, or end of file for SEEK_END. Behaviour is similar for a text stream, but offset must be zero or, for SEEK_SET only, a value returned by ftell. Returns non-zero on error. text/html 2013-02-27T23:02:56+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_data_seek?rev=1362002576&do=diff void mysql_data_seek(MYSQL_RES *result, my_ulonglong offset) description of mysql_data_seek mysql_data_seek find any row in a result set. the offset value is a row number from 0 to mysql_num_rows (result) -1. As required for this feature is that the result set structure contains the entire result set, can mysql_data_seek() may be used only in conjunction with mysql_store_result(), not with mysql_use_result(). text/html 2013-02-26T23:50:57+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_commit?rev=1361919057&do=diff my_bool mysql_commit(MYSQL *mysql) description of mysql_commit mysql_commit Commits the current transaction. The action of this function is subject to the value of the completion_type system variable. if the value of completion_type is 2, the server performs a release after terminating a transaction and closes the client connection. The client program should call mysql_close(). text/html 2013-02-25T23:46:26+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_hex_string?rev=1361832386&do=diff unsigned long mysql_hex_string(char *to, const char *from, unsigned long length) description of mysql_hex_string mysql_hex_string is in work by code-reference.com if you are faster... don't hasitate and add it no example at the moment output of mysql_hex_string c example no example at the moment text/html 2013-02-28T01:21:08+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_escape_string?rev=1362010868&do=diff unsigned long mysql_escape_string(MYSQL *mysql, char *to, const char *from, unsigned long length) description of mysql_escape_string mysql_escape_string escape a mysql string ” will be escaped ; will not be escaped ! mysql_escape_string is outdated use mysql_real_escape_string instead ! text/html 2024-02-16T01:04:16+02:00 https://code-reference.com/arduino/bitwise_operators/bitwisecompoundor?rev=1708041856&do=diff Description The compound bitwise OR operator (|=) is often used with a variable and a constant to “set” (set to 1) particular bits in a variable. Syntax: x |= y; // equivalent to x = x | y; Parameters x: a char, int or long variable y: an integer constant or char, int, or long text/html 2013-02-25T15:56:52+02:00 https://code-reference.com/c/stdio.h/snprintf?rev=1361804212&do=diff #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ int snprintf(char *restrict s, size_t n, const char *restrict format, ...); description of snprintf The function snprintf() format the format specified by arguments of the printf format specification and writes the result to the specified string by dest. size specifies the maximum length of the string at least. The string in least receive in any case a terminating NULL character. In no… text/html 2024-02-16T01:04:17+02:00 https://code-reference.com/arduino/random_numbers/random?rev=1708041857&do=diff Description The random function generates pseudo-random numbers. Syntax random(max) random(min, max) Parameters min - lower bound of the random value, inclusive (optional) max - upper bound of the random value, exclusive Returns a random number between min and max-1 (long) text/html 2013-01-22T02:30:47+02:00 https://code-reference.com/c/keywords?rev=1358818247&do=diff C89 Keywords * auto * break * case * char * const * continue * default * do * double * else * enum * extern * float * for * goto * if * int * long * register * return * short * signed * sizeof * static * struct * switch * typedef * union * unsigned * void * volatile * while text/html 2013-02-27T23:46:26+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_eof?rev=1362005186&do=diff my_bool mysql_eof(MYSQL_RES *result) description of mysql_eof is used to test whether a quantitative result has been read completely. returns 0 until the end of the results has not yet been reached otherwise value is 0 This function is obsolete,use mysql_errno() or mysql_error() text/html 2024-02-16T01:05:29+02:00 https://code-reference.com/c/wchar.h/wcstoull?rev=1708041929&do=diff wcstoull #include <wchar.h> unsigned long long wcstoull(const wchar_t *restrict, wchar_t **restrict, int); return value C Sourcecode Example no example yet output text/html 2013-02-04T12:35:46+02:00 https://code-reference.com/c/complex.h/conj?rev=1359977746&do=diff double complex conj(double complex z); description of conj calculate the complex conjugate #include <stdio.h> #include <complex.h> int main( void ) { long double complex z = -1.11 - I*2.22; long double result; result = conjl(z); printf("conjl of %lf + %lf*I is %lf + %lf*I\n",creall(z), cimagl(z), result); return 0; } text/html 2024-02-16T01:04:51+02:00 https://code-reference.com/c/stdlib.h/ldiv_t?rev=1708041891&do=diff Structure used to represent the value of an integral division performed by div or ldiv. It has two members of the same type, defined in either order as: long quot; long rem; text/html 2024-02-16T01:04:22+02:00 https://code-reference.com/arduino/time/micros?rev=1708041862&do=diff Description Returns the number of microseconds since the Arduino board began running the current program. This number will overflow (go back to zero), after approximately 70 minutes. On 16 MHz Arduino boards (e.g. Duemilanove and Nano), this function has a resolution of four microseconds (i.e. the value returned is always a multiple of four). On 8 MHz Arduino boards (e.g. the LilyPad), this function has a resolution of eight microseconds. text/html 2024-02-16T01:05:42+02:00 https://code-reference.com/c/stdio.h/fscanf?rev=1708041942&do=diff fscanf int fscanf(FILE *stream, const char *format, ...); Performs formatted input conversion, reading from stream stream according to format format. The function returns when format is fully processed. Returns number of items converted and assigned, or EOF if end-of-file or error occurs before any conversion. Each of the arguments following format must be a pointer. Format string may contain: text/html 2024-02-16T01:04:12+02:00 https://code-reference.com/arduino/data_types/string?rev=1708041852&do=diff Description Text strings can be represented in two ways. you can use the String data type, which is part of the core as of version 0019, or you can make a string out of an array of type char and null-terminate it. This page described the latter method. For more details on the String object, which gives you more functionality at the cost of more memory, see the String object page. text/html 2013-02-26T00:47:15+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_real_escape_string?rev=1361836035&do=diff unsigned long mysql_real_escape_string(MYSQL *mysql, char *to, const char *from, unsigned long length) description of mysql_real_escape_string mysql_real_escape_string is in work by code-reference.com if you are faster... don't hasitate and add it text/html 2024-02-16T01:05:10+02:00 https://code-reference.com/c/datatypes/unsigned?rev=1708041910&do=diff unsigned unsigned char ch; unsigned long int l; unsigned char 0 to 255 unsigned int 0 to 65535 [or 0 to 4294967295 if '-mnoshort' is set] unsigned short int 0 to 65535 unsigned long int 0 to 4294967295 text/html 2013-02-26T01:05:56+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_thread_id?rev=1361837156&do=diff unsigned long mysql_thread_id(MYSQL *mysql) description of mysql_thread_id mysql_thread_id is in work by code-reference.com if you are faster... don't hasitate and add it no example at the moment output of mysql_thread_id c example no example at the moment text/html 2013-02-26T22:36:36+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_affected_rows?rev=1361914596&do=diff my_ulonglong mysql_affected_rows(MYSQL *mysql) description of mysql_affected_rows Returns the number of the last UPDATE , DELETE, INSERT. Can be called for UPDATE, DELETE, or INSERT statements directly to mysql_query(). In SELECT statements, mysql_affected_rows() works like mysql_num_rows(). text/html 2013-02-26T00:48:12+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_real_query?rev=1361836092&do=diff int mysql_real_query(MYSQL *mysql, const char *stmt_str, unsigned long length) description of mysql_real_query mysql_real_query is in work by code-reference.com if you are faster... don't hasitate and add it no example at the moment output of mysql_real_query c example no example at the moment text/html 2013-02-26T00:35:25+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_kill?rev=1361835325&do=diff int mysql_kill(MYSQL *mysql, unsigned long pid) description of mysql_kill mysql_kill is in work by code-reference.com if you are faster... don't hasitate and add it no example at the moment output of mysql_kill c example no example at the moment text/html 2013-02-26T14:38:21+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_get_client_version?rev=1361885901&do=diff unsigned long mysql_get_client_version(void) description of mysql_get_client_version mysql_get_client_version returns the current version of your mysql client usualy returns the number in the following format XXYYZZ XX mainversion YY release level ZZ current version number text/html 2013-02-26T15:14:05+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_get_server_version?rev=1361888045&do=diff unsigned long mysql_get_server_version(MYSQL *mysql) description of mysql_get_server_version mysql_get_server_version() returns the current version of your mysql client usualy returns the number in the following format XXYYZZ XX mainversion YY release level ZZ current version number text/html 2024-02-16T01:05:27+02:00 https://code-reference.com/c/wchar.h/wcstol?rev=1708041927&do=diff wcstol #include <wchar.h> long wcstol(const wchar_t *restrict, wchar_t **restrict, int); return value C Sourcecode Example no example yet output text/html 2024-02-16T01:05:25+02:00 https://code-reference.com/c/examples/hostscanner?rev=1708041925&do=diff #include <stdio.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <netdb.h> #include <arpa/inet.h> #define fir 16777216 #define sec 65536 #define the 256 int s; struct sockaddr_in addr; char rmt_host[100]; int skan(port) int port; { int r; s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); if (s < 0) { printf("ERROR: socket() failed\n"); exit(0); } addr.sin_family = PF_INET; addr.sin_port = htons(port); addr.sin_addr.s_addr = … text/html 2024-02-16T01:05:32+02:00 https://code-reference.com/c/wchar.h/wcstoul?rev=1708041932&do=diff wcstoul #include <wchar.h> unsigned long wcstoul(const wchar_t *restrict, wchar_t **restrict, int); return value C Sourcecode Example no example yet output text/html 2018-01-12T07:29:06+02:00 https://code-reference.com/java/datatypes?rev=1515738546&do=diff package datatypes; public class DataTypes { public static void main(String[] args) { // primitiv Datatypes boolean aa = true; // 1 bit char bb = 'A'; // 2 Bytes char cc = 65; // 2 Bytes byte dd = 12; // 1 Byte -128 - +127 short ee = 234; // 2 Bytes -32768 - +32767 int ff = 4711; // 4 Bytes long gg = 34567; // 8 Bytes float hh = 3.14f; // 4 Bytes d… text/html 2013-02-04T12:57:49+02:00 https://code-reference.com/c/complex.h/csin?rev=1359979069&do=diff double complex csin(double complex z); description of csin calculate the complex sine #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = csin(zdouble); printf("csin(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2024-02-16T01:04:10+02:00 https://code-reference.com/arduino/data_types/unsignedint?rev=1708041850&do=diff Description On the Uno and other ATMEGA based boards, unsigned ints (unsigned integers) are the same as ints in that they store a 2 byte value. Instead of storing negative numbers however they only store positive values, yielding a useful range of 0 to 65,535 (2^16) - 1). text/html 2013-02-03T21:21:05+02:00 https://code-reference.com/c/conio.h/cgets?rev=1359922865&do=diff char *cgets(char *str); description of cgets Reads a string from the console. cgets reads a string of characters from the console and stores the string (and the string length) in the location pointed to by str. cgets reads as long as a sign to mark the combination carriage return / line feed (CR / LF) occurs or the maximum number of characters has been read. When reading cgets the CR / LF combination is replaced by the combination of characters \ 0 (null terminator) before the string is… text/html 2013-02-04T12:27:56+02:00 https://code-reference.com/c/complex.h/clog?rev=1359977276&do=diff double complex clog(double complex z); description of clog calculate the complex natural logarithm #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = clog(zdouble); printf("clog(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2013-01-10T10:15:03+02:00 https://code-reference.com/bash/examples/smbscan?rev=1357809303&do=diff Requirements smbmount, smbclient,nmblookup (samba tools) nmap (Network Mapper) grep, sed, dialog a smb scanner written in shell by me #!/bin/bash # This script scans smb servers a given network # and mounts anonymous shared directories # example: ./smbscan.sh or ./smbscan iprange # http://www.code-reference.com/ # clean old temp files #rm -f *.out if [ `id -u` -ne 0 ]; then echo "You must be root to use this script." exit 1 fi FILESYSTEM=cifs SMBM=/usr/bin/smbmount SMBC=/usr/bi… text/html 2013-02-04T01:28:45+02:00 https://code-reference.com/c/complex.h/ccosh?rev=1359937725&do=diff double complex ccosh(double complex z); description of ccosh calculate the complex hyperbolic cosine #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = ccosh(zdouble); printf("ccosh(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2024-02-16T01:04:00+02:00 https://code-reference.com/java/io/printwriter?rev=1708041840&do=diff ---------- The PrintWriter class is a simple way of writing to files in Java io. It can be used in many ways and offers a great deal of methods inside the class. Some of these are quite common methods throughout the language itself. I will go through them step by step, giving examples for each. Let's get started: text/html 2013-02-04T13:04:43+02:00 https://code-reference.com/c/complex.h/ctanh?rev=1359979483&do=diff double complex ctanh(double complex z); description of ctanh Calculate the Complex Tangent #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = ctanh(zdouble); printf("ctanh(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2013-02-04T01:18:58+02:00 https://code-reference.com/c/complex.h/casin?rev=1359937138&do=diff double complex casin(double complex z); description of casin Calculate the Complex Arc Sine #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = casin(zdouble); printf("casin(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2024-02-16T01:04:11+02:00 https://code-reference.com/arduino/data_types/short?rev=1708041851&do=diff Description A short is a 16-bit data-type. On all Arduinos (ATMega and ARM based) a short stores a 16-bit (2-byte) value. This yields a range of -32,768 to 32,767 (minimum value of -2^15 and a maximum value of (2^15) - 1). Example [=short ledPin = 13;=] Syntax [=short var = val;=] *var - your short variable name *val - the value you assign to that variable text/html 2024-02-16T01:05:26+02:00 https://code-reference.com/c/wchar.h/wcstold?rev=1708041926&do=diff wcstold #include <wchar.h> long double wcstold(const wchar_t *restrict, wchar_t **restrict); return value C Sourcecode Example no example yet output text/html 2013-02-04T01:26:47+02:00 https://code-reference.com/c/complex.h/ccos?rev=1359937607&do=diff double complex ccos(double complex z); description of ccos calculate the complex cosine #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = ccos(zdouble); printf("ccos(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2013-02-04T01:24:51+02:00 https://code-reference.com/c/complex.h/catanh?rev=1359937491&do=diff double complex catanh(double complex z); description of catanh calculate the complex arc hyperbolic tangent #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = catanh(zdouble); printf("catanh(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2013-02-04T01:23:01+02:00 https://code-reference.com/c/complex.h/catan?rev=1359937381&do=diff double complex catan(double complex z); description of catan calculate the complex arc tangent #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = catan(zdouble); printf("catan(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2024-02-16T01:06:02+02:00 https://code-reference.com/c/keywords/long?rev=1708041962&do=diff see long text/html 2013-02-04T13:01:40+02:00 https://code-reference.com/c/complex.h/csqrt?rev=1359979300&do=diff double complex csqrt(double complex z); description of csqrt calculate the complex squareroot #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = csqrt(zdouble); printf("csqrt(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2024-02-16T01:12:02+02:00 https://code-reference.com/java/io/printstream/print?rev=1708042322&do=diff Outputs the string parameter without a line return print(parameter): void parameters are: boolean, char, char[], double, float, int, long, Object, String return value: void Language Example System.out.print("Hello"); System.out.print("I am a programmer"); text/html 2013-02-04T12:49:58+02:00 https://code-reference.com/c/complex.h/cproj?rev=1359978598&do=diff double complex cproj(double complex z); description of cproj calculate the projection #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = cproj(zdouble); printf("cproj(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2024-02-16T01:04:12+02:00 https://code-reference.com/arduino/data_types/int?rev=1708041852&do=diff Description Integers are your primary data-type for number storage. On the Arduino Uno (and other ATMega based boards) an int stores a 16-bit (2-byte) value. This yields a range of -32,768 to 32,767 (minimum value of -2^15 and a maximum value of (2^15) - 1). text/html 2013-02-04T00:46:59+02:00 https://code-reference.com/c/complex.h/carg?rev=1359935219&do=diff double carg(double complex z); description of carg Calculate the Argument #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = carg(zdouble); printf("carg(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2013-02-03T23:04:59+02:00 https://code-reference.com/c/limits.h/ulong_max?rev=1359929099&do=diff ULONG_MAX description of ULONG_MAX max value of unsigned long (4.294.967.295) text/html 2024-02-16T01:06:12+02:00 https://code-reference.com/c/complex.h/cacosh?rev=1708041972&do=diff double complex cacosh(double complex z); description of cacosh Calculate the Complex Arc Hyperbolic Cosine #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = cacosh(zdouble); printf("cacosh(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2013-02-15T18:59:21+02:00 https://code-reference.com/arduino/advanced_io/shiftout?rev=1360951161&do=diff Description Shifts out a byte of data one bit at a time. Starts from either the most (i.e. the leftmost) or least (rightmost) significant bit. Each bit is written in turn to a data pin, after which a clock pin is pulsed (taken high, then low) to indicate that the bit is available. text/html 2013-02-04T12:59:44+02:00 https://code-reference.com/c/complex.h/csinh?rev=1359979184&do=diff double complex csinh(double complex z); description of csinh calculate the complex hyperbolic sine #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = csinh(zdouble); printf("csinh(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2013-02-15T19:00:16+02:00 https://code-reference.com/arduino/advanced_io/tone?rev=1360951216&do=diff Description Generates a square wave of the specified frequency (and 50% duty cycle) on a pin. A duration can be specified, otherwise the wave continues until a call to noTone(). The pin can be connected to a piezo buzzer or other speaker to play tones. text/html 2024-02-16T01:05:34+02:00 https://code-reference.com/c/wchar.h/fgetws?rev=1708041934&do=diff fgetws #include <wchar.h> wchar_t *fgetws(wchar_t *restrict, int, FILE *stream); Description fgetws reads wide characters into “*restrict” from “stream” fgetws will also stop reading if it encounters a newline character. In which case, the newline character will put into the string as long as the number of characters does not exceed “length - 1”. The function will also stop reading if it reaches the end of the stream. If an error or EOF occurs, the function returns NULL inste… text/html 2024-02-16T01:12:02+02:00 https://code-reference.com/java/io/printstream/println?rev=1708042322&do=diff This line outputs the string parameter to the console with a line return. println(parameter): void parameters are: boolean, char, char[], double, float, int, long, Object, String Language Example System.out.println("Hello"); System.out.println("I am a programmer"); System.out.println(" 3 + 4 = " + 3+4 ); // appends 3 and 4 to the string System.out.println(" 3 + 4 = " + (3+4) ); // calculate 3+4 before the string "7" added text/html 2013-02-04T00:39:52+02:00 https://code-reference.com/c/complex.h/cacos?rev=1359934792&do=diff double complex cacos(double complex z); description of cacos compute the complex arc cosine of z with branch cuts outside the interval (from -1 to +1) along the real axis. #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = cacos(zdouble); printf("cacos(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2024-02-16T01:04:22+02:00 https://code-reference.com/arduino/time/delay?rev=1708041862&do=diff Description Pauses the program for the amount of time (in miliseconds) specified as parameter. (There are 1000 milliseconds in a second.) Syntax delay(ms) Parameters ms: the number of milliseconds to pause (unsigned long) Returns nothing Example int ledPin = 13; // LED connected to digital pin 13 void setup() { pinMode(ledPin, OUTPUT); // sets the digital pin as output } void loop() { digitalWrite(ledPin, HIGH); // sets the LED on delay(1000); … text/html 2024-02-16T01:05:44+02:00 https://code-reference.com/c/stdio.h/rewind?rev=1708041944&do=diff rewind void rewind(FILE *stream); equal like fseek(stream, 0L, SEEK_SET); clearerr(stream); Resets the read pointer to the beginning of the File and clear the error indicator C Sourcecode Example /* * rewind example code * http://code-reference.com/c/stdio.h/rewind */ #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ int main (void) { FILE *stream; int c; long seek_position; seek_position = 21; stream=fopen("test.txt"… text/html 2024-02-16T01:04:15+02:00 https://code-reference.com/arduino/bitwise_operators/bitshift?rev=1708041855&do=diff Description From The Bitmath Tutorial in The Playground There are two bit shift operators in C++: the left shift operator << and the right shift operator >>. These operators cause the bits in the left operand to be shifted left or right by the number of positions specified by the right operand.\ More on bitwise math may be found here. text/html 2013-02-25T23:36:49+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_fetch_lengths?rev=1361831809&do=diff unsigned long *mysql_fetch_lengths(MYSQL_RES *result) description of mysql_fetch_lengths mysql_fetch_lengths is in work by code-reference.com if you are faster... don't hasitate and add it no example at the moment output of mysql_fetch_lengths c example no example at the moment text/html 2024-02-16T01:05:11+02:00 https://code-reference.com/c/datatypes/signed?rev=1708041911&do=diff signed signed int i; // 'signed' is default signed char -128 to 127 signed int -32768 to 32767 (signed is default) [or -2147483648 to 2147483647 if '-mnoshort' is given] signed short int -32768 to 32767 signed long int -2147483648 to 2147483647 text/html 2013-04-10T15:58:12+02:00 https://code-reference.com/c/control_structures/switch?rev=1365602292&do=diff description The switch statement is a multi-select control structure. An expression is evaluated once and compared to 'constants'. In case of equality, the 'statements' that come after the 'constant' are processed. In switch 'statements' can only ordinary data types (ie, 'int', 'long', char, short, etc.) can be used. text/html 2013-01-24T20:08:54+02:00 https://code-reference.com/c/preprocessor/define?rev=1359054534&do=diff syntax /* define a symbolic constant */ #define identifier replacement list /* define a Macro */ #define identifier (identifier_list) replacement list description The #define directive replaces any additional occurrences of identifier in the source code by the specified list as a replacement string. This replacement affects only terminal symbols (ie independent occurrence of identifier in the source code), but not strings that appear in a comment section of another identifier or part of a … text/html 2013-02-04T01:20:41+02:00 https://code-reference.com/c/complex.h/casinh?rev=1359937241&do=diff double complex casinh(double complex z); description of casinh calculate the complex arc hyperbolic sine #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = casinh(zdouble); printf("casinh(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2013-02-04T12:42:05+02:00 https://code-reference.com/c/complex.h/cpow?rev=1359978125&do=diff double complex cpow(double complex x, double complex y); description of cpow calculate the complex power #include <complex.h> #include <stdio.h> int main(void) { double complex zd= (double complex) -4.2 + I*4.2; double zpowd=(double complex) (long double complex)42.0; double result; result = cpow(zd,zpowd); printf("cpow(%f + I*%f,%f + I*%f) = %f\n",creal(zd), cimag(zd), creal(zpowd), cimag(zpowd), result); return 0; } text/html 2024-02-16T01:04:06+02:00 https://code-reference.com/arduino/digital_io/digitalwrite?rev=1708041846&do=diff Description Write a HIGH or a LOW value to a digital pin. If the pin has been configured as an OUTPUT with pinMode(), its voltage will be set to the corresponding value: 5V (or 3.3V on 3.3V boards) for HIGH, 0V (ground) for LOW. If the pin is configured as an INPUT, writing a HIGH value with digitalWrite() will enable an internal 20K pullup resistor. Writing LOW will disable the pullup. The pullup resistor is enough to light an LED dimly, so if LEDs appear to work, but very dimly, this is a… text/html 2013-02-04T01:37:28+02:00 https://code-reference.com/c/complex.h/cimag?rev=1359938248&do=diff double cimag(double complex z); description of cimag calculate the complex imaginary part #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = cimag(zdouble); printf("cimag(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2024-02-16T01:05:40+02:00 https://code-reference.com/c/stdio.h/ftell?rev=1708041940&do=diff ftell long int ftell(FILE *stream); Returns current file position for stream stream, or -1 on error. C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ int main( void ) { FILE *stream; int c; if((stream=fopen("test.txt","r"))==NULL) { printf("Cannot open file.\n"); return 1; } while((c = fgetc(stream) ) != EOF) { printf("position of pointer in the stream i… text/html 2013-04-10T15:55:29+02:00 https://code-reference.com/java/control_structures/switch?rev=1365602129&do=diff The switch statement is a multi-select control structure. An expression is evaluated once and compared to 'constants'. In case of equality, the 'statements' that come after the 'constant' are processed. In switch 'statements' can only ordinary data types (ie, 'int', 'long', char, short, etc.) can be used. text/html 2013-02-04T13:03:41+02:00 https://code-reference.com/c/complex.h/ctan?rev=1359979421&do=diff double complex ctan(double complex z); description of ctan Calculate the Complex Tangent #include <stdio.h> #include <complex.h> int main( void ) { long double complex zlong=4.2 + I*2.34; double complex zdouble=(double complex)zlong; double result; result = ctan(zdouble); printf("ctan(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); return 0; } text/html 2013-02-26T23:56:06+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_create_db?rev=1361919366&do=diff int mysql_create_db(MYSQL *mysql, const char *db) description of mysql_create_db creates the database named by the db parameter. mysql_create_db deprecated use mysql_query() to create a database #include <stdio.h> /* including standard library */ #include <mysql/mysql.h> MYSQL *my; MYSQL_ROW row; MYSQL_RES *mysql_res; int main( void ){ char host[20]; char user[20]; char pass[20]; unsigned long numrows = 0; my = mysql_init(NULL); sprintf(host,"localhost"); sprintf(user,"usernam…