Differences

This shows you the differences between two versions of the page.

@@ Line 1: / Line 1: @@
+{{keywords>wiki library source code example reference}}
+====== atoi ======
+<code c>
+    #include <stdlib.h>
+    int atoi(const char *str);
+</code>
+    convert a string to integer
+===== C Sourcecode Example =====
+<code c>
+#include <stdio.h> /* including standard library */
+//#include <windows.h> /* uncomment this for Windows */
+#include <stdlib.h>
+int main(void){
+    char string[]="1234";
+    int  i;
+printf("string = %s \n", string );
+printf("int = %i \n", atoi(string) );
+i = atoi(string);
+i = i + i;
+printf("i + i = %i\n", i);
+return 0;
+}
+</code>
+==== Output ====
+    Output:
+    user@host:~$ ./atoi
+    string = 1234
+    int = 1234
+    i + i = 2468

on the occasion of the current invasion of Russia in Ukraine