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cpp:cctype:iscntrl [2012/10/12 15:03] |
cpp:cctype:iscntrl [2024/02/16 01:04] (current) |
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+ | {{keywords>wiki library source code example reference}} | ||
+ | ===== iscntrl ===== | ||
+ | <code cpp> | ||
+ | int iscntrl(int chr); | ||
+ | </code> | ||
+ | Tests if a character a control character | ||
+ | |||
+ | ===== cpp Sourcecode Example ===== | ||
+ | <code cpp> | ||
+ | #include <iostream> /* including standard library */ | ||
+ | #include <string> | ||
+ | #include <cctype> | ||
+ | |||
+ | using namespace std; | ||
+ | int main ( void ) | ||
+ | { | ||
+ | int i; | ||
+ | string str="Test\n-!&%1"; | ||
+ | for (i=0; i <= 11;i++) | ||
+ | { | ||
+ | if ( iscntrl(str[i]) != 0 ) | ||
+ | { | ||
+ | cout << "Character " << i << " is a control char" << endl; | ||
+ | } | ||
+ | } | ||
+ | return 0; | ||
+ | } | ||
+ | </code> | ||
+ | ==== output ==== | ||
+ | Character 4 is a control char | ||
+ | Character 10 is a control char | ||
+ | Character 11 is a control char | ||