strcmp()
Compare two strings
Synopsis:
#include <string.h> int strcmp( const char* s1, const char* s2 );
Arguments:
- s1, s2
- The strings that you want to compare.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The strcmp() function compares the string pointed to by s1 to the string pointed to by s2.
Returns:
- < 0
- s1 is less than s2.
- 0
- s1 is equal to s2.
- > 0
- s1 is greater than s2.
Examples:
#include <stdio.h> #include <string.h> #include <stdlib.h> int main( void ) { printf( "%d\n", strcmp( "abcdef", "abcdef" ) ); printf( "%d\n", strcmp( "abcdef", "abc" ) ); printf( "%d\n", strcmp( "abc", "abcdef" ) ); printf( "%d\n", strcmp( "abcdef", "mnopqr" ) ); printf( "%d\n", strcmp( "mnopqr", "abcdef" ) ); return EXIT_SUCCESS; }
produces the output:
0 1 -1 -1 1
Classification:
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | Yes |
Signal handler | Yes |
Thread | Yes |