strlen()
Compute the length of a string
Synopsis:
#include <string.h>
size_t strlen( const char * s );
Arguments:
- s
- The string whose length you want to calculate.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The strlen() function computes the length of the string pointed to by s.
Returns:
The number of characters that precede the terminating null character.
Examples:
#include <stdio.h> #include <stdlib.h> #include <string.h> int main( void ) { printf( "%d\n", strlen( "Howdy" ) ); printf( "%d\n", strlen( "Hello world\n" ) ); printf( "%d\n", strlen( "" ) ); return EXIT_SUCCESS; }
produces the output:
5 12 0
Classification:
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | Yes |
Signal handler | Yes |
Thread | Yes |