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Convert a string to lowercase
#include <string.h>
char* strlwr( char* s1 );
- s1
- The string that you want to convert to lowercase.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The strlwr() function replaces
the string s1 with lowercase characters, by invoking
tolower()
for each character in the string.
The address of the string.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char source[] = { "A mixed-case STRING" };
int main( void )
{
printf( "%s\n", source );
printf( "%s\n", strlwr( source ) );
printf( "%s\n", source );
return EXIT_SUCCESS;
}
produces the output:
A mixed-case STRING
a mixed-case string
a mixed-case string
Unix
Safety: | |
Cancellation point |
No |
Interrupt handler |
Yes |
Signal handler |
Yes |
Thread |
Yes |
strupr(),
tolower()
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