putchar()
Write a character to standard output
Synopsis:
#include <stdio.h>
int putchar( int c );
Arguments:
- c
- The character that you want to write.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The putchar() function writes the character c, cast as (int)(unsigned char), to the stdout stream. It's equivalent to:
fputc( c, stdout );
Returns:
The character written, cast as (int)(unsigned char), or EOF if an error occurs (errno is set).
Examples:
#include <stdio.h> #include <stdlib.h> int main( void ) { FILE *fp; int c; fp = fopen( "file", "r" ); c = fgetc( fp ); while( c != EOF ) { putchar( c ); c = fgetc( fp ); } fclose( fp ); return EXIT_SUCCESS; }
Classification:
Safety: | |
---|---|
Cancellation point | Yes |
Interrupt handler | No |
Signal handler | No |
Thread | Yes |