fputchar()

Write a character to stdout

Synopsis:

#include <stdio.h>

int fputchar( int c );

Arguments:

c
The character 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 fputchar() function writes the character specified by c, cast as (int)(unsigned char), to stdout. It's equivalent to putchar() and to:

fputc( c, stdout );

Returns:

The character written, cast as (int)(unsigned char), or EOF if an error occurred ( errno is set).

Examples:

#include <stdio.h>
#include <stdlib.h>

int main( void )
{
    FILE *fp;
    int c;

    fp = fopen( "file", "r" );
    if( fp != NULL ) {
        c = fgetc( fp );
        while( c != EOF ) {
            fputchar( c );
            c = fgetc( fp );
        }
        fclose( fp );
        
        return EXIT_SUCCESS;
    }
    
    return EXIT_FAILURE;
}

Classification:

QNX 4

Safety:  
Cancellation point Yes
Interrupt handler No
Signal handler No
Thread Yes

Caveats:

If c is negative, the value returned by this function isn't equal to c — unless c is -1 and an error occurred :-)

Last modified: 2013-12-23

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