write a character to stdout
#include <stdio.h> int putchar( int c );
The putchar() function writes the character specified by the argument c to the output stream stdout. It's equivalent to
fputc( c, stdout );
The character written. If a write error occurs, errno is set, and putchar() returns EOF.
#include <stdio.h>
void main()
{
FILE *fp;
int c;
fp = fopen( "file", "r" );
c = fgetc( fp );
while( c != EOF ) {
putchar( c );
c = fgetc( fp );
}
fclose( fp );
}
ANSI
| Safety: | |
|---|---|
| Interrupt handler | No |
| Signal handler | No |
| Thread | Yes |
errno, ferror(), fopen(), fputc(), fputchar(), fputs(), putc()