get a character from stdin
#include <stdio.h> int fgetchar( void );
The fgetchar() function is equivalent to fgetc() with the argument stdin.
The next character from the input stream pointed to by stdin. If the stream is at end-of-file, the end-of-file indicator is set, and the function returns EOF. If a read error occurs, the error indicator is set, and the function returns EOF.
When an error occurs, the global variable errno contains a value indicating the type of error that has been detected.
#include <stdio.h>
void main()
{
FILE *fp;
int c;
fp = freopen( "file", "r", stdin );
if( fp != NULL ) {
while( (c = fgetchar()) != EOF )
fputchar(c);
fclose( fp );
}
}
WATCOM
| Safety: | |
|---|---|
| Interrupt handler | No |
| Signal handler | No |
| Thread | Yes |
errno, fgetc(), fgets(), fopen(), getc(), getchar(), gets(), ungetc()