Read a character from stdin
#include <stdio.h> int fgetchar( void );
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The fgetchar() function is the same as fgetc() with an argument of stdin.
The next character from stdin, cast as (int)(unsigned char), EOF if end-of-file has been reached on stdin or if an error occurs (errno is set).
#include <stdio.h> #include <stdlib.h> int main( void ) { FILE *fp; int c; fp = freopen( "file", "r", stdin ); if( fp != NULL ) { while( (c = fgetchar()) != EOF ) { fputchar(c); } fclose( fp ); return EXIT_SUCCESS; } return EXIT_FAILURE; }
Safety: | |
---|---|
Cancellation point | Yes |
Interrupt handler | No |
Signal handler | No |
Thread | Yes |
errno, feof(), ferror(), fgetc(), fputchar(), getc(), getchar()