QNX Developer Support
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getchar()
Get a character from stdin
Synopsis:
#include <stdio.h> int getchar( void );
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The getchar() function is equivalent to getc() on the stdin stream.
Returns:
The next character from the input stream pointed to by stdin, cast as (int)(unsigned char), or EOF if an end-of-file or error condition occurs (errno is set).
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Use feof() or ferror() to distinguish an end-of-file condition from an error. |
Examples:
#include <stdio.h>
#include <stdlib.h>
int main( void )
{
FILE *fp;
int c;
/* Get characters from "file" instead of
* stdin.
*/
fp = freopen( "file", "r", stdin );
while( ( c = getchar() ) != EOF ) {
putchar(c);
}
fclose( fp );
return EXIT_SUCCESS;
}
Classification:
| Safety: | |
|---|---|
| Cancellation point | Yes |
| Interrupt handler | No |
| Signal handler | No |
| Thread | Yes |
See also:
errno, feof(), ferror(), fgetc(), fgetchar(), getc(), putc(), putc_unlocked(), putchar(), putchar_unlocked()
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