GETC

Section: C Library Functions (3)
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BSD mandoc

NAME

fgetc getc getchar getw - get next character or word from input stream

SYNOPSIS

Fd #include <stdio.h> Ft int Fn fgetc FILE *stream Ft int Fn getc FILE *stream Ft int Fn getchar Ft int Fn getw FILE *stream

DESCRIPTION

The Fn fgetc function obtains the next input character (if present) from the stream pointed at by Fa stream , or the next character pushed back on the stream via ungetc.

The Fn getc function acts essentially identically to Fn fgetc , but is a macro that expands in-line.

The Fn getchar function is equivalent to: getc with the argument stdin.

The Fn getw function obtains the next int (if present) from the stream pointed at by Fa stream .

RETURN VALUES

If successful, these routines return the next requested object from the Fa stream . If the stream is at end-of-file or a read error occurs, the routines return EOF The routines feof(3) and ferror(3) must be used to distinguish between end-of-file and error. If an error occurs, the global variable errno is set to indicate the error. The end-of-file condition is remembered, even on a terminal, and all subsequent attempts to read will return EOF until the condition is cleared with clearerr.

STANDARDS

The Fn fgetc , Fn getc and Fn getchar functions conform to St -ansiC .

BUGS

Since EOF is a valid integer value, feof and ferror must be used to check for failure after calling Fn getw . The size and byte order of an int varies from one machine to another, and Fn getw is not recommended for portable applications.

This document was created by man2html, using the manual pages.
Time: 16:28:58 GMT, April 18, 2022