putchar man page


This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

putchar — put a byte on a stdout stream


#include <stdio.h>

int putchar(int c);


The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1‐2008 defers to the ISO C standard.

The function call putchar(c) shall be equivalent to putc(c,stdout).

Return Value

Refer to fputc().


Refer to fputc().

The following sections are informative.

See Also

Section 2.5, Standard I/O Streams, putc()

The Base Definitions volume of POSIX.1‐2008, <stdio.h>


2013 IEEE/The Open Group POSIX Programmer's Manual