putc() -- write character to stream

SYNOPSIS

#include <stdio.h>

int putc(int c, FILE *stream);

The putc() function is equivalent to fputc(). It writes a byte with value c, cast as an unsigned character, to stream. After putc() returns, the character may be held in an internal buffer either until fflush() or fclose() are executed on stream, or until the process executes exit() or abort().

PARAMETERS

c: Is the character to be written.
stream: Points to the output stream.

RETURN VALUES

On success, putc() returns the value c that it wrote to stream. On failure, it returns EOF and sets errno to one of the following values:

EACCES: Another process has the file locked.
EBADF: stream is not a valid stream opened for writing.
EFBIG: The file is a regular file and an attempt was made to write at or beyond the offset maximum.
EINTR: A signal interrupted the call.
EIO: An output error occurred.
ENOMEM: Memory could not be allocated for internal buffers.
ENOSPC: An attempt was made to write to a full disk.
ENXIO: A device error occurred.
EPIPE: An attempt was made to write to a closed pipe.

CONFORMANCE

ANSI/ISO 9899-1990.

MULTITHREAD SAFETY LEVEL

MT-Safe.

PORTING ISSUES

If the stream is from a file opened in text mode, linefeed is translated to carriage-return linefeed on output. No such translation occurs for files opened in binary mode.

AVAILABILITY

MKS Toolkit for Professional Developers
MKS Toolkit for Enterprise Developers
MKS Toolkit for Enterprise Developers 64-Bit Edition

putc()
write character to stream

Function