xref: /illumos-gate/usr/src/man/man3head/stdio.h.3head (revision afab0816ecb604f0099a09ad8ee398f0d7b77b1c)
te
Copyright (c) 2001, The IEEE and The Open Group. All Rights Reserved. Portions Copyright (c) 2004, Sun Microsystems, Inc. All Rights Reserved.
Sun Microsystems, Inc. gratefully acknowledges The Open Group for permission to reproduce portions of its copyrighted documentation. Original documentation from The Open Group can be obtained online at
http://www.opengroup.org/bookstore/.
The Institute of Electrical and Electronics Engineers and The Open Group, have given us permission to reprint portions of their documentation. In the following statement, the phrase "this text" refers to portions of the system documentation. Portions of this text are reprinted and reproduced in electronic form in the Sun OS Reference Manual, from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between these versions and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html.
This notice shall appear on any product containing this material.
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
stdio.h 3HEAD "10 Sep 2004" "SunOS 5.11" "Headers"
NAME
stdio.h, stdio - standard buffered input/output
SYNOPSIS

#include <stdio.h>
DESCRIPTION

The <stdio.h> header defines the following macros as positive integer constant expressions:

BUFSIZ

size of <stdio.h> buffers

_IOFBF

input/output fully buffered

_IOLBF

input/output line buffered

_IONBF

input/output unbuffered

L_ctermid

maximum size of character array to hold ctermid() output

L_tmpnam

maximum size of character array to hold tmpnam() output

SEEK_CUR

seek relative to current position

SEEK_END

seek relative to end-of-file

SEEK_SET

seek relative to start-of-file

The following macros are defined as positive integer constant expressions that denote implementation limits:

{FILENAME_MAX}

Maximum size in bytes of the longest filename string that the implementation guarantees can be opened.

{FOPEN_MAX}

Number of streams that the implementation guarantees can be open simultaneously. The value is at least eight.

{TMP_MAX}

Minimum number of unique filenames generated by tmpnam(). Maximum number of times an application can call tmpnam() reliably. The value of {TMP_MAX} is at least 25. On XSI-conformant systems, the value of {TMP_MAX} is at least 10000.

The following macro name is defined as a negative integer constant expression:

EOF

end-of-file return value

The following macro name is defined as a null pointer constant:

NULL

null pointer

The following macro name is defined as a string constant:

P_tmpdir

default directory prefix for tempnam()

The following is defined as expressions of type "pointer to FILE" point to the FILE objects associated, respectively, with the standard error, input, and output streams:

stderr

standard error output stream

stdin

standard input stream

stdout

standard output stream

The following data types are defined through typedef:

FILE

structure containing information about a file

fpos_t

non-array type containing all information needed to specify uniquely every position within a file

va_list

as described in <stdarg.h>

size_t

as described in <stddef.h>

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
Interface StabilityStandard
SEE ALSO

rename(2), ctermid(3C), fclose(3C), fdopen(3C), fflush(3C), fgetc(3C), fgetpos(3C), fgets(3C), flockfile(3C), fopen(3C), fputc(3C), fputs(3C), fputwc(3C), fread(3C), freopen(3C), fseek(3C), fsetpos(3C), ftell(3C), fwrite(3C), getwchar(3C), getopt(3C), perror(3C), popen(3C), printf(3C), remove(3C), rewind(3C), scanf(3C), setbuf(3C), stdio(3C), system(3C), tmpfile(3C), tmpnam(3C), ungetc(3C), vprintf(3C), attributes(5), standards(5)