[thirdparty/man-pages.git] / man3 / gnu_get_libc_version.3

.\" Copyright (c) 2008, Linux Foundation, written by Michael Kerrisk
.\"     <mtk.manpages@gmail.com>
.\"
.\" %%%LICENSE_START(VERBATIM)
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date.  The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein.  The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\" %%%LICENSE_END
.\"
.TH GNU_GET_LIBC_VERSION 3 2017-09-15 "Linux" "Linux Programmer's Manual"
.SH NAME
gnu_get_libc_version, gnu_get_libc_release \- get glibc version and release
.SH SYNOPSIS
.nf
.B #include <gnu/libc-version.h>
.PP
.B const char *gnu_get_libc_version(void);
.B const char *gnu_get_libc_release(void);
.fi
.SH DESCRIPTION
The function
.BR gnu_get_libc_version ()
returns a string that identifies the glibc version available on the system.
.PP
The function
.BR gnu_get_libc_release ()
returns a string indicates the release status of the glibc version
available on the system.
This will be a string such as
.IR "stable" .
.SH VERSIONS
These functions first appeared in glibc in version 2.1.
.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
.TS
allbox;
lbw23 lb lb
l l l.
Interface	Attribute	Value
T{
.BR gnu_get_libc_version (),
.BR gnu_get_libc_release ()
T}	Thread safety	MT-Safe
.TE
.SH CONFORMING TO
These functions are glibc-specific.
.SH EXAMPLE
When run, the program below will produce output such as the following:
.PP
.in +4n
.EX
.RB "$" " ./a.out"
GNU libc version: 2.8
GNU libc release: stable
.EE
.in
.SS Program source
\&
.EX
#include <gnu/libc-version.h>
#include <stdlib.h>
#include <stdio.h>

int
main(int argc, char *argv[])
{
    printf("GNU libc version: %s\\n", gnu_get_libc_version());
    printf("GNU libc release: %s\\n", gnu_get_libc_release());
    exit(EXIT_SUCCESS);
}
.EE
.SH SEE ALSO
.BR confstr (3)
Commit	Line	Data
6f9799dc MK	1	.\" Copyright (c) 2008, Linux Foundation, written by Michael Kerrisk
	2	.\" <mtk.manpages@gmail.com>
	3	.\"
93015253	4	.\" %%%LICENSE_START(VERBATIM)
6f9799dc MK	5	.\" Permission is granted to make and distribute verbatim copies of this
	6	.\" manual provided the copyright notice and this permission notice are
	7	.\" preserved on all copies.
	8	.\"
	9	.\" Permission is granted to copy and distribute modified versions of this
	10	.\" manual under the conditions for verbatim copying, provided that the
	11	.\" entire resulting derived work is distributed under the terms of a
	12	.\" permission notice identical to this one.
	13	.\"
	14	.\" Since the Linux kernel and libraries are constantly changing, this
	15	.\" manual page may be incorrect or out-of-date. The author(s) assume no
	16	.\" responsibility for errors or omissions, or for damages resulting from
	17	.\" the use of the information contained herein. The author(s) may not
	18	.\" have taken the same level of care in the production of this manual,
	19	.\" which is licensed free of charge, as they might when working
	20	.\" professionally.
	21	.\"
	22	.\" Formatted or processed versions of this manual, if unaccompanied by
	23	.\" the source, must acknowledge the copyright and authors of this work.
4b72fb64	24	.\" %%%LICENSE_END
6f9799dc	25	.\"
4b8c67d9	26	.TH GNU_GET_LIBC_VERSION 3 2017-09-15 "Linux" "Linux Programmer's Manual"
6f9799dc MK	27	.SH NAME
	28	gnu_get_libc_version, gnu_get_libc_release \- get glibc version and release
	29	.SH SYNOPSIS
	30	.nf
6f9799dc	31	.B #include <gnu/libc-version.h>
dbfe9c70	32	.PP
6f9799dc MK	33	.B const char *gnu_get_libc_version(void);
	34	.B const char *gnu_get_libc_release(void);
	35	.fi
	36	.SH DESCRIPTION
	37	The function
	38	.BR gnu_get_libc_version ()
	39	returns a string that identifies the glibc version available on the system.
847e0d88	40	.PP
6f9799dc MK	41	The function
	42	.BR gnu_get_libc_release ()
	43	returns a string indicates the release status of the glibc version
	44	available on the system.
	45	This will be a string such as
	46	.IR "stable" .
	47	.SH VERSIONS
	48	These functions first appeared in glibc in version 2.1.
2bee9c14 PH	49	.SH ATTRIBUTES
	50	For an explanation of the terms used in this section, see
	51	.BR attributes (7).
	52	.TS
	53	allbox;
	54	lbw23 lb lb
	55	l l l.
	56	Interface Attribute Value
	57	T{
	58	.BR gnu_get_libc_version (),
	59	.BR gnu_get_libc_release ()
	60	T} Thread safety MT-Safe
	61	.TE
6f9799dc MK	62	.SH CONFORMING TO
	63	These functions are glibc-specific.
	64	.SH EXAMPLE
	65	When run, the program below will produce output such as the following:
e646a1ba	66	.PP
6f9799dc	67	.in +4n
e646a1ba	68	.EX
b43a3b30	69	.RB "$" " ./a.out"
6f9799dc MK	70	GNU libc version: 2.8
6f9799dc MK	71	GNU libc release: stable
b8302363	72	.EE
6f9799dc	73	.in
9c330504	74	.SS Program source
d84d0300	75	\&
e7d0bb47	76	.EX
6f9799dc MK	77	#include <gnu/libc-version.h>
	78	#include <stdlib.h>
	79	#include <stdio.h>
	80
	81	int
	82	main(int argc, char *argv[])
	83	{
	84	printf("GNU libc version: %s\\n", gnu_get_libc_version());
	85	printf("GNU libc release: %s\\n", gnu_get_libc_release());
	86	exit(EXIT_SUCCESS);
	87	}
e7d0bb47	88	.EE
6f9799dc MK	89	.SH SEE ALSO
6f9799dc MK	90	.BR confstr (3)