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[libpng17] Document affirm() and impossible() in the manual page.

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Glenn Randers-Pehrson 2015-03-21 21:46:00 -05:00
parent 06963c7841
commit 382de60042
2 changed files with 19 additions and 11 deletions
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10
libpng-manual.txt
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@ -1,6 +1,6 @@
libpng-manual.txt - A description on how to use and modify libpng libpng-manual.txt - A description on how to use and modify libpng
libpng version 1.7.0beta58 - March 17, 2015 libpng version 1.7.0beta58 - March 22, 2015
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net> <glennrp at users.sourceforge.net>
Copyright (c) 1998-2015 Glenn Randers-Pehrson Copyright (c) 1998-2015 Glenn Randers-Pehrson
@ -11,7 +11,7 @@ libpng-manual.txt - A description on how to use and modify libpng
Based on: Based on:
libpng versions 0.97, January 1998, through 1.7.0beta58 - March 17, 2015 libpng versions 0.97, January 1998, through 1.7.0beta58 - March 22, 2015
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2015 Glenn Randers-Pehrson Copyright (c) 1998-2015 Glenn Randers-Pehrson
@ -5166,6 +5166,10 @@ The 8-bit compose and rgb_to_grayscale operations were made more accurate.
While these did not introduce API incompatibility, there may be differences While these did not introduce API incompatibility, there may be differences
in unit test results. in unit test results.
Internal "affirm()" and "impossible()" macros were added. These are
similar to the ANSI-C "assert()" macro but they are not affected by NDEBUG,
and they are private and not visible to or usable by libpng applications.
XIV. Detecting libpng XIV. Detecting libpng
The png_get_io_ptr() function has been present since libpng-0.88, has never The png_get_io_ptr() function has been present since libpng-0.88, has never
@ -5336,7 +5340,7 @@ Other rules can be inferred by inspecting the libpng source.
XVII. Y2K Compliance in libpng XVII. Y2K Compliance in libpng
March 17, 2015 March 22, 2015
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.

20
libpng.3
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@ -1,4 +1,4 @@
.TH LIBPNG 3 "March 17, 2015" .TH LIBPNG 3 "March 22, 2015"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.7.0beta58 libpng \- Portable Network Graphics (PNG) Reference Library 1.7.0beta58
.SH SYNOPSIS .SH SYNOPSIS
@ -494,7 +494,7 @@ Following is a copy of the libpng-manual.txt file that accompanies libpng.
.SH LIBPNG.TXT .SH LIBPNG.TXT
libpng-manual.txt - A description on how to use and modify libpng libpng-manual.txt - A description on how to use and modify libpng
libpng version 1.7.0beta58 - March 17, 2015 libpng version 1.7.0beta58 - March 22, 2015
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net> <glennrp at users.sourceforge.net>
Copyright (c) 1998-2015 Glenn Randers-Pehrson Copyright (c) 1998-2015 Glenn Randers-Pehrson
@ -505,7 +505,7 @@ libpng-manual.txt - A description on how to use and modify libpng
Based on: Based on:
libpng versions 0.97, January 1998, through 1.7.0beta58 - March 17, 2015 libpng versions 0.97, January 1998, through 1.7.0beta58 - March 22, 2015
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2015 Glenn Randers-Pehrson Copyright (c) 1998-2015 Glenn Randers-Pehrson
@ -5660,6 +5660,10 @@ The 8-bit compose and rgb_to_grayscale operations were made more accurate.
While these did not introduce API incompatibility, there may be differences While these did not introduce API incompatibility, there may be differences
in unit test results. in unit test results.
Internal "affirm()" and "impossible()" macros were added. These are
similar to the ANSI-C "assert()" macro but they are not affected by NDEBUG,
and they are private and not visible to or usable by libpng applications.
.SH XIV. Detecting libpng .SH XIV. Detecting libpng
The png_get_io_ptr() function has been present since libpng-0.88, has never The png_get_io_ptr() function has been present since libpng-0.88, has never
@ -5830,7 +5834,7 @@ Other rules can be inferred by inspecting the libpng source.
.SH XVII. Y2K Compliance in libpng .SH XVII. Y2K Compliance in libpng
March 17, 2015 March 22, 2015
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
@ -6147,7 +6151,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation. Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.7.0beta58 - March 17, 2015: Libpng version 1.7.0beta58 - March 22, 2015:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net). Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@ -6170,8 +6174,8 @@ this sentence.
This code is released under the libpng license. This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.7.0beta58, March 17, 2015, are libpng versions 1.2.6, August 15, 2004, through 1.7.0beta58, March 22, 2015, are
Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are Copyright (c) 2004,2006-2015 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5 distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors with the following individual added to the list of Contributing Authors
@ -6269,7 +6273,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson Glenn Randers-Pehrson
glennrp at users.sourceforge.net glennrp at users.sourceforge.net
March 17, 2015 March 22, 2015
.\" end of man page .\" end of man page