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Update to CONFORMANCE
- From: "Joseph S. Myers" <jsm at polyomino dot org dot uk>
- To: libc-alpha at sources dot redhat dot com
- Date: Wed, 31 Dec 2003 20:00:00 +0000 (UTC)
- Subject: Update to CONFORMANCE
CONFORMANCE is somewhat out of date in its list of C99 conformance
issues in glibc. This patch updates it somewhat to remove various
issues that have been fixed (in the C99 standard, GCC or glibc).
2003-12-31 Joseph S. Myers <jsm@polyomino.org.uk>
* CONFORMANCE: Update.
--- CONFORMANCE.orig 2001-01-13 20:38:20.000000000 +0000
+++ CONFORMANCE 2003-12-31 19:58:59.000000000 +0000
@@ -84,17 +84,8 @@
Defects in the C99 standard
===========================
-The definition of macros such as INT8_C in <stdint.h> and <inttypes.h>
-is not implementable (Defect Report #209); this is expected to be
-fixed in a Technical Corrigendum to make the macros yield a constant
-expression of the promoted type (for example, int rather than char)
-rather than needing to be able to represent constants of type char.
-glibc follows this corrected version.
-
-Several of the <fenv.h> functions are specified to return void, but
-Defect Report #202 points out that under some circumstances they may
-need to return an error status. They are expected to be corrected to
-return int; glibc follows this corrected specification.
+Some defects in C99 were corrected in Technical Corrigendum 1 to that
+standard. glibc follows the corrected specification.
Implementation of library functions
@@ -147,8 +138,7 @@
For most of the headers required of freestanding implementations,
glibc relies on GCC to provide correct versions. (At present, glibc
-provides <stdint.h>, and GCC doesn't.) GCC's <float.h> is missing
-FLT_EVAL_METHOD and DECIMAL_DIG.
+provides <stdint.h>, and GCC doesn't.)
Implementing MATH_ERRNO, MATH_ERREXCEPT and math_errhandling in
<math.h> needs compiler support: see
@@ -162,9 +152,9 @@
===================
There are various technical issues with the definitions contained in
-glibc's headers, listed below. The list below assumes current CVS GCC
-as of 2001-01-10, and relates to i686-linux; older GCC may lead to
-more problems in the headers.
+glibc's headers, listed below. The list below assumes GCC 3.3.2, and
+relates to i686-linux; older GCC may lead to more problems in the
+headers.
Note that the _t suffix is reserved by POSIX, but not by pure ISO C.
Also, the Single Unix Specification generally requires more types to
@@ -173,12 +163,8 @@
<ctype.h> should not declare size_t.
-<inttypes.h> should not declare wchar_t.
-
<signal.h> should not declare size_t.
-<stdint.h> should not declare wchar_t.
-
<stdio.h> should not declare or use wchar_t or wint_t.
<wchar.h> does not support AMD1; to support it, the functions
--
Joseph S. Myers
jsm@polyomino.org.uk