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2003-12-31 Joseph S. Myers <jsm@polyomino.org.uk>

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* CONFORMANCE: Update.
This commit is contained in:
Roland McGrath 2003-12-31 23:53:18 +00:00
parent 25ac02584c
commit 9718642bc3
1 changed files with 6 additions and 20 deletions
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26
CONFORMANCE
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@ -84,17 +84,8 @@ fixed, or to compiler limitations.
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 @@ builtins.
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 @@ Issues with headers
===================
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 @@ than ISO C permits.
<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