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| author | Paul Eggert <eggert@cs.ucla.edu> | 2023-05-01 08:11:12 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2023-05-01 08:11:37 -0700 |
| commit | 98deb4fad3bdc7986274feebac3f0f8a50fdce0a (patch) | |
| tree | 665cf82abe975de6d64a22b3a4bc461c3ede462b | |
| parent | c2a5953f179814dd0f4b7e627aae9a009181ed6a (diff) | |
| download | gnulib-98deb4fad3bdc7986274feebac3f0f8a50fdce0a.tar.gz | |
limits-h: port to pcc
* doc/posix-headers/limits.texi: Document the issue.
* lib/limits.in.h (MB_LEN_MAX): New macro, if not already defined.
* m4/limits-h.m4 (gl_LIMITS_H): Test for MB_LEN_MAX.
* tests/test-limits-h.c: Check that it’s positive.
| -rw-r--r-- | ChangeLog | 8 | ||||
| -rw-r--r-- | doc/posix-headers/limits.texi | 3 | ||||
| -rw-r--r-- | lib/limits.in.h | 5 | ||||
| -rw-r--r-- | m4/limits-h.m4 | 1 | ||||
| -rw-r--r-- | tests/test-limits-h.c | 2 |
5 files changed, 19 insertions, 0 deletions
@@ -1,3 +1,11 @@ +2023-05-01 Paul Eggert <eggert@cs.ucla.edu> + + limits-h: port to pcc + * doc/posix-headers/limits.texi: Document the issue. + * lib/limits.in.h (MB_LEN_MAX): New macro, if not already defined. + * m4/limits-h.m4 (gl_LIMITS_H): Test for MB_LEN_MAX. + * tests/test-limits-h.c: Check that it’s positive. + 2023-04-28 Paul Eggert <eggert@cs.ucla.edu> year2038-recommended: new module diff --git a/doc/posix-headers/limits.texi b/doc/posix-headers/limits.texi index 09440cac8d..5fdcd14546 100644 --- a/doc/posix-headers/limits.texi +++ b/doc/posix-headers/limits.texi @@ -12,6 +12,9 @@ The macros @code{LLONG_MIN}, @code{LLONG_MAX}, @code{ULLONG_MAX} are not defined on some platforms: older glibc systems (e.g. Fedora 1), AIX 5.1, HP-UX 11, IRIX 6.5, OpenVMS. @item +The macro @code{MB_LEN_MAX} is not defined on some platforms: +pcc 1.2.0.DEVEL 20220331. +@item The macros @code{WORD_BIT}, @code{LONG_BIT} are not defined on some platforms: glibc 2.11 without @code{-D_GNU_SOURCE}, Cygwin, mingw, MSVC 14. @item diff --git a/lib/limits.in.h b/lib/limits.in.h index a01b4c6a28..45d46fd689 100644 --- a/lib/limits.in.h +++ b/lib/limits.in.h @@ -99,6 +99,11 @@ # endif #endif +/* Assume no multibyte character is longer than 16 bytes. */ +#ifndef MB_LEN_MAX +# define MB_LEN_MAX 16 +#endif + /* Macros specified by C23 and by ISO/IEC TS 18661-1:2014. */ #if (! defined ULLONG_WIDTH \ diff --git a/m4/limits-h.m4 b/m4/limits-h.m4 index 4f8ce41098..ca0294e550 100644 --- a/m4/limits-h.m4 +++ b/m4/limits-h.m4 @@ -24,6 +24,7 @@ AC_DEFUN_ONCE([gl_LIMITS_H], int ullw = ULLONG_WIDTH; int bw = BOOL_WIDTH; int bm = BOOL_MAX; + int mblm = MB_LEN_MAX; ]])], [gl_cv_header_limits_width=yes], [gl_cv_header_limits_width=no])]) diff --git a/tests/test-limits-h.c b/tests/test-limits-h.c index d8cdac288d..d7cfba7131 100644 --- a/tests/test-limits-h.c +++ b/tests/test-limits-h.c @@ -113,6 +113,8 @@ verify_width (ULLONG_WIDTH, 0, ULLONG_MAX); int bool_attrs[] = { BOOL_MAX, BOOL_WIDTH }; static_assert (BOOL_MAX == (((1U << (BOOL_WIDTH - 1)) - 1) * 2) + 1); +static_assert (0 < MB_LEN_MAX); + int main (void) { |