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Diffstat (limited to 'gnulib/doc/posix-headers/stdint.texi')
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| -rw-r--r-- | gnulib/doc/posix-headers/stdint.texi | 72 |
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diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/doc/posix-headers/stdint.texi b/gnulib/doc/posix-headers/stdint.texi new file mode 100644 index 0000000..be19269 --- /dev/null +++ b/gnulib/doc/posix-headers/stdint.texi @@ -0,0 +1,72 @@ +@node stdint.h +@section @file{stdint.h} + +POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/basedefs/stdint.h.html} + +Gnulib module: stdint + +Portability problems fixed by Gnulib: +@itemize +@item +This header file is missing on some platforms: +OpenBSD 3.8, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, MSVC 9, Interix 3.5, BeOS. +@item +This header file is very incomplete on some platforms. +@item +The values of @code{SIG_ATOMIC_MIN} and @code{SIG_ATOMIC_MAX} are incorrect +on some platforms: +FreeBSD 6.2 / ia64. +@item +The value of @code{WINT_MAX} is incorrect on some platforms: +mingw. +@item +The values of @code{INT8_MAX}, @code{UINT8_MAX} etc. are not usable in +preprocessor expressions on some platforms: +HP-UX 11.23. +@item +The macros @code{WCHAR_MIN} and @code{WCHAR_MAX} are not defined in +@code{<stdint.h>} (only in @code{<wchar.h>}) on some platforms: +Dragonfly, BSDI. +@item +On some hosts that predate C++11, when using C++ one must define +@code{__STDC_CONSTANT_MACROS} to make visible the definitions of +constant macros such as @code{INTMAX_C}, and one must define +@code{__STDC_LIMIT_MACROS} to make visible the definitions of limit +macros such as @code{INTMAX_MAX}. +@end itemize + +Portability problems not fixed by Gnulib: +@itemize +@item +@code{@{uint,int@}_fast@{8,16,32,64@}_t} may not correspond to the fastest +types available on the system. +@item +Macros are used instead of typedefs. +@item +Some C preprocessors mishandle constants that do not fit in @code{long int}. +For example, as of 2007, Sun C mishandles @code{#if LLONG_MIN < 0} on +a platform with 32-bit @code{long int} and 64-bit @code{long long int}. +Some older preprocessors mishandle constants ending in @code{LL}. +To work around these problems, compute the value of expressions like +@code{LONG_MAX < LLONG_MAX} at @code{configure}-time rather than at +@code{#if}-time. +@end itemize + +The stdint.h module uses @code{#include_next}. If you wish to install +the generated stdint.h file under another name, typically in order to +be able to use some of the types defined by stdint.h in your public +header file, you could use the following Makefile.am-snippet: + +@example + +BUILT_SOURCES += idn-int.h +DISTCLEANFILES += idn-int.h +nodist_include_HEADERS += idn-int.h + +idn-int.h: + if test -n "$(STDINT_H)"; then \ + sed -e s/include_next/include/ gl/stdint.h > idn-int.h; \ + else \ + echo '#include <stdint.h>' > idn-int.h; \ + fi +@end example |