8d9254fc8a
From-SVN: r279813
118 lines
4.2 KiB
C++
118 lines
4.2 KiB
C++
// Specific definitions for HPUX -*- C++ -*-
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// Copyright (C) 2000-2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file bits/os_defines.h
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* This is an internal header file, included by other library headers.
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* Do not attempt to use it directly. @headername{iosfwd}
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*/
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#ifndef _GLIBCXX_OS_DEFINES
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#define _GLIBCXX_OS_DEFINES 1
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// System-specific #define, typedefs, corrections, etc, go here. This
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// file will come before all others.
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// Use macro form of ctype functions to ensure __SB_masks is defined.
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#define _SB_CTYPE_MACROS 1
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/* HP-UX, for reasons unknown choose to use a different name for
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the string to [unsigned] long long conversion routines.
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Furthermore, instead of having the prototypes in stdlib.h like
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everyone else, they put them into a non-standard header
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<inttypes.h>. Ugh.
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<inttypes.h> defines a variety of things, some of which we
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probably do not want. So we don't want to include it here.
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Luckily we can just declare strtoll and strtoull with the
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__asm extension which effectively renames calls at the
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source level without namespace pollution.
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Also note that the compiler defines _INCLUDE_LONGLONG for C++
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unconditionally, which makes intmax_t and uintmax_t long long
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types.
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We also force _GLIBCXX_USE_LONG_LONG here so that we don't have
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to bastardize configure to deal with this sillyness. */
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#ifdef __cplusplus
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namespace std
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{
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extern "C"
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{
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#ifndef __LP64__
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__extension__ long long strtoll (const char *, char **, int)
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__asm ("__strtoll");
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__extension__ unsigned long long strtoull (const char *, char **, int)
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__asm ("__strtoull");
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#else
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__extension__ long long strtoll (const char *, char **, int)
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__asm ("strtol");
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__extension__ unsigned long long strtoull (const char *, char **, int)
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__asm ("strtoul");
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#endif
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}
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} // namespace std
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#endif // __cplusplus
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#define _GLIBCXX_USE_LONG_LONG 1
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// HPUX on IA64 requires vtable to be 64 bit aligned even at 32 bit
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// mode. We need to pad the vtable structure to achieve this.
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#if !defined(_LP64) && defined (__ia64__)
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#define _GLIBCXX_VTABLE_PADDING 8
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typedef long int __padding_type;
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#endif
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// GCC on IA64 HP-UX uses the HP-UX system unwind library,
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// it does not have the _Unwind_Resume_or_Rethrow entry point
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// because that is not part of the standard IA64 Unwind ABI.
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#if defined (__ia64__)
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#define _LIBUNWIND_STD_ABI 1
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#endif
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/* Don't use pragma weak in gthread headers. HP-UX rejects programs
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with unsatisfied external references even if all of those references
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are weak; gthread relies on such unsatisfied references being resolved
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to null pointers when weak symbol support is on. */
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#define _GLIBCXX_GTHREAD_USE_WEAK 0
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// No support for referencing weak symbols without a definition.
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#define _GLIBCXX_USE_WEAK_REF 0
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// The strtold function is obsolete and not C99 conformant on PA HP-UX.
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// It returns plus or minus _LDBL_MAX instead of plus or minus HUGE_VALL
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// if the correct value would cause overflow. It doesn't handle "inf",
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// "infinity" and "nan". It is not thread safe.
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#if defined (__hppa__)
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#define _GLIBCXX_HAVE_BROKEN_STRTOLD 1
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#endif
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// The vnsprintf function returns -1 when the buffer is too small.
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// See PR libstdc++/68737.
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#define _GLIBCXX_HAVE_BROKEN_VSNPRINTF 1
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#endif
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