1 // Specific definitions for HPUX -*- C++ -*- 2 3 // Copyright (C) 2000-2019 Free Software Foundation, Inc. 4 // 5 // This file is part of the GNU ISO C++ Library. This library is free 6 // software; you can redistribute it and/or modify it under the 7 // terms of the GNU General Public License as published by the 8 // Free Software Foundation; either version 3, or (at your option) 9 // any later version. 10 11 // This library is distributed in the hope that it will be useful, 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 // GNU General Public License for more details. 15 16 // Under Section 7 of GPL version 3, you are granted additional 17 // permissions described in the GCC Runtime Library Exception, version 18 // 3.1, as published by the Free Software Foundation. 19 20 // You should have received a copy of the GNU General Public License and 21 // a copy of the GCC Runtime Library Exception along with this program; 22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 // <http://www.gnu.org/licenses/>. 24 25 /** @file bits/os_defines.h 26 * This is an internal header file, included by other library headers. 27 * Do not attempt to use it directly. @headername{iosfwd} 28 */ 29 30 #ifndef _GLIBCXX_OS_DEFINES 31 #define _GLIBCXX_OS_DEFINES 1 32 33 // System-specific #define, typedefs, corrections, etc, go here. This 34 // file will come before all others. 35 36 // Use macro form of ctype functions to ensure __SB_masks is defined. 37 #define _SB_CTYPE_MACROS 1 38 39 /* HP-UX, for reasons unknown choose to use a different name for 40 the string to [unsigned] long long conversion routines. 41 42 Furthermore, instead of having the prototypes in stdlib.h like 43 everyone else, they put them into a non-standard header 44 <inttypes.h>. Ugh. 45 46 <inttypes.h> defines a variety of things, some of which we 47 probably do not want. So we don't want to include it here. 48 49 Luckily we can just declare strtoll and strtoull with the 50 __asm extension which effectively renames calls at the 51 source level without namespace pollution. 52 53 Also note that the compiler defines _INCLUDE_LONGLONG for C++ 54 unconditionally, which makes intmax_t and uintmax_t long long 55 types. 56 57 We also force _GLIBCXX_USE_LONG_LONG here so that we don't have 58 to bastardize configure to deal with this sillyness. */ 59 60 #ifdef __cplusplus 61 namespace std 62 { 63 extern "C" 64 { 65 #ifndef __LP64__ 66 __extension__ long long strtoll (const char *, char **, int) 67 __asm ("__strtoll"); 68 __extension__ unsigned long long strtoull (const char *, char **, int) 69 __asm ("__strtoull"); 70 #else 71 __extension__ long long strtoll (const char *, char **, int) 72 __asm ("strtol"); 73 __extension__ unsigned long long strtoull (const char *, char **, int) 74 __asm ("strtoul"); 75 #endif 76 } 77 } // namespace std 78 #endif // __cplusplus 79 80 #define _GLIBCXX_USE_LONG_LONG 1 81 82 // HPUX on IA64 requires vtable to be 64 bit aligned even at 32 bit 83 // mode. We need to pad the vtable structure to achieve this. 84 #if !defined(_LP64) && defined (__ia64__) 85 #define _GLIBCXX_VTABLE_PADDING 8 86 typedef long int __padding_type; 87 #endif 88 89 // GCC on IA64 HP-UX uses the HP-UX system unwind library, 90 // it does not have the _Unwind_Resume_or_Rethrow entry point 91 // because that is not part of the standard IA64 Unwind ABI. 92 #if defined (__ia64__) 93 #define _LIBUNWIND_STD_ABI 1 94 #endif 95 96 /* Don't use pragma weak in gthread headers. HP-UX rejects programs 97 with unsatisfied external references even if all of those references 98 are weak; gthread relies on such unsatisfied references being resolved 99 to null pointers when weak symbol support is on. */ 100 #define _GLIBCXX_GTHREAD_USE_WEAK 0 101 102 // No support for referencing weak symbols without a definition. 103 #define _GLIBCXX_USE_WEAK_REF 0 104 105 // The strtold function is obsolete and not C99 conformant on PA HP-UX. 106 // It returns plus or minus _LDBL_MAX instead of plus or minus HUGE_VALL 107 // if the correct value would cause overflow. It doesn't handle "inf", 108 // "infinity" and "nan". It is not thread safe. 109 #if defined (__hppa__) 110 #define _GLIBCXX_HAVE_BROKEN_STRTOLD 1 111 #endif 112 113 // The vnsprintf function returns -1 when the buffer is too small. 114 // See PR libstdc++/68737. 115 #define _GLIBCXX_HAVE_BROKEN_VSNPRINTF 1 116 117 #endif 118