| 1 | /* Copyright (C) 2010-2020 The RetroArch team |
| 2 | * |
| 3 | * --------------------------------------------------------------------------------------- |
| 4 | * The following license statement only applies to this file (retro_common_api.h). |
| 5 | * --------------------------------------------------------------------------------------- |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, |
| 8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), |
| 9 | * to deal in the Software without restriction, including without limitation the rights to |
| 10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, |
| 11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, |
| 16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #ifndef _LIBRETRO_COMMON_RETRO_COMMON_API_H |
| 24 | #define _LIBRETRO_COMMON_RETRO_COMMON_API_H |
| 25 | |
| 26 | /* |
| 27 | This file is designed to normalize the libretro-common compiling environment |
| 28 | for public API headers. This should be leaner than a normal compiling environment, |
| 29 | since it gets #included into other project's sources. |
| 30 | */ |
| 31 | |
| 32 | /* ------------------------------------ */ |
| 33 | |
| 34 | /* |
| 35 | Ordinarily we want to put #ifdef __cplusplus extern "C" in C library |
| 36 | headers to enable them to get used by c++ sources. |
| 37 | However, we want to support building this library as C++ as well, so a |
| 38 | special technique is called for. |
| 39 | */ |
| 40 | |
| 41 | #define RETRO_BEGIN_DECLS |
| 42 | #define RETRO_END_DECLS |
| 43 | |
| 44 | #ifdef __cplusplus |
| 45 | |
| 46 | #ifdef CXX_BUILD |
| 47 | /* build wants everything to be built as c++, so no extern "C" */ |
| 48 | #else |
| 49 | #undef RETRO_BEGIN_DECLS |
| 50 | #undef RETRO_END_DECLS |
| 51 | #define RETRO_BEGIN_DECLS extern "C" { |
| 52 | #define RETRO_END_DECLS } |
| 53 | #endif |
| 54 | |
| 55 | #else |
| 56 | |
| 57 | /* header is included by a C source file, so no extern "C" */ |
| 58 | |
| 59 | #endif |
| 60 | |
| 61 | /* |
| 62 | IMO, this non-standard ssize_t should not be used. |
| 63 | However, it's a good example of how to handle something like this. |
| 64 | */ |
| 65 | #ifdef _MSC_VER |
| 66 | #ifndef HAVE_SSIZE_T |
| 67 | #define HAVE_SSIZE_T |
| 68 | #if defined(_WIN64) |
| 69 | typedef __int64 ssize_t; |
| 70 | #elif defined(_WIN32) |
| 71 | typedef int ssize_t; |
| 72 | #endif |
| 73 | #endif |
| 74 | #elif defined(__MACH__) |
| 75 | #include <sys/types.h> |
| 76 | #endif |
| 77 | |
| 78 | #ifdef _MSC_VER |
| 79 | #if _MSC_VER >= 1800 |
| 80 | #include <inttypes.h> |
| 81 | #else |
| 82 | #ifndef PRId64 |
| 83 | #define PRId64 "I64d" |
| 84 | #define PRIu64 "I64u" |
| 85 | #define PRIuPTR "Iu" |
| 86 | #endif |
| 87 | #endif |
| 88 | #else |
| 89 | /* C++11 says this one isn't needed, but apparently (some versions of) mingw require it anyways */ |
| 90 | /* https://stackoverflow.com/questions/8132399/how-to-printf-uint64-t-fails-with-spurious-trailing-in-format */ |
| 91 | /* https://github.com/libretro/RetroArch/issues/6009 */ |
| 92 | #ifndef __STDC_FORMAT_MACROS |
| 93 | #define __STDC_FORMAT_MACROS 1 |
| 94 | #endif |
| 95 | #include <inttypes.h> |
| 96 | #endif |
| 97 | #ifndef PRId64 |
| 98 | #error "inttypes.h is being screwy" |
| 99 | #endif |
| 100 | #define STRING_REP_INT64 "%" PRId64 |
| 101 | #define STRING_REP_UINT64 "%" PRIu64 |
| 102 | #define STRING_REP_USIZE "%" PRIuPTR |
| 103 | |
| 104 | /* |
| 105 | I would like to see retro_inline.h moved in here; possibly boolean too. |
| 106 | |
| 107 | rationale: these are used in public APIs, and it is easier to find problems |
| 108 | and write code that works the first time portably when theyre included uniformly |
| 109 | than to do the analysis from scratch each time you think you need it, for each feature. |
| 110 | |
| 111 | Moreover it helps force you to make hard decisions: if you EVER bring in boolean.h, |
| 112 | then you should pay the price everywhere, so you can see how much grief it will cause. |
| 113 | |
| 114 | Of course, another school of thought is that you should do as little damage as possible |
| 115 | in as few places as possible... |
| 116 | */ |
| 117 | |
| 118 | /* _LIBRETRO_COMMON_RETRO_COMMON_API_H */ |
| 119 | #endif |