Switch C++ language standard to C++20 - #15182
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* emu/ioport.h: Allow char8_t for names in field configuration helper. * emu/device.h, emu/gamedrv.h: Allow char8_t for descriptions and manufacturers, allow source file and manufacturer strings to be deduplicated. * util/language.h: Allow char8_t message input.
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As usual, GCC and clang have differing default levels of strictness on C++20 stuff. In particular, GCC tends to be more strict on telling you not to do arithmetic/bitwise operations on different enum types, while clang is a bit more lenient on that. It may be possible to make clang stricter on those specific thing without collateral damage, but I haven't looked into it too hard yet. |
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We are finally moving to c++20 modules? |
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No. There are no actual working implementations of C++20 modules. It’s a misguided feature railroaded into the standard by a powerful clique. It will end up going the same way as |
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…CC 11. (mamedev#15182) * Hackery to allow UTF-8 strings as well as plain strings: - emu/ioport.h: Allow char8_t for names in field configuration helper. - emu/device.h, emu/gamedrv.h: Allow char8_t for descriptions and manufacturers. - util/language.h: Allow char8_t message input. * util/strformat.h: Allow char8_t format and string arguments with char output. * ui/videoopt.cpp: Deal with UTF-8 strings as a distinct type. * osd/windows: Assume Windows 8 or later.
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…CC 11. (mamedev#15182) * Hackery to allow UTF-8 strings as well as plain strings: - emu/ioport.h: Allow char8_t for names in field configuration helper. - emu/device.h, emu/gamedrv.h: Allow char8_t for descriptions and manufacturers. - util/language.h: Allow char8_t message input. * util/strformat.h: Allow char8_t format and string arguments with char output. * ui/videoopt.cpp: Deal with UTF-8 strings as a distinct type. * osd/windows: Assume Windows 8 or later.
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…CC 11. (mamedev#15182) * Hackery to allow UTF-8 strings as well as plain strings: - emu/ioport.h: Allow char8_t for names in field configuration helper. - emu/device.h, emu/gamedrv.h: Allow char8_t for descriptions and manufacturers. - util/language.h: Allow char8_t message input. * util/strformat.h: Allow char8_t format and string arguments with char output. * ui/videoopt.cpp: Deal with UTF-8 strings as a distinct type. * osd/windows: Assume Windows 8 or later.
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…CC 11. (mamedev#15182) * Hackery to allow UTF-8 strings as well as plain strings: - emu/ioport.h: Allow char8_t for names in field configuration helper. - emu/device.h, emu/gamedrv.h: Allow char8_t for descriptions and manufacturers. - util/language.h: Allow char8_t message input. * util/strformat.h: Allow char8_t format and string arguments with char output. * ui/videoopt.cpp: Deal with UTF-8 strings as a distinct type. * osd/windows: Assume Windows 8 or later.
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The ugly parts of this are because C++20 makes
u8"..."a different type to"..."and we want to be able to continue using them interchangeably in some places.