50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
#include "SceTypes.hpp"
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#include "prx/libc/include/general/VabiMacros.hpp"
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#include <cstdarg>
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#include <cstdio>
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#include <cstdlib>
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#include <string>
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extern "C" int APS5_VABI vswprintf_nid_postfix(char16_t*, std::size_t, const char16_t*, VaList*);
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static int APS5_VABI Format(char16_t* buffer, std::size_t size, const char16_t* format, ...) {
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#ifdef _WIN32
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__builtin_sysv_va_list args;
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__builtin_sysv_va_start(args, format);
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#else
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std::va_list args;
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va_start(args, format);
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#endif
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const int result = vswprintf_nid_postfix(buffer, size, format, reinterpret_cast<VaList*>(args));
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#ifdef _WIN32
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__builtin_sysv_va_end(args);
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#else
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va_end(args);
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#endif
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return result;
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}
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static void Check(const char16_t* format, const char* input, const char16_t* expected) {
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char16_t buffer[32]{};
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const int result = Format(buffer, 32, format, input);
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const std::u16string wanted(expected);
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if (result != static_cast<int>(wanted.size()) || buffer != wanted) {
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std::fprintf(stderr, "wide precision: expected %zu units, got %d\n", wanted.size(), result);
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std::abort();
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}
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}
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int main() {
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Check(u"%.2s", "\xc3\xa9\xc3\xa8", u"\u00e9\u00e8");
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Check(u"%.1s", "\xc3\xa9\xc3\xa8", u"\u00e9");
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Check(u"%.0s", "\xc3\xa9", u"");
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Check(u"%.3s", "\xc3\xa9", u"\u00e9");
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Check(u"%s", "\xc3\xa9\xc3\xa8", u"\u00e9\u00e8");
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Check(u"%.2s", "abcd", u"ab");
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Check(u"%4.2s", "\xc3\xa9\xc3\xa8", u" \u00e9\u00e8");
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Check(u"%-4.2s", "\xc3\xa9\xc3\xa8", u"\u00e9\u00e8 ");
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Check(u"%.2s", "\xf0\x9f\x98\x80x", u"\U0001f600");
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Check(u"%.1s", "\xf0\x9f\x98\x80x", u"");
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Check(u"%.3s", "\xf0\x9f\x98\x80x", u"\U0001f600x");
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}
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