164 lines
9.1 KiB
C++
164 lines
9.1 KiB
C++
#include "prx/libc/include/general/VabiMacros.hpp"
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#include <cerrno>
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#include <cstddef>
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#include <cstdint>
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#include <cstdio>
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#include <cstring>
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#include <limits>
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#include <stdexcept>
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#include <string>
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extern "C" {
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std::uint64_t APS5_VABI _WStoul_nid_postfix(const char16_t*, char16_t**, int);
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int APS5_VABI _Iswctype_nid_postfix(std::uint32_t, std::uint64_t);
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int APS5_VABI swscanf_s_nid_postfix(const char16_t*, const char16_t*, ...);
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int APS5_VABI iswalnum_nid_postfix(std::uint32_t);
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int APS5_VABI iswalpha_nid_postfix(std::uint32_t);
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int APS5_VABI iswcntrl_nid_postfix(std::uint32_t);
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int APS5_VABI iswdigit_nid_postfix(std::uint32_t);
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int APS5_VABI iswgraph_nid_postfix(std::uint32_t);
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int APS5_VABI iswlower_nid_postfix(std::uint32_t);
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int APS5_VABI iswprint_nid_postfix(std::uint32_t);
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int APS5_VABI iswpunct_nid_postfix(std::uint32_t);
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int APS5_VABI iswspace_nid_postfix(std::uint32_t);
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int APS5_VABI iswupper_nid_postfix(std::uint32_t);
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int APS5_VABI iswxdigit_nid_postfix(std::uint32_t);
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int APS5_VABI iswblank_nid_postfix(std::uint32_t);
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}
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static int failures = 0;
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static void Require(bool condition, const char* message) {
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if (!condition) {
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std::fprintf(stderr, "%s\n", message);
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++failures;
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}
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}
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template<typename TCall> static bool Throws(TCall call) {
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try {
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call();
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} catch (const std::exception&) {
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return true;
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}
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return false;
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}
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static void CheckStoul(const char16_t* text, int base, std::uint64_t value, std::size_t consumed, int error, const char* message) {
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char16_t* end = nullptr;
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errno = 0;
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const std::uint64_t result = _WStoul_nid_postfix(text, &end, base);
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const int saved = errno;
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if (result != value || end != text + consumed || saved != error) {
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std::fprintf(stderr, "_WStoul %s: value %llu, consumed %lld, errno %d\n", message,
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static_cast<unsigned long long>(result), static_cast<long long>(end - text), saved);
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++failures;
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}
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}
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static void CheckStoul() {
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constexpr std::uint64_t max = std::numeric_limits<std::uint64_t>::max();
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CheckStoul(u" 4294967296", 10, 4294967296ULL, 12, 0, "keeps 64 bits");
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CheckStoul(u"18446744073709551615", 10, max, 20, 0, "maximum");
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CheckStoul(u"18446744073709551616", 10, max, 20, ERANGE, "overflow");
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CheckStoul(u"-1", 10, max, 2, 0, "negation");
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CheckStoul(u"\t+7xyz", 10, 7, 3, 0, "stops at a non-digit");
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CheckStoul(u"0x1F", 16, 31, 4, 0, "hex prefix with base 16");
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CheckStoul(u"0x1f", 0, 31, 4, 0, "hex prefix with base 0");
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CheckStoul(u"017", 0, 15, 3, 0, "octal with base 0");
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CheckStoul(u"z", 36, 35, 1, 0, "base 36");
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CheckStoul(u"0b1", 0, 0, 1, 0, "no binary prefix");
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CheckStoul(u"0xg", 16, 0, 1, 0, "prefix without digits");
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CheckStoul(u"12é3", 10, 12, 2, 0, "stops at a non-ASCII unit");
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CheckStoul(u" 5", 10, 0, 0, 0, "non-ASCII space is not skipped");
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CheckStoul(u"", 10, 0, 0, 0, "empty string");
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Require(_WStoul_nid_postfix(u"9", nullptr, 10) == 9, "_WStoul accepts a null end pointer");
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Require(Throws([] { _WStoul_nid_postfix(u"1", nullptr, 1); }), "_WStoul throws for base 1");
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Require(Throws([] { _WStoul_nid_postfix(u"1", nullptr, 37); }), "_WStoul throws for base 37");
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}
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static void CheckClassification() {
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int (APS5_VABI* const classes[])(std::uint32_t) = {
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iswalnum_nid_postfix, iswalpha_nid_postfix, iswcntrl_nid_postfix, iswdigit_nid_postfix,
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iswgraph_nid_postfix, iswlower_nid_postfix, iswprint_nid_postfix, iswpunct_nid_postfix,
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iswspace_nid_postfix, iswupper_nid_postfix, iswxdigit_nid_postfix, iswblank_nid_postfix,
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};
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for (std::uint64_t type = 1; type <= 12; ++type) {
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for (std::uint32_t c = 0; c < 0x300; ++c) {
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if ((_Iswctype_nid_postfix(c, type) != 0) != (classes[type - 1](c) != 0)) {
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std::fprintf(stderr, "_Iswctype(%#x, %llu) differs from its isw function\n", c, static_cast<unsigned long long>(type));
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++failures;
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}
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}
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Require(_Iswctype_nid_postfix(0xffffffffu, type) == 0, "_Iswctype is false for WEOF");
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}
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Require(_Iswctype_nid_postfix(u'A', 2) != 0 && _Iswctype_nid_postfix(u'1', 2) == 0, "_Iswctype alpha");
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Require(_Iswctype_nid_postfix(u'7', 4) != 0 && _Iswctype_nid_postfix(u'f', 11) != 0, "_Iswctype digit and xdigit");
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Require(_Iswctype_nid_postfix(u'\t', 12) != 0 && _Iswctype_nid_postfix(u'\n', 12) == 0, "_Iswctype blank");
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Require(_Iswctype_nid_postfix(u'\n', 9) != 0 && _Iswctype_nid_postfix(u' ', 5) == 0, "_Iswctype space and graph");
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Require(_Iswctype_nid_postfix(u'a', 6) != 0 && _Iswctype_nid_postfix(u'a', 10) == 0, "_Iswctype lower and upper");
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Require(_Iswctype_nid_postfix(0x7f, 3) != 0 && _Iswctype_nid_postfix(u'!', 8) != 0, "_Iswctype cntrl and punct");
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Require(_Iswctype_nid_postfix(0xe9, 2) == 0 && _Iswctype_nid_postfix(0x3042, 1) == 0, "_Iswctype C locale has no non-ASCII letters");
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Require(Throws([] { _Iswctype_nid_postfix(u'a', 0); }), "_Iswctype throws for class 0");
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Require(Throws([] { _Iswctype_nid_postfix(u'a', 13); }), "_Iswctype throws for class 13");
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Require(Throws([] { _Iswctype_nid_postfix(u'a', 0x100); }), "_Iswctype throws for a rune mask");
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}
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static void CheckScan() {
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int first = 0;
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int second = 0;
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Require(swscanf_s_nid_postfix(u" 42 -7", u"%d%d", &first, &second) == 2 && first == 42 && second == -7, "%d");
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Require(swscanf_s_nid_postfix(u"x=0x1f", u"x=%i", &first) == 1 && first == 31, "%i with a hex prefix");
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Require(swscanf_s_nid_postfix(u"1 2", u"%*d%d", &first) == 1 && first == 2, "suppressed %d");
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Require(swscanf_s_nid_postfix(u"12345", u"%3d%d", &first, &second) == 2 && first == 123 && second == 45, "%d width");
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std::int64_t wide = 0;
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Require(swscanf_s_nid_postfix(u"5000000000", u"%ld", &wide) == 1 && wide == 5000000000LL, "%ld is 64-bit");
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short half = 0;
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Require(swscanf_s_nid_postfix(u"-2", u"%hd", &half) == 1 && half == -2, "%hd");
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unsigned value = 0;
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Require(swscanf_s_nid_postfix(u"0xg", u"%x", &value) == 0, "%x prefix without digits is a matching failure");
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char16_t text[6] = {u'?'};
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Require(swscanf_s_nid_postfix(u"hello world", u"%ls", text, std::size_t{6}) == 1 && std::u16string(text) == u"hello", "%ls fits");
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char16_t small[5] = {u'?', u'?', u'?', u'?', u'?'};
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Require(swscanf_s_nid_postfix(u"hello", u"%ls", small, std::size_t{5}) == 0 && small[0] == 0, "%ls too small");
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Require(swscanf_s_nid_postfix(u"7 hello", u"%d%ls", &first, small, std::size_t{5}) == 1 && first == 7, "%ls too small after a conversion");
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char narrow[4] = {};
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Require(swscanf_s_nid_postfix(u"abc def", u"%s", narrow, std::size_t{4}) == 1 && std::strcmp(narrow, "abc") == 0, "%s");
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char16_t pair[3] = {u'?', u'?', u'?'};
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Require(swscanf_s_nid_postfix(u"xyz", u"%2lc", pair, std::size_t{2}) == 1 && pair[0] == u'x' && pair[1] == u'y' && pair[2] == u'?', "%2lc");
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Require(swscanf_s_nid_postfix(u"xyz", u"%2lc", pair, std::size_t{1}) == 0, "%2lc too small");
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Require(swscanf_s_nid_postfix(u"x", u"%2lc", pair, std::size_t{2}) == 0, "%2lc short input");
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Require(swscanf_s_nid_postfix(u"cab12", u"%l[abc]%d", text, std::size_t{6}, &first) == 2 && std::u16string(text) == u"cab" && first == 12, "%l[");
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Require(swscanf_s_nid_postfix(u"été!", u"%l[^!]", text, std::size_t{6}) == 1 && std::u16string(text) == u"été", "%l[^");
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std::int64_t count = -1;
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Require(swscanf_s_nid_postfix(u" 12 ab", u"%d %ln", &first, &count) == 1 && count == 4, "%ln");
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double real = 0;
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Require(swscanf_s_nid_postfix(u"1.5e3", u"%lf", &real) == 1 && real == 1500.0, "%lf");
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Require(swscanf_s_nid_postfix(u"1e+x", u"%lf", &real) == 0, "%lf incomplete exponent is a matching failure");
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long double extended = 0;
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Require(swscanf_s_nid_postfix(u"2.25", u"%Lf", &extended) == 1 && extended == 2.25L, "%Lf");
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float single = 0;
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Require(swscanf_s_nid_postfix(u"-inf", u"%f", &single) == 1 && single == -std::numeric_limits<float>::infinity(), "%f infinity");
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Require(swscanf_s_nid_postfix(u"a", u"b%d", &first) == 0, "literal mismatch is a matching failure");
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Require(swscanf_s_nid_postfix(u"", u"%d", &first) == -1, "empty input is an input failure");
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Require(swscanf_s_nid_postfix(u" ", u"%ls", text, std::size_t{6}) == -1, "white space only is an input failure");
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Require(swscanf_s_nid_postfix(u"5", u"%d%d", &first, &second) == 1, "input failure after a conversion");
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Require(swscanf_s_nid_postfix(u"5", u"%d", static_cast<int*>(nullptr)) == -1, "null %d argument");
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Require(swscanf_s_nid_postfix(u"5 abc", u"%d%ls", &first, static_cast<char16_t*>(nullptr), std::size_t{4}) == -1, "null %ls argument");
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Require(swscanf_s_nid_postfix(nullptr, u"%d", &first) == -1, "null buffer");
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Require(swscanf_s_nid_postfix(u"5", nullptr) == -1, "null format");
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Require(Throws([&] { swscanf_s_nid_postfix(u"abc", u"%l[a-c]", text, std::size_t{6}); }), "scanset range throws");
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Require(Throws([&] { swscanf_s_nid_postfix(u"5", u"%Ld", &wide); }), "%Ld throws");
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Require(Throws([&] { swscanf_s_nid_postfix(u"Ā", u"%s", narrow, std::size_t{4}); }), "unconvertible narrow %s throws");
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}
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int main() {
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CheckStoul();
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CheckClassification();
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CheckScan();
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return failures == 0 ? 0 : 1;
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}
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