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32-bit clangcl appears to be ridiculous.

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This commit is contained in:
Daniel Lemire 2022-11-16 14:59:03 -05:00
parent d225059873
commit 559b89d34d
1 changed files with 23 additions and 2 deletions
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25
tests/basictest.cpp
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@ -104,27 +104,46 @@ TEST_CASE("parse_zero") {
// If this function fails, we may be left in a non-standard rounding state. // If this function fails, we may be left in a non-standard rounding state.
// //
const char * zero = "0"; const char * zero = "0";
uint64_t float64_parsed;
double f = 0; double f = 0;
::memcpy(&float64_parsed, &f, sizeof(f));
CHECK(float64_parsed == 0);
fesetround(FE_UPWARD); fesetround(FE_UPWARD);
auto r1 = fast_float::from_chars(zero, zero + 1, f); auto r1 = fast_float::from_chars(zero, zero + 1, f);
CHECK(r1.ec == std::errc()); CHECK(r1.ec == std::errc());
std::cout << "FE_UPWARD parsed zero as " << iHexAndDec(f) << std::endl; std::cout << "FE_UPWARD parsed zero as " << iHexAndDec(f) << std::endl;
CHECK(f == 0); CHECK(f == 0);
::memcpy(&float64_parsed, &f, sizeof(f));
std::cout << "double as uint64_t is " << float64_parsed << std::endl;
CHECK(float64_parsed == 0);
fesetround(FE_TOWARDZERO); fesetround(FE_TOWARDZERO);
auto r2 = fast_float::from_chars(zero, zero + 1, f); auto r2 = fast_float::from_chars(zero, zero + 1, f);
CHECK(r2.ec == std::errc()); CHECK(r2.ec == std::errc());
std::cout << "FE_TOWARDZERO parsed zero as " << iHexAndDec(f) << std::endl; std::cout << "FE_TOWARDZERO parsed zero as " << iHexAndDec(f) << std::endl;
CHECK(f == 0); CHECK(f == 0);
::memcpy(&float64_parsed, &f, sizeof(f));
std::cout << "double as uint64_t is " << float64_parsed << std::endl;
CHECK(float64_parsed == 0);
fesetround(FE_DOWNWARD); fesetround(FE_DOWNWARD);
auto r3 = fast_float::from_chars(zero, zero + 1, f); auto r3 = fast_float::from_chars(zero, zero + 1, f);
CHECK(r3.ec == std::errc()); CHECK(r3.ec == std::errc());
std::cout << "FE_DOWNWARD parsed zero as " << iHexAndDec(f) << std::endl; std::cout << "FE_DOWNWARD parsed zero as " << iHexAndDec(f) << std::endl;
CHECK(f == 0); CHECK(f == 0);
::memcpy(&float64_parsed, &f, sizeof(f));
std::cout << "double as uint64_t is " << float64_parsed << std::endl;
CHECK(float64_parsed == 0);
fesetround(FE_TONEAREST); fesetround(FE_TONEAREST);
auto r4 = fast_float::from_chars(zero, zero + 1, f); auto r4 = fast_float::from_chars(zero, zero + 1, f);
CHECK(r4.ec == std::errc()); CHECK(r4.ec == std::errc());
std::cout << "FE_TONEAREST parsed zero as " << iHexAndDec(f) << std::endl; std::cout << "FE_TONEAREST parsed zero as " << iHexAndDec(f) << std::endl;
CHECK(f == 0); CHECK(f == 0);
::memcpy(&float64_parsed, &f, sizeof(f));
std::cout << "double as uint64_t is " << float64_parsed << std::endl;
CHECK(float64_parsed == 0);
} }
@ -171,14 +190,16 @@ bool check_file(std::string file_name) {
// Compare with expected results // Compare with expected results
if (float32_parsed != float32) { if (float32_parsed != float32) {
std::cout << "bad 32 " << str << std::endl; std::cout << "bad 32 " << str << std::endl;
std::cout << "parsed = " << iHexAndDec(float32_parsed) << ", expectd = " << iHexAndDec(float32) << std::endl; std::cout << "parsed as " << iHexAndDec(parsed_32) << std::endl;
std::cout << "as raw uint32_t, parsed = " << float32_parsed << ", expected = " << float32 << std::endl;
std::cout << "fesetround: " << round_name(d) << std::endl; std::cout << "fesetround: " << round_name(d) << std::endl;
fesetround(FE_TONEAREST); fesetround(FE_TONEAREST);
return false; return false;
} }
if (float64_parsed != float64) { if (float64_parsed != float64) {
std::cout << "bad 64 " << str << std::endl; std::cout << "bad 64 " << str << std::endl;
std::cout << "parsed = " << iHexAndDec(float64_parsed) << ", expectd = " << iHexAndDec(float64) << std::endl; std::cout << "parsed as " << iHexAndDec(parsed_64) << std::endl;
std::cout << "as raw uint64_t, parsed = " << float64_parsed << ", expected = " << float64 << std::endl;
std::cout << "fesetround: " << round_name(d) << std::endl; std::cout << "fesetround: " << round_name(d) << std::endl;
fesetround(FE_TONEAREST); fesetround(FE_TONEAREST);
return false; return false;