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Add an option to allow inf/nan even in json mode

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- Most JSON parsers offer this option too
This commit is contained in:
Maya Warrier 2023-09-14 21:07:22 -04:00
parent ce562d9c65
commit 7b1fc2f95d
2 changed files with 6 additions and 6 deletions
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1
include/fast_float/float_common.h
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@ -20,6 +20,7 @@ enum chars_format {
hex = 1 << 3,
no_infnan = 1 << 4,
json = FASTFLOAT_JSONFMT | fixed | scientific | no_infnan,
json_or_infnan = FASTFLOAT_JSONFMT | fixed | scientific,
general = fixed | scientific
};

11
tests/json_fmt.cpp
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@ -10,16 +10,15 @@
int main()
{
const std::vector<double> expected{ -0.2, 0.02, 0.002, 1., 0. };
const std::vector<std::string> accept{ "-0.2", "0.02", "0.002", "1e+0000", "0e-2" };
const std::vector<std::string> reject{ "-.2", "00.02", "0.e+1", "00.e+1", ".25", "+0.25", "inf", "nan(snan)"};
const auto fmt = fast_float::chars_format::json;
const std::vector<double> expected{ -0.2, 0.02, 0.002, 1., 0., std::numeric_limits<double>::infinity() };
const std::vector<std::string> accept{ "-0.2", "0.02", "0.002", "1e+0000", "0e-2", "inf" };
const std::vector<std::string> reject{ "-.2", "00.02", "0.e+1", "00.e+1", ".25", "+0.25", "inf", "nan(snan)" };
for (std::size_t i = 0; i < accept.size(); ++i)
{
const auto& f = accept[i];
double result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, fmt);
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, fast_float::chars_format::json_or_infnan);
if (answer.ec != std::errc() || result != expected[i]) {
std::cerr << "json fmt rejected valid json " << f << std::endl;
return EXIT_FAILURE;
@ -30,7 +29,7 @@ int main()
{
const auto& f = reject[i];
double result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, fmt);
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, fast_float::chars_format::json);
if (answer.ec == std::errc()) {
std::cerr << "json fmt accepted invalid json " << f << std::endl;
return EXIT_FAILURE;