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Refactor floating-point formatting

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This commit is contained in:
Victor Zverovich
2019-11-22 11:15:09 -08:00
parent 9108b25da9
commit 7395472dde
4 changed files with 26 additions and 32 deletions
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12
include/fmt/format-inl.h
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@@ -1029,12 +1029,12 @@ void fallback_format(Double d, buffer<char>& buf, int& exp10) {
}
}
template <typename Double,
enable_if_t<(sizeof(Double) == sizeof(uint64_t)), int>>
bool grisu_format(Double value, buffer<char>& buf, int precision,
unsigned options, int& exp) {
template <typename Float, enable_if_t<(sizeof(Float) == sizeof(uint64_t)), int>>
bool grisu_format(Float value, int precision, buffer<char>& buf,
float_spec spec, int& exp) {
FMT_ASSERT(value >= 0, "value is negative");
const bool fixed = (options & grisu_options::fixed) != 0;
const bool fixed = spec.format == float_format::fixed;
if (value <= 0) { // <= instead of == to silence a warning.
if (precision <= 0 || !fixed) {
exp = 0;
@@ -1071,7 +1071,7 @@ bool grisu_format(Double value, buffer<char>& buf, int precision,
} else {
fp fp_value;
fp lower, upper; // w^- and w^+ in the Grisu paper.
if ((options & grisu_options::binary32) != 0)
if (spec.binary32)
fp_value.assign_float_with_boundaries(value, lower, upper);
else
fp_value.assign_with_boundaries(value, lower, upper);