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-rw-r--r--absl/strings/internal/str_format/float_conversion.cc12
1 files changed, 5 insertions, 7 deletions
diff --git a/absl/strings/internal/str_format/float_conversion.cc b/absl/strings/internal/str_format/float_conversion.cc
index 2b1fd8cb..b1c40684 100644
--- a/absl/strings/internal/str_format/float_conversion.cc
+++ b/absl/strings/internal/str_format/float_conversion.cc
@@ -29,6 +29,7 @@
#include "absl/meta/type_traits.h"
#include "absl/numeric/bits.h"
#include "absl/numeric/int128.h"
+#include "absl/numeric/internal/representation.h"
#include "absl/strings/numbers.h"
#include "absl/types/optional.h"
#include "absl/types/span.h"
@@ -39,6 +40,8 @@ namespace str_format_internal {
namespace {
+using ::absl::numeric_internal::IsDoubleDouble;
+
// The code below wants to avoid heap allocations.
// To do so it needs to allocate memory on the stack.
// `StackArray` will allocate memory on the stack in the form of a uint32_t
@@ -112,13 +115,6 @@ inline uint64_t DivideBy10WithCarry(uint64_t *v, uint64_t carry) {
return next_carry % divisor;
}
-constexpr bool IsDoubleDouble() {
- // This is the `double-double` representation of `long double`.
- // We do not handle it natively. Fallback to snprintf.
- return std::numeric_limits<long double>::digits ==
- 2 * std::numeric_limits<double>::digits;
-}
-
using MaxFloatType =
typename std::conditional<IsDoubleDouble(), double, long double>::type;
@@ -1404,6 +1400,8 @@ bool FloatToSink(const Float v, const FormatConversionSpecImpl &conv,
bool ConvertFloatImpl(long double v, const FormatConversionSpecImpl &conv,
FormatSinkImpl *sink) {
if (IsDoubleDouble()) {
+ // This is the `double-double` representation of `long double`. We do not
+ // handle it natively. Fallback to snprintf.
return FallbackToSnprintf(v, conv, sink);
}