[libc-commits] [libc] [libc][NFC] Rename `MANTISSA_WIDTH` in `FRACTION_BITS` (PR #75489)

[Guillaume Chatelet via libc-commits]

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@@ -56,8 +56,7 @@ template <typename T> LIBC_INLINE cpp::string str(fputil::FPBits<T> x) {
   const details::ZeroPaddedHexFmt<uint16_t> exponent(x.get_biased_exponent());
   s += exponent.view();
 
-  if constexpr (cpp::is_same_v<T, long double> &&
-                fputil::FloatProperties<long double>::MANTISSA_WIDTH == 63) {
+  if constexpr (fputil::get_fp_type<T>() == fputil::FPType::X86_Binary80) {
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gchatelet wrote:

It is now easier to test for the underlying representation of `float`, `double` and `long double`.

https://github.com/llvm/llvm-project/pull/75489