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Fix GCC6 compilation error in count_digits

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GCC6 appears to need the explicit return type there.

Otherwise, it fails with:

> error: use of 'fmt::v9::detail::count_digits(UInt)::<lambda(UInt)> [with int BITS = 4; UInt = long long unsigned int]' before deduction of 'auto'
This commit is contained in:
Gleb Mazovetskiy 2023-03-12 10:43:12 +00:00
parent a33701196a
commit 8455bb8a00
1 changed files with 1 additions and 1 deletions
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2
include/fmt/format.h
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@ -1107,7 +1107,7 @@ FMT_CONSTEXPR auto count_digits(UInt n) -> int {
return (FMT_BUILTIN_CLZ(static_cast<uint32_t>(n) | 1) ^ 31) / BITS + 1; return (FMT_BUILTIN_CLZ(static_cast<uint32_t>(n) | 1) ^ 31) / BITS + 1;
#endif #endif
// Lambda avoids unreachable code warnings from NVHPC. // Lambda avoids unreachable code warnings from NVHPC.
return [](UInt m) { return [](UInt m) -> int {
int num_digits = 0; int num_digits = 0;
do { do {
++num_digits; ++num_digits;