diff options
| -rw-r--r-- | asl/formatting/format_float.cpp | 12 | ||||
| -rw-r--r-- | todo.txt | 2 |
2 files changed, 12 insertions, 2 deletions
diff --git a/asl/formatting/format_float.cpp b/asl/formatting/format_float.cpp index eca1d92..fb37064 100644 --- a/asl/formatting/format_float.cpp +++ b/asl/formatting/format_float.cpp @@ -19,6 +19,16 @@ static constexpr char kZeros[kZeroCount] = { '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', }; +static constexpr bool is_zero(float x) +{ + return (asl::bit_cast<uint32_t>(x) & 0x7fff'ffff) == 0; +} + +static constexpr bool is_zero(double x) +{ + return (asl::bit_cast<uint64_t>(x) & 0x7fff'ffff'ffff'ffff) == 0; +} + template<asl::is_floating_point T> static void format_float(asl::Formatter& f, T value) { @@ -35,7 +45,7 @@ static void format_float(asl::Formatter& f, T value) return; } - if (value == static_cast<T>(0)) + if (is_zero(value)) { f.write("0"_sv); return; @@ -1 +1 @@ -warning compare with 0 in format_float.cpp + |