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<format>: Alternate form general floating-point width handling #5261

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Merged
StephanTLavavej merged 6 commits into from
Feb 11, 2025
Merged

<format>: Alternate form general floating-point width handling #5261

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8a7e5e8
<format>: Alternate form general floating-point width handling
alexprabhat99 Jan 31, 2025
05e3ae0
added test coverage
alexprabhatbara Feb 1, 2025
86f9cfd
test coverage related changes
alexprabhatbara Feb 1, 2025
33277aa
lexicographic ordering in test.lst
alexprabhatbara Feb 1, 2025
58612d1
Merge branch 'microsoft:main' into main
alexprabhat99 Feb 3, 2025
a8750d8
expanded P0645R10_text_formatting_formatting test
alexprabhatbara Feb 3, 2025
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2 changes: 2 additions & 0 deletions stl/inc/format
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Original file line number Diff line number Diff line change
Expand Up @@ -2145,6 +2145,8 @@ _NODISCARD _OutputIt _Fmt_write(
case 'g':
if (_Precision == -1) {
_Precision = 6;
} else if (_Precision == 0) {
_Precision = 1;
}
_Format = chars_format::general;
break;
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1 change: 1 addition & 0 deletions tests/std/tests/P0645R10_text_formatting_formatting/test.cpp
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Expand Up @@ -835,6 +835,7 @@ void test_float_specs() {
assert(format(STR("{:3}"), Float{0}) == STR(" 0"));
assert(format(STR("{:#9G}"), Float{12.2}) == STR(" 12.2000"));
assert(format(STR("{:#12g}"), Float{1'000'000}) == STR(" 1.00000e+06"));
assert(format(STR("[{:#6.0g}]"), 1.234e-37) == STR("[1.e-37]"));

// Precision
Float value = 1234.52734375;
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