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Inline padding shifts

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This commit is contained in:
Victor Zverovich
2021-09-06 16:26:50 -07:00
parent 894faf3fed
commit e3ebf366a6
2 changed files with 1 additions and 9 deletions
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7
include/fmt/format.h
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@@ -916,10 +916,6 @@ template <typename T = void> struct basic_data {
FMT_API static constexpr const char signs[4] = {0, '-', '+', ' '};
FMT_API static constexpr const unsigned prefixes[4] = {0, 0, 0x1000000u | '+',
0x1000000u | ' '};
FMT_API static constexpr const char left_padding_shifts[5] = {31, 31, 0, 1,
0};
FMT_API static constexpr const char right_padding_shifts[5] = {0, 31, 0, 1,
0};
};
#ifdef FMT_SHARED
@@ -1328,8 +1324,7 @@ FMT_CONSTEXPR auto write_padded(OutputIt out,
static_assert(align == align::left || align == align::right, "");
unsigned spec_width = to_unsigned(specs.width);
size_t padding = spec_width > width ? spec_width - width : 0;
auto* shifts = align == align::left ? data::left_padding_shifts
: data::right_padding_shifts;
auto* shifts = align == align::left ? "\x1f\x1f\x00\x01" : "\x00\x1f\x00\x01";
size_t left_padding = padding >> shifts[specs.align];
size_t right_padding = padding - left_padding;
auto it = reserve(out, size + padding * specs.fill.size());