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Simplify remove_trailing_zeros

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Junekey Jeon 2022-02-13 03:36:58 -08:00 committed by Victor Zverovich
parent b348caa9e9
commit c04af4bfc7
1 changed files with 6 additions and 12 deletions
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18
include/fmt/format-inl.h
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@ -1876,12 +1876,9 @@ FMT_INLINE int remove_trailing_zeros(uint64_t& n) noexcept {
int s = 8; int s = 8;
while (true) { while (true) {
auto q = rotr(n32 * mod_inv_25, 2); auto q = rotr(n32 * mod_inv_25, 2);
if (q <= std::numeric_limits<uint32_t>::max() / 100) { if (q > std::numeric_limits<uint32_t>::max() / 100) break;
n32 = q; n32 = q;
s += 2; s += 2;
} else {
break;
}
} }
auto q = rotr(n32 * mod_inv_5, 1); auto q = rotr(n32 * mod_inv_5, 1);
if (q <= std::numeric_limits<uint32_t>::max() / 10) { if (q <= std::numeric_limits<uint32_t>::max() / 10) {
@ -1900,12 +1897,9 @@ FMT_INLINE int remove_trailing_zeros(uint64_t& n) noexcept {
int s = 0; int s = 0;
while (true) { while (true) {
auto q = rotr(n * mod_inv_25, 2); auto q = rotr(n * mod_inv_25, 2);
if (q <= std::numeric_limits<uint64_t>::max() / 100) { if (q > std::numeric_limits<uint64_t>::max() / 100) break;
n = q; n = q;
s += 2; s += 2;
} else {
break;
}
} }
auto q = rotr(n * mod_inv_5, 1); auto q = rotr(n * mod_inv_5, 1);
if (q <= std::numeric_limits<uint64_t>::max() / 10) { if (q <= std::numeric_limits<uint64_t>::max() / 10) {