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Remove get_cached_power

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This commit is contained in:
Victor Zverovich
2023-05-27 08:45:27 -07:00
parent 171a020c82
commit 0b8404918e
2 changed files with 4 additions and 67 deletions
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37
test/format-impl-test.cc
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@@ -196,43 +196,6 @@ TEST(fp_test, multiply) {
EXPECT_EQ(v.e, 4 + 8 + 64);
}
TEST(fp_test, get_cached_power) {
using limits = std::numeric_limits<double>;
for (auto exp = limits::min_exponent; exp <= limits::max_exponent; ++exp) {
int dec_exp = 0;
auto power = fmt::detail::get_cached_power(exp, dec_exp);
bigint exact, cache(power.f);
if (dec_exp >= 0) {
exact.assign_pow10(dec_exp);
if (power.e <= 0)
exact <<= -power.e;
else
cache <<= power.e;
exact.align(cache);
cache.align(exact);
auto exact_str = fmt::to_string(exact);
auto cache_str = fmt::to_string(cache);
EXPECT_EQ(exact_str.size(), cache_str.size());
EXPECT_EQ(exact_str.substr(0, 15), cache_str.substr(0, 15));
int diff = cache_str[15] - exact_str[15];
if (diff == 1)
EXPECT_GT(exact_str[16], '8');
else
EXPECT_EQ(diff, 0);
} else {
cache.assign_pow10(-dec_exp);
cache *= power.f + 1; // Inexact check.
exact = 1;
exact <<= -power.e;
exact.align(cache);
auto exact_str = fmt::to_string(exact);
auto cache_str = fmt::to_string(cache);
EXPECT_EQ(exact_str.size(), cache_str.size());
EXPECT_EQ(exact_str.substr(0, 16), cache_str.substr(0, 16));
}
}
}
TEST(fp_test, dragonbox_max_k) {
using fmt::detail::dragonbox::floor_log10_pow2;
using float_info = fmt::detail::dragonbox::float_info<float>;