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Refactor FP formatting

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This commit is contained in:
Victor Zverovich
2021-09-26 09:00:09 -07:00
parent 027fcaf05e
commit e1bd6cc913
2 changed files with 93 additions and 115 deletions
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test/format-impl-test.cc
+7 -10
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@@ -278,25 +278,22 @@ TEST(fp_test, get_round_direction) {
}
TEST(fp_test, fixed_handler) {
struct handler : fmt::detail::fixed_handler {
struct handler : fmt::detail::gen_digits_handler {
char buffer[10];
handler(int prec = 0) : fmt::detail::fixed_handler() {
handler(int prec = 0) : fmt::detail::gen_digits_handler() {
buf = buffer;
precision = prec;
}
};
int exp = 0;
handler().on_digit('0', 100, 99, 0, exp, false);
EXPECT_THROW(handler().on_digit('0', 100, 100, 0, exp, false),
assertion_failure);
handler().on_digit('0', 100, 99, 0, false);
EXPECT_THROW(handler().on_digit('0', 100, 100, 0, false), assertion_failure);
namespace digits = fmt::detail::digits;
EXPECT_EQ(handler(1).on_digit('0', 100, 10, 10, exp, false), digits::error);
EXPECT_EQ(handler(1).on_digit('0', 100, 10, 10, false), digits::error);
// Check that divisor - error doesn't overflow.
EXPECT_EQ(handler(1).on_digit('0', 100, 10, 101, exp, false), digits::error);
EXPECT_EQ(handler(1).on_digit('0', 100, 10, 101, false), digits::error);
// Check that 2 * error doesn't overflow.
uint64_t max = max_value<uint64_t>();
EXPECT_EQ(handler(1).on_digit('0', max, 10, max - 1, exp, false),
digits::error);
EXPECT_EQ(handler(1).on_digit('0', max, 10, max - 1, false), digits::error);
}
TEST(fp_test, grisu_format_compiles_with_on_ieee_double) {