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Make gdtoa less tunable (#104)

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The -fno-math-errno flag shouldn't impact libraries since it's mostly
intended for permitting the compiler to generate sqrt() instructions.
This commit is contained in:
Justine Tunney 2021-03-07 16:34:16 -08:00
parent 8a6ac6dd63
commit a8945714e8
8 changed files with 485 additions and 124 deletions
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15
test/libc/fmt/strtoimax_test.c
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@ -17,9 +17,9 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/bits.h"
#include "libc/errno.h"
#include "libc/fmt/conv.h"
#include "libc/testlib/testlib.h"
#include "libc/errno.h"
TEST(strtoimax, testZero) {
EXPECT_EQ(0, strtoimax("0", NULL, 0));
@ -60,15 +60,14 @@ TEST(strtoimax, testOutsideLimit) {
strtoimax("0x80000000000000000000000000000000", NULL, 0));
EXPECT_EQ(ERANGE, errno);
errno = 0;
EXPECT_EQ(
((uintmax_t)0x8000000000000000) << 64 | 0x0000000000000000,
strtoimax("-0x80000000000000000000000000000001", NULL, 0));
EXPECT_EQ(((uintmax_t)0x8000000000000000) << 64 | 0x0000000000000000,
strtoimax("-0x80000000000000000000000000000001", NULL, 0));
EXPECT_EQ(ERANGE, errno);
}
TEST(strtoul, neghex) {
errno = 0;
ASSERT_EQ(-16, (long) strtoul("0xfffffffffffffff0", NULL, 0));
ASSERT_EQ(-16, (long)strtoul("0xfffffffffffffff0", NULL, 0));
EXPECT_EQ(0, errno);
}
@ -79,4 +78,10 @@ TEST(strtol, testOutsideLimit) {
errno = 0;
EXPECT_EQ(0x8000000000000000, strtol("-0x8000000000000001", NULL, 0));
EXPECT_EQ(ERANGE, errno);
errno = 0;
EXPECT_EQ(0x8000000000000001, strtol("-9223372036854775807", NULL, 0));
EXPECT_EQ(0, errno);
errno = 0;
EXPECT_EQ(0x8000000000000000, strtol("-9223372036854775808", NULL, 0));
EXPECT_EQ(0, errno);
}