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Set errno when out of range in strtoimax (#111)

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Alison Winters 2021-03-07 14:38:56 -08:00 • committed by GitHub
parent f5da4efcaf
commit 8a6ac6dd63
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5 changed files with 29 additions and 5 deletions
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14
test/libc/fmt/strtoimax_test.c
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@ -53,9 +53,17 @@ TEST(strtoimax, testLimits) {
strtoimax("0x7fffffffffffffffffffffffffffffff", NULL, 0));
}
TEST(strtoimax, testTwosBane) {
EXPECT_EQ(((uintmax_t)0x8000000000000000) << 64 | 0x0000000000000000,
strtoimax("0x80000000000000000000000000000000", NULL, 0));
TEST(strtoimax, testOutsideLimit) {
errno = 0;
EXPECT_EQ(
((uintmax_t)0x7fffffffffffffff) << 64 | (uintmax_t)0xffffffffffffffff,
strtoimax("0x80000000000000000000000000000000", NULL, 0));
EXPECT_EQ(ERANGE, errno);
errno = 0;
EXPECT_EQ(
((uintmax_t)0x8000000000000000) << 64 | 0x0000000000000000,
strtoimax("-0x80000000000000000000000000000001", NULL, 0));
EXPECT_EQ(ERANGE, errno);
}
TEST(strtoul, neghex) {