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Get GNU GMP test suite fully passing

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- Fix stdio fmemopen() buffer behaviors
- Fix scanf() to return EOF when appropriate
- Prefer fseek/ftell names over fseeko/ftello
- Ensure locale field is always set in the TIB
- Fix recent regression in vfprintf() return count
- Make %n directive in scanf() have standard behavior
This commit is contained in:
Justine Tunney 2023-08-21 09:00:40 -07:00
parent 755ae64e73
commit 63a1636e1f
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GPG key ID: BE714B4575D6E328
20 changed files with 228 additions and 51 deletions
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28
test/libc/stdio/sscanf_test.c
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@ -42,7 +42,6 @@ TEST(sscanf, testMultiple) {
TEST(sscanf, testDecimal) {
EXPECT_EQ(123, sscanf1("123", "%d"));
EXPECT_EQ(123, sscanf1("123", "%n"));
EXPECT_EQ(123, sscanf1("123", "%u"));
EXPECT_EQ((uint32_t)-123, sscanf1("-123", "%d"));
}
@ -258,3 +257,30 @@ TEST(sscanf, test0) {
ASSERT_EQ(sscanf("0", "%b", &v), 1);
ASSERT_EQ(v, 0);
}
TEST(sscanf, n) {
int x, y;
EXPECT_EQ(1, sscanf("7 2 3 4", "%d%n", &x, &y));
EXPECT_EQ(7, x);
EXPECT_EQ(1, y);
}
TEST(sscanf, eofForNoMatching) {
int y = 666;
char x[8] = "hi";
EXPECT_EQ(-1, sscanf(" ", "%s%n", &x, &y));
EXPECT_STREQ("hi", x);
EXPECT_EQ(666, y);
}
TEST(sscanf, eofConditions) {
int x = 666;
EXPECT_EQ(-1, sscanf("", "%d", &x));
EXPECT_EQ(666, x);
EXPECT_EQ(-1, sscanf(" ", "%d", &x));
EXPECT_EQ(666, x);
EXPECT_EQ(-1, sscanf("123", "%*d%d", &x));
EXPECT_EQ(666, x);
EXPECT_EQ(-1, sscanf("123", "%*d%n", &x));
EXPECT_EQ(666, x);
}