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Fix int parsing with base 2 and 16 (#107)

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Alison Winters 2021-03-06 21:12:32 -08:00 committed by GitHub
parent fb7b7c6e21
commit 813e11b90b
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 19 additions and 6 deletions
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4
libc/fmt/strtoimax.c
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@ -77,8 +77,8 @@ intmax_t strtoimax(const char *s, char **endptr, int base) {
}
} else if (*s == '0') {
++s;
if (base == 2 && *s == 'b' && *s == 'B') ++s;
if (base == 16 && *s == 'x' && *s == 'X') ++s;
if (base == 2 && (*s == 'b' || *s == 'B')) ++s;
if (base == 16 && (*s == 'x' || *s == 'X')) ++s;
}
for (;;) {

8
libc/fmt/strtoumax.c
View file

@ -51,10 +51,10 @@ uintmax_t strtoumax(const char *s, char **endptr, int base) {
} else {
base = 10;
}
} else if (*s == '0') {
++s;
if (base == 2 && *s == 'b' && *s == 'B') ++s;
if (base == 16 && *s == 'x' && *s == 'X') ++s;
} else if (*p == '0') {
++p;
if (base == 2 && (*p == 'b' || *p == 'B')) ++p;
if (base == 16 && (*p == 'x' || *p == 'X')) ++p;
}
for (;;) {

7
test/libc/fmt/strtoimax_test.c
View file

@ -30,10 +30,17 @@ TEST(strtoimax, testDecimal) {
TEST(strtoimax, testHex) {
EXPECT_EQ(-255, strtoimax("-0xff", NULL, 0));
EXPECT_EQ(255, strtoimax("0xff", NULL, 16));
}
TEST(strtoimax, testOctal) {
EXPECT_EQ(-123, strtoimax("-0173", NULL, 0));
EXPECT_EQ(123, strtoimax("0173", NULL, 8));
}
TEST(strtoimax, testBinary) {
EXPECT_EQ(-42, strtoimax("-0b101010", NULL, 0));
EXPECT_EQ(42, strtoimax("0b101010", NULL, 2));
}
TEST(strtoimax, testLimits) {

6
test/libc/fmt/strtoumax_test.c
View file

@ -29,9 +29,15 @@ TEST(strtoumax, testDecimal) {
}
TEST(strtoumax, testHex) {
EXPECT_EQ(255, strtoumax("0xff", NULL, 0));
EXPECT_EQ(255, strtoumax("0xff", NULL, 16));
}
TEST(strtoumax, testOctal) {
EXPECT_EQ(123, strtoumax("0173", NULL, 0));
EXPECT_EQ(123, strtoumax("0173", NULL, 8));
}
TEST(strtoumax, testBinary) {
EXPECT_EQ(42, strtoumax("0b101010", NULL, 0));
EXPECT_EQ(42, strtoumax("0b101010", NULL, 2));
}
TEST(strtoumax, testMaximum) {