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[liba] Proper testing of type signedness

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Change-Id: I89ddc116ff33c384ba916f8f52e20347c49483f0
This commit is contained in:
Romain Goyet
2017-07-30 11:52:42 +02:00
committed by Romain Goyet
parent 4e08d520da
commit 750b51dd2f
1 changed files with 11 additions and 10 deletions
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21
liba/test/stdint.c
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@@ -14,16 +14,17 @@ QUIZ_CASE(liba_stdint_size) {
assert(sizeof(int64_t) == 8);
}
#define assert_signed(type) assert((type)-1 < 0)
#define assert_unsigned(type) assert((type)-1 >= 0)
QUIZ_CASE(liba_stdint_signedness) {
int8_t i8 = -1;
assert(i8 == -1);
assert_signed(int8_t);
assert_signed(int16_t);
assert_signed(int32_t);
assert_signed(int64_t);
int16_t i16 = -1;
assert(i16 == -1);
int32_t i32 = -1;
assert(i32 == -1);
int64_t i64 = -1;
assert(i64 == -1);
assert_unsigned(uint8_t);
assert_unsigned(uint16_t);
assert_unsigned(uint32_t);
assert_unsigned(uint64_t);
}