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| author | Tavian Barnes <tavianator@tavianator.com> | 2024-03-21 11:52:31 -0400 |
|---|---|---|
| committer | Tavian Barnes <tavianator@tavianator.com> | 2024-03-21 11:52:31 -0400 |
| commit | ef0aef16961508075249a6206dc0e9a9ac27d81c (patch) | |
| tree | cc98d97f828319dfd8979490c678750336feae47 /tests | |
| parent | 54490a29006529f7ceb4dc0514a075f9f4175621 (diff) | |
| download | bfs-ef0aef16961508075249a6206dc0e9a9ac27d81c.tar.xz | |
bit: Check __BYTE_ORDER__ for the native endian
__ORDER_NATIVE_ENDIAN__ is not a thing.
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/bit.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tests/bit.c b/tests/bit.c index 3d66ce3..6548c30 100644 --- a/tests/bit.c +++ b/tests/bit.c @@ -7,6 +7,7 @@ #include "../src/diag.h" #include <limits.h> #include <stdint.h> +#include <string.h> bfs_static_assert(UMAX_WIDTH(0x1) == 1); bfs_static_assert(UMAX_WIDTH(0x3) == 2); @@ -58,6 +59,18 @@ bfs_static_assert(INTMAX_MAX == IWIDTH_MAX(INTMAX_WIDTH)); bool check_bit(void) { bool ret = true; + const char *str = "\x1\x2\x3\x4"; + uint32_t word; + memcpy(&word, str, sizeof(word)); + +#if ENDIAN_NATIVE == ENDIAN_LITTLE + ret &= check_eq(word, 0x04030201); +#elif ENDIAN_NATIVE == ENDIAN_BIG + ret &= check_eq(word, 0x01020304); +#else +# warning "Skipping byte order tests on mixed/unknown-endian machine" +#endif + ret &= check_eq(bswap((uint8_t)0x12), 0x12); ret &= check_eq(bswap((uint16_t)0x1234), 0x3412); ret &= check_eq(bswap((uint32_t)0x12345678), 0x78563412); |