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Improve assertions.

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This commit is contained in:
Mike Pall
2020-06-13 00:52:54 +02:00
parent 8b55054473
commit 8ae5170cdc
71 changed files with 1363 additions and 927 deletions
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5
src/lj_str.c
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@@ -41,8 +41,9 @@ int32_t LJ_FASTCALL lj_str_cmp(GCstr *a, GCstr *b)
static LJ_AINLINE int str_fastcmp(const char *a, const char *b, MSize len)
{
MSize i = 0;
lua_assert(len > 0);
lua_assert((((uintptr_t)a+len-1) & (LJ_PAGESIZE-1)) <= LJ_PAGESIZE-4);
lj_assertX(len > 0, "fast string compare with zero length");
lj_assertX((((uintptr_t)a+len-1) & (LJ_PAGESIZE-1)) <= LJ_PAGESIZE-4,
"fast string compare crossing page boundary");
do { /* Note: innocuous access up to end of string + 3. */
uint32_t v = lj_getu32(a+i) ^ *(const uint32_t *)(b+i);
if (v) {