Source and destination overlap in memcpy, cstr_cat (tccpp.c:322)

This code is from "Improve hash performance"

seyko committed 10 years ago

Commit 8db7a0f1 parent d25f67e1 file · +1 −1Browse files

Unified · Split

@@ -319,7 +319,7 @@ ST_FUNC void cstr_cat(CString cstr, const char str, int len) · 318 unmodified lines
319	size = cstr->size + len;	319	size = cstr->size + len;
320	if (size > cstr->size_allocated)	320	if (size > cstr->size_allocated)
321	cstr_realloc(cstr, size);	321	cstr_realloc(cstr, size);
322	memcpy(((unsigned char *)cstr->data) + cstr->size, str, len);	322	memmove(((unsigned char *)cstr->data) + cstr->size, str, len);
323	cstr->size = size;	323	cstr->size = size;
324	}	324	}
325		325