git-compat-util: introduce ASSERT() macro
Create a ASSERT() macro which is similar to assert(), but will not be compiled out when NDEBUG is defined, and is thus safe to use even if its argument has side-effects. We will use this new macro in a subsequent commit to convert a few existing assert() invocations to ASSERT(). In particular, we'll convert the handful of invocations which cannot be proven to be free of side effects with a simple compiler/linker hack. Signed-off-by: Elijah Newren <newren@gmail.com> Acked-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Elijah Newren committed
Mar 19, 2025 at 16:22 UTC
07fbc15c20c2fb447204869071b0576ab8892fa4
1 file changed
+2
git-compat-util.h
+2
index e123288e8f..d7f3407128 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -1460,6 +1460,8 @@ extern int bug_called_must_BUG;
__attribute__((format (printf, 3, 4))) NORETURN
void BUG_fl(const char *file, int line, const char *fmt, ...);
#define BUG(...) BUG_fl(__FILE__, __LINE__, __VA_ARGS__)
+/* ASSERT: like assert(), but won't be compiled out with NDEBUG */
+#define ASSERT(a) if (!(a)) BUG("Assertion `" #a "' failed.")
__attribute__((format (printf, 3, 4)))
void bug_fl(const char *file, int line, const char *fmt, ...);
#define bug(...) bug_fl(__FILE__, __LINE__, __VA_ARGS__)