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-rw-r--r--src/diag.h43
1 files changed, 42 insertions, 1 deletions
diff --git a/src/diag.h b/src/diag.h
index 2b13609..f2498b5 100644
--- a/src/diag.h
+++ b/src/diag.h
@@ -55,6 +55,20 @@ void bfs_diagf(const struct bfs_loc *loc, const char *format, ...);
#define bfs_diag(...) bfs_diagf(bfs_location(), __VA_ARGS__)
/**
+ * Get the last error message.
+ */
+const char *bfs_errstr(void);
+
+/**
+ * Print a diagnostic message including the last error.
+ */
+#define bfs_ediag(...) \
+ bfs_ediag_("" __VA_ARGS__, bfs_errstr())
+
+#define bfs_ediag_(format, ...) \
+ bfs_diag(sizeof(format) > 1 ? format ": %s" : "%s", __VA_ARGS__)
+
+/**
* Print a message to standard error and abort.
*/
attr(cold, printf(2, 3))
@@ -63,15 +77,27 @@ noreturn void bfs_abortf(const struct bfs_loc *loc, const char *format, ...);
/**
* Unconditional abort with a message.
*/
-#define bfs_abort(...) bfs_abortf(bfs_location(), __VA_ARGS__)
+#define bfs_abort(...) \
+ bfs_abortf(bfs_location(), __VA_ARGS__)
+
+/**
+ * Abort with a message including the last error.
+ */
+#define bfs_eabort(...) \
+ bfs_eabort_("" __VA_ARGS__, bfs_errstr())
+
+#define bfs_eabort_(format, ...) \
+ bfs_abort(sizeof(format) > 1 ? format ": %s" : "%s", __VA_ARGS__)
/**
* Abort in debug builds; no-op in release builds.
*/
#ifdef NDEBUG
# define bfs_bug(...) ((void)0)
+# define bfs_ebug(...) ((void)0)
#else
# define bfs_bug bfs_abort
+# define bfs_ebug bfs_eabort
#endif
/**
@@ -88,12 +114,27 @@ noreturn void bfs_abortf(const struct bfs_loc *loc, const char *format, ...);
str, __VA_ARGS__))
/**
+ * Unconditional assert, including the last error.
+ */
+#define bfs_everify(...) \
+ bfs_everify_(#__VA_ARGS__, __VA_ARGS__, "", bfs_errstr())
+
+#define bfs_everify_(str, cond, format, ...) \
+ ((cond) ? (void)0 : bfs_abort( \
+ sizeof(format) > 1 \
+ ? "%.0s" format "%s: %s" \
+ : "Assertion failed: `%s`: %s", \
+ str, __VA_ARGS__))
+
+/**
* Assert in debug builds; no-op in release builds.
*/
#ifdef NDEBUG
# define bfs_assert(...) ((void)0)
+# define bfs_eassert(...) ((void)0)
#else
# define bfs_assert bfs_verify
+# define bfs_eassert bfs_everify
#endif
struct bfs_ctx;