libhmap-c

commit bd2e5f7bdd17d757a17301587206eb1cb3af3ad5
parent a21f5271c522c5938d96af8218d3f24ff85401d9
Author: Louis Burda <quent.burda@gmail.com>
Date:   Mon, 20 Mar 2023 15:05:24 +0100

Add strerror lut definition macro

Diffstat:
M
include/hashmap.h
 | 
5
+++++
M
src/test.c
 | 
7
++++++-

2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/include/hashmap.h b/include/hashmap.h
@@ -10,6 +10,11 @@
 #define HASHMAP_ITER(map, iter) \
 	hashmap_iter_init(iter); hashmap_iter_next(map, iter);
 
+#define HASHMAP_STRERR_INIT \
+	[HMAP_OK] = "Success", \
+	[HMAP_KEY_EXISTS] = "Key exists", \
+	[HMAP_KEY_MISSING] = "Key missing"
+
 typedef uint32_t (*hashmap_hash_func)(const void *data, size_t size);
 typedef bool (*hashmap_keycmp_func)(const void *key1, size_t size1,
 	const void *key2, size_t size2);
diff --git a/src/test.c b/src/test.c
@@ -5,7 +5,12 @@
 #include <string.h>
 #include <stdlib.h>
 
-#define LIBHASHMAP_ERR(rc) errx(1, "libhashmap: %s", rc < 0 ? strerror(-rc) : "???")
+#define LIBHASHMAP_ERR(rc) errx(1, "libhashmap: %s", \
+	rc < 0 ? strerror(-rc) : hmap_err[rc])
+
+static const char *hmap_err[] = {
+	HASHMAP_STRERR_INIT
+};
 
 int
 main(int argc, const char **argv)