better error handling

1 files changed, 8 insertions, 0 deletions

diff --git a/src/utils.h b/src/utils.h
index 5f7c0ff..8bc76f8 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -10,6 +10,14 @@ struct result {
     const char* errmsg;
 };
 
+#define unwrap(x__) ({ \
+    struct result res__ = (x__); \
+    if (res__.errmsg != NULL) return res__; \
+    res__.value;})
+
+struct result ok(void *value);
+struct result err(const char *errmsg);
+
 struct allocator * new_allocator();
 void delete_allocator(struct allocator * allocator);