str: Add to_upper() + tests

Signed-off-by: Andrew Opalach <andrew@akon.city>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/al/str.h b/include/al/str.h
index 6640b0f..cb7c98f 100644
--- a/include/al/str.h
+++ b/include/al/str.h
@@ -70,6 +70,13 @@ static inline void al_str_to_lower(str *s)
     }
 }
 
+static inline void al_str_to_upper(str *s)
+{
+    for (u32 i = 0; i < s->length; i++) {
+        al_str_at(s, i) = al_toupper(al_str_at(s, i));
+    }
+}
+
 // Returned c_str must be free'd by the user.
 static inline char *al_str_to_c_str(str *s)
 {
@@ -167,6 +174,7 @@ static inline bool al_str_tok(str *result, char delim)
     return true;
 }
 
+// djb2 hash.
 static inline u32 al_str_hash(str *s)
 {
     u32 hash = 5381;