add jrk_string_to_cstr_arena.

1 files changed, 11 insertions, 0 deletions

diff --git a/jrk.h b/jrk.h
index 7739d34..8566d22 100644
--- a/jrk.h
+++ b/jrk.h
@@ -49,6 +49,7 @@ jrk_arena jrk_arena_create(u64);
 void *jrk__arena_push(jrk_arena*, u64);
 void jrk_arena_expand(jrk_arena*, u64);
 
+char *jrk_string_to_cstr_arena(jrk_arena*, jrk_string);
 jrk_string jrk_string_from_parts(char*, u64);
 jrk_string jrk_strchop_delim(char*, char, u64);
 void jrk_strput(jrk_string);
@@ -97,6 +98,7 @@ i32 jrk_rand_num_range(i32, i32);
 #define strput jrk_strput
 #define strputn jrk_strputn
 #define string_from_parts jrk_string_from_parts
+#define string_to_cstr_arena jrk_string_to_cstr_arena
 
 #define rand_num jrk_rand_num
 #define rand_num_range jrk_rand_num_range
@@ -215,6 +217,15 @@ jrk_strchop_delim(char *str, char delim, u64 n)
     return (jrk_string) {0};
 }
 
+char *
+jrk_string_to_cstr_arena(jrk_arena *arena, jrk_string string)
+{
+    char *result = arena_push_array(arena, char, string.length);
+    memcpy(result, string.data, string.length);
+    result[string.length] = '\0';
+    return result;
+}
+
 void
 jrk_strput(jrk_string string)
 {