Bugfix: Replace index() with strchr().

The `index()` function is deprecated.
Use the `strchr()` function instead.

diff --git a/level_0/f_environment/c/environment.c b/level_0/f_environment/c/environment.c
index 80b8b3c..89a1ee3 100644 (file)
--- a/level_0/f_environment/c/environment.c
+++ b/level_0/f_environment/c/environment.c
@@ -95,7 +95,7 @@ extern char **environ;
       map.key.used = 0;
       map.value.used = 0;
 
-      at = index(*string, f_string_ascii_equal_s.string[0]);
+      at = strchr(*string, f_string_ascii_equal_s.string[0]);
       if (!at || at == *string) continue;
 
       map.key.string = *string;