diff -r 68ff0839bc6a -r 247db6e629ad src/cx/string.h
--- a/src/cx/string.h	Tue Jan 28 18:27:46 2025 +0100
+++ b/src/cx/string.h	Mon Feb 10 18:25:16 2025 +0100
@@ -951,26 +951,6 @@
 );
 
 /**
- * Converts the string to lower case.
- *
- * The change is made in-place. If you want a copy, use cx_strdup(), first.
- *
- * @param string the string to modify
- * @see cx_strdup()
- */
-void cx_strlower(cxmutstr string);
-
-/**
- * Converts the string to upper case.
- *
- * The change is made in-place. If you want a copy, use cx_strdup(), first.
- *
- * @param string the string to modify
- * @see cx_strdup()
- */
-void cx_strupper(cxmutstr string);
-
-/**
  * Replaces a pattern in a string with another string.
  *
  * The pattern is taken literally and is no regular expression.