extern bool my_string_whitespace (const char string[]);\r
extern bool my_string_equal (const char string_1[], const char string_2[]);\r
extern bool my_string_case_equal (const char string_1[], const char string_2[]);\r
+extern const char* my_string_case_contains(const char haystack[], \r
+ const char needle[]);\r
+\r
+\r
+extern bool my_string_to_lower (char dst[], const char src[]);\r
+\r
extern char * my_strdup (const char string[]);\r
\r
extern void my_string_clear (const char * * variable);\r