string.c: remove unused API `mrb_str_strlen()`.
Compatibility macro is provided for safety.
MODIFY
include/mruby/string.h
include/mruby/string.h
@@ -102,7 +102,6 @@ struct RStringEmbed {
#define RSTRING_LEN(s) RSTR_LEN(RSTRING(s))
#define RSTRING_CAPA(s) RSTR_CAPA(RSTRING(s))
#define RSTRING_END(s) (RSTRING_PTR(s) + RSTRING_LEN(s))
-MRB_API mrb_int mrb_str_strlen(mrb_state*, struct RString*);
#define RSTRING_CSTR(mrb,s) mrb_string_cstr(mrb, s)
#define MRB_STR_SHARED 1
@@ -335,6 +334,8 @@ MRB_API const char *mrb_string_value_cstr(mrb_state *mrb, mrb_value *str);
MRB_API const char *mrb_string_value_ptr(mrb_state *mrb, mrb_value str);
/* obsolete: use RSTRING_LEN() */
MRB_API mrb_int mrb_string_value_len(mrb_state *mrb, mrb_value str);
+/* obsolete: substituted by a macro; shall be removed */
+#define mrb_str_strlen(mrb, s) strlen(RSTR_PTR(s))
/**
* Duplicates a string object.

MODIFY
src/string.c
src/string.c
@@ -696,17 +696,6 @@ str_rindex(mrb_state *mrb, mrb_value str, mrb_value sub, mrb_int pos)
}
}
-MRB_API mrb_int
-mrb_str_strlen(mrb_state *mrb, struct RString *s)
-{
- mrb_int max = RSTR_LEN(s);
- char *p = RSTR_PTR(s);
-
- if (!p) return 0;
- check_null_byte(mrb, s);
- return max;
-}
-
#ifdef _WIN32
#include <windows.h>

string.c: remove unused API `mrb_str_strlen()`.

Compatibility macro is provided for safety.