Rename _strlen_clipped to strnlen (and use the system equivalent for char * inputs).

Author: Ivorforce

core/extension/gdextension_interface.cpp

@@ -905,7 +905,7 @@ static void gdextension_string_new_with_wide_chars(GDExtensionUninitializedStrin
 
 static void gdextension_string_new_with_latin1_chars_and_len(GDExtensionUninitializedStringPtr r_dest, const char *p_contents, GDExtensionInt p_size) {
 	String *dest = memnew_placement(r_dest, String);
-	dest->append_latin1(Span(p_contents, p_contents ? _strlen_clipped(p_contents, p_size) : 0));
+	dest->append_latin1(Span(p_contents, p_contents ? strnlen(p_contents, p_size) : 0));
 }
 
 static void gdextension_string_new_with_utf8_chars_and_len(GDExtensionUninitializedStringPtr r_dest, const char *p_contents, GDExtensionInt p_size) {
@@ -930,7 +930,7 @@ static GDExtensionInt gdextension_string_new_with_utf16_chars_and_len2(GDExtensi
 
 static void gdextension_string_new_with_utf32_chars_and_len(GDExtensionUninitializedStringPtr r_dest, const char32_t *p_contents, GDExtensionInt p_char_count) {
 	String *string = memnew_placement(r_dest, String);
-	string->append_utf32(Span(p_contents, p_contents ? _strlen_clipped(p_contents, p_char_count) : 0));
+	string->append_utf32(Span(p_contents, p_contents ? strnlen(p_contents, p_char_count) : 0));
 }
 
 static void gdextension_string_new_with_wide_chars_and_len(GDExtensionUninitializedStringPtr r_dest, const wchar_t *p_contents, GDExtensionInt p_char_count) {
@@ -941,7 +941,7 @@ static void gdextension_string_new_with_wide_chars_and_len(GDExtensionUninitiali
 	} else {
 		// wchar_t is 32 bit (UTF-32).
 		String *string = memnew_placement(r_dest, String);
-		string->append_utf32(Span((const char32_t *)p_contents, p_contents ? _strlen_clipped((const char32_t *)p_contents, p_char_count) : 0));
+		string->append_utf32(Span((const char32_t *)p_contents, p_contents ? strnlen((const char32_t *)p_contents, p_char_count) : 0));
 	}
 }
 

core/string/ustring.h

@@ -73,19 +73,8 @@ constexpr size_t strlen(const wchar_t *str) {
 #endif
 }
 
-constexpr size_t _strlen_clipped(const char *p_str, int p_clip_to_len) {
-	if (p_clip_to_len < 0) {
-		return strlen(p_str);
-	}
-
-	int len = 0;
-	while (len < p_clip_to_len && *(p_str++) != 0) {
-		len++;
-	}
-	return len;
-}
-
-constexpr size_t _strlen_clipped(const char32_t *p_str, int p_clip_to_len) {
+// strnlen equivalent function for char32_t * arguments.
+constexpr size_t strnlen(const char32_t *p_str, int p_clip_to_len) {
 	if (p_clip_to_len < 0) {
 		return strlen(p_str);
 	}