147 int32_t utf32_from_utf8_at(const char *src, size_t src_len, size_t index, size_t *next_index)  in utf32_from_utf8_at()  argument
149     if (index >= src_len) {  in utf32_from_utf8_at()
163 ssize_t utf32_to_utf8_length(const char32_t *src, size_t src_len)  in utf32_to_utf8_length()  argument
165     if (src == nullptr || src_len == 0) {  in utf32_to_utf8_length()
169     const char32_t *end = src + src_len;  in utf32_to_utf8_length()
183 void utf32_to_utf8(const char32_t* src, size_t src_len, char* dst, size_t dst_len)  in utf32_to_utf8()  argument
185     if (src == nullptr || src_len == 0 || dst == nullptr) {  in utf32_to_utf8()
189     const char32_t *end_utf32 = src + src_len;  in utf32_to_utf8()
289 void utf16_to_utf8(const char16_t* src, size_t src_len, char* dst, size_t dst_len)  in utf16_to_utf8()  argument
291     if (src == nullptr || src_len == 0 || dst == nullptr) {  in utf16_to_utf8()
295     const char16_t* const end_utf16 = src + src_len;  in utf16_to_utf8()
360 ssize_t utf16_to_utf8_length(const char16_t *src, size_t src_len)  in utf16_to_utf8_length()  argument
362     if (src == nullptr || src_len == 0) {  in utf16_to_utf8_length()
366     const char16_t* const end = src + src_len;  in utf16_to_utf8_length()
406 size_t utf8_to_utf32_length(const char *src, size_t src_len)  in utf8_to_utf32_length()  argument
408     if (src == nullptr || src_len == 0) {  in utf8_to_utf32_length()
415     for (cur = src, end = src + src_len, num_to_skip = 1;  in utf8_to_utf32_length()
429 void utf8_to_utf32(const char* src, size_t src_len, char32_t* dst)  in utf8_to_utf32()  argument
431     if (src == nullptr || src_len == 0 || dst == nullptr) {  in utf8_to_utf32()
435     const char* const end = src + src_len;  in utf8_to_utf32()