197 void buffer_append_str2(buffer * const restrict b, const char * const s1, const size_t len1, const …  in buffer_append_str2()  argument
198     char * const restrict s = buffer_extend(b, len1+len2);  in buffer_append_str2()
200     mempcpy(mempcpy(s, s1, len1), s2, len2);  in buffer_append_str2()
202     memcpy(s,      s1, len1);  in buffer_append_str2()
203     memcpy(s+len1, s2, len2);  in buffer_append_str2()
207 void buffer_append_str3(buffer * const restrict b, const char * const s1, const size_t len1, const …  in buffer_append_str3()  argument
208     char * restrict s = buffer_extend(b, len1+len2+len3);  in buffer_append_str3()
210     mempcpy(mempcpy(mempcpy(s, s1, len1), s2, len2), s3, len3);  in buffer_append_str3()
212     memcpy(s,         s1, len1);  in buffer_append_str3()
213     memcpy((s+=len1), s2, len2);  in buffer_append_str3()
256 buffer_copy_path_len2 (buffer * const restrict b, const char * const restrict s1, size_t len1, cons…  in buffer_copy_path_len2()  argument
259     memcpy(buffer_string_prepare_copy(b, len1+len2+1), s1, len1);  in buffer_copy_path_len2()
260     b->used = len1 + 1;                    /*('\0' byte will be written below)*/  in buffer_copy_path_len2()