Function insert_str_str

leif.c:1474–1486

}

void insert_str_str(char* source, const char* insert, int32_t index) {
  int source_len = strlen(source);
  int insert_len = strlen(insert);

  if (index < 0 || index > source_len) {
    LF_ERROR("Index for inserting out of bounds\n");
    return;
  }

  memmove(source + index + insert_len, source + index, source_len - index + 1);

  memcpy(source + index, insert, insert_len);
}

void substr_str(const char* str, int start_index, int end_index, char* substring) {
  int substring_length = end_index - start_index + 1;