12   FILE* file_descriptor = fopen(filename.c_str(), "wb");  in WriteStringToFileOrDie()  local
13   if (!file_descriptor) {  in WriteStringToFileOrDie()
16   fwrite(data.c_str(), 1, data.size(), file_descriptor);  in WriteStringToFileOrDie()
17   fclose(file_descriptor);  in WriteStringToFileOrDie()
21   FILE* file_descriptor = fopen(filename.c_str(), "r");  in ReadFileToStringOrDie()  local
23   if (!file_descriptor) {  in ReadFileToStringOrDie()
28   fseek(file_descriptor, 0L, SEEK_END);  in ReadFileToStringOrDie()
29   int num_bytes = ftell(file_descriptor);  in ReadFileToStringOrDie()
33   fseek(file_descriptor, 0L, SEEK_SET);  in ReadFileToStringOrDie()
35       fread(&((*data)[0]), sizeof((*data)[0]), num_bytes, file_descriptor);  in ReadFileToStringOrDie()
41   fclose(file_descriptor);  in ReadFileToStringOrDie()