FILE* fp = fopen("text.txt", "rt");
if(fp == NULL){
exit(-1);
}
fseek(fp, 0L, SEEK_END);
unsigned file_size = ftell(fp);
fseek(fp, 0L, SEEK_SET);
FILE* fp = fopen("text.txt", "rt");
if(fp == NULL){
exit(-1);
}
fseek(fp, 0L, SEEK_END);
unsigned file_size = ftell(fp);
fseek(fp, 0L, SEEK_SET);