Standard C Development
The foundation of systems programming. Focus on efficiency, portability, and manual control.
1. Robust File Handling
In the "Old School" approach, we don't assume the file exists. We check everything.
FILE *fp = fopen("data.log", "a");
if (fp == NULL) {
perror("Error opening file");
return -1;
}
fprintf(fp, "Log Entry: %d\n", value);
fclose(fp);
if (fp == NULL) {
perror("Error opening file");
return -1;
}
fprintf(fp, "Log Entry: %d\n", value);
fclose(fp);
2. Manual Memory Management
No garbage collector here. You allocate it, you own it, you free it.
int *arr = (int*)malloc(10 * sizeof(int));
if (arr != NULL) {
// Use the array...
free(arr); // Essential prevention of memory leaks
}
if (arr != NULL) {
// Use the array...
free(arr); // Essential prevention of memory leaks
}