How to handle realloc when it fails due to memory?

Question

Question says it all but here is an example:

typedef struct mutable_t{
    int count, max;
    void **data;
} mutable_t;


void pushMutable(mutable_t *m, voi         


        

Answer 1

That's entirely your problem! Here are some criteria:

• You asked for that memory for a reason. If it's not available, is your program's work doomed or can it go on doing stuff? If the former, you want to terminate your program with an error message; otherwise, you can display an error message somehow and go on.

• Is there a possibility to trade time for space? Could you reply whatever operation you attempted using an algorithm that uses less memory? That sounds like a lot of work but would in effect be a possibility for continuing your program's operation in spite of not having enough memory initially.

• Would it be wrong for your program to continue limping along without this data and not enough memory? If so, you should terminate with an error message. It is much better to kill your program than to blindly continue processing incorrect data.