[Solved] using realloc in C with malloc [closed]

by

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if (newsize == 0) {
    free(ptr);
    return;
}
if (ptr == NULL)
    return malloc(size);

// otherwise do a true realloc

As for

What if there is not a contigious size of the size wanted.

Then realloc returns NULL and sets errno to indicate the error.

9

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solved using realloc in C with malloc [closed]