Question

I wanna get string like 34,34;34,21;45,12;45,12(length is not certain.)
I wanna dynamic memory allocation with realloc but i can’t do it.
How i can get like this characters to string??

it will be string={34,34,34,21,45,12,45,12}

Answer 1

You will have to know the length beforehand, and when you know that your buffer is too small for data that is going to be newly entered, use:

realloc(ptr, newLength);