unable to allocate memory in middle of file

[svsteja1991]

I created a structure containing two variables of type char.

i.e.

char name[64],char details[128];

And a pointer to structure now when I write this name and details to file and now I want to change the particular name.

i.e.

To modify then if the stored file name is greater than the entered name then it is erasing the next record line also I need to allocate some memory.

[Banfa]

If we are going to help you discern the problem it would be helpful to see the code you already have that writes to and reads from the file.

[weaknessforcats]

Also, the answer is different if you are using C++ instead of C.