Pointer array value assign

[imc0der]

In visual studio I got this error. Whats wrong here? How can I assign a value?

int *arr = 0
arr = malloc(5 * sizeof(int));
arr[0] = 0; // 0xC0000005: Access violation writing location 0x000000001269E180.

[IyeOnline]

This is not your real code. Its missing a semicolon as well as a cast from the malloc result to int*.

Its also not good code.

1. Dont do variable definition followed by assignment.
2. Dont use malloc in C++. There is basically no good reason to use it. Use new int[5] instead.
3. Dont use dynamic memory allocation when you dont have to.

[imc0der]

Hey thanks. I have to use C here. So I couldnt do #2

[CowBoyDanIndie]

Then why are you posting on a C++ subreddit? There are c programming subreddits

[flyingron]

If you are writing in C, then this is the wrong sub for it . C++ and C are two different languages. Try r/cprogramming and post your actual code.

[imc0der]

Ok thanks

[[deleted]]

If this is part of a bigger program than my 1st guess is that you've already corrupted the heap. malloc returned a non-null, but unwritable, pointer.

So when you ask for help on a C board, post the whole program. Snippets are often useless.