The difference between C + + char a[] and char *a, changing the cause of a char *a burst memory error

Source: Internet
Author: User

For some functions that need to pass in a parameter of char * temp pointer class;

We define a char a[10] or char *a to pass in.

But

If the function is to change the value of the parameter you passed in, the incoming Char *a will burst the memory error, and Char a[10] will not.

For example: strtok in the following. strcpy, strcat If the first argument is passed to the char *a pointer type, it will cause a burst memory error.

I did not use char in my example *

Reason:

Pointer type * It is not allocated address space, defined is a pointer constant, constant to change its value, naturally wrong.

and a[] is in the address space.

The difference between C + + char a[] and char *a, changing the cause of a char *a burst memory error

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