Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

global pointer assignment error

Nios 5.0.1

In global scope:

char test[20]="teststring";

char *cp1 = &test[0]; //this works

char *cp1; cp1 = &test[0]; //but this does not

It all works inside a function, but not in global scope.

Is this part of the anti-global variable campaign, or something I missed in my remedial C class?

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Because the first assignment is done at compile time, and second assignment must be done at run time i.e. generates code. This is only allowed inside a function. Too early in the morning...