Is there any way to declare a global variable in a local function instead declare it at the top?
My situation is that:
How can info[num] be declared as global variable?Code:struct data { int a; int b; } int main () { ...} int function () { // get an integer to variable "num" here struct data info[num]; }
It can't, since you want to dimension to be determined at run time. Define a pointer, either at file scope or prefixed with the "static" keyword, and then use malloc() to dynamically allocate memory.
You should know the difference between declaration and definition.
I think, most people (and you) say declaration and mean definition.
A definition is a type of declaration, Billy
A definition is not a type of declaration, it implicies a declaration.
A program with declarations cannot work/compile/link, only with definitions.
Therefore every program needs ever definitions and that's it, what he mean and i say.
The C standard disagrees with you:Originally Posted by BillyTKid
That said, yes, in this case "definition" would have been more precise than "declaration".
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