How to create a temporary value-initialized T* in standard C++?
void foo( int );
void bar( int * );
int main()
{
foo( int() ); // works. a temporary int - value initialized.
bar( ??? ); // how to create a temporary int *?
}
Just out of curiousity.
The easiest is to use curly braces:
bar({});
Or a using statement:
using p = int*;
bar( p() ); // how to create a temporary int *?
sehe just reminded me of the stupidly obvious answer of nullptr, 0, and NULL.
bar(nullptr);
And I'm sure there's many more ways.
GCC lets you use compound literals, but technically this isn't allowed
bar((int*){});