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Jul 31st, 2012 | syntax:
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C : Should I use 'typedef' or 'using namespace'? [closed]
using namespace project1::namespace1;
class1 obj;
typedef project1::namespace1::class1 class1;
class1 obj;
using namespace project1::namespace1;
using project1::namespace::class1;
namespace X {
const int x{42};
enum Fruit{Apple, Pear};
}
using X::x; // OK
typedef X::x xx; // Error! 'x' in namespace 'X' does not name a type
void function()
{
using namespace project1::namespace1;
class1 obj;
...
}