C / C++ / MFC

Eranga Thennakoon wrote:

In multi-dimensional arrays why I can't do this.

int (*array_T)[2] = new int[1024][2];

int (*array_T)[2] = new int[size][2]; //is possible // bracket in(*array_T) is important

int *array_T = new int[size1][size2]; is not possible

long key = 0;
memcpy(buffer,&key,4);

CPallini wrote:

BTW long data type is only 4 bytes wide.

int void FooBar(); // This is a declaration (no body).
int void FooBar() // This is a definition (has body).
{
	// Do stuff…
}

int FooBar; // This is a definition.
extern int FooBar; // This is a declaration.

George_George wrote:

1.

So, extern int i = 100;

should be declaration and matches the rule, " it contains the extern specifier (7.1.1)", right?

extern int i; // This is a declaration.
extern int i = 100; // This contains an initializer and thus is a definition (and a declaration).

George_George wrote:

2.

What is " linkage-specification (7.5)"?