Here is the code...

Code:
///////////////////////////////////////////////////////////////////
//header statements
#include <iostream.h>
#include <stdlib.h>

///////////////////////////////////////////////////////////////////
//functions
void size();
void charac():

///////////////////////////////////////////////////////////////////
//main
void main()
{
	cout<<"Hello, I am Disposable Hero A59."<<endl;
	cout<<""<<endl;
	size();
	charac();
}	

///////////////////////////////////////////////////////////////////
//size()
void size()
{
	cout<<"The size of a char is\t"<<sizeof(char)<<" bytes"<<endl;
	cout<<"The size of a short is\t"<<sizeof(short)<<" bytes"<<endl;
	cout<<"The size of an int is\t"<<sizeof(int)<<" bytes"<<endl;
	cout<<"The size of a long is\t"<<sizeof(long)<<" bytes"<<endl;
	cout<<"The size of a float is\t"<<sizeof(float)<<" bytes"<<endl;
	cout<<"The size of a double is\t"<<sizeof(double)<<" bytes"<<endl;
	cout<<""<<endl;
	cout<<"The size of the variables was found by using the 'sizeof()' function."<<endl;
	system("pause");
	system("cls");
}

///////////////////////////////////////////////////////////////////
//charac()
void charac()
{
	cout<<"These are the characters from 32 to 128"<<endl;
	cout<<""<<endl;
	for(int i=32; i<128; i++)
	{
		cout<<(char)i;
	}
	cout<<""<<endl;
	cout<<"These were found by using the '(char)' function."<<endl;
	system("pause");
	system("cls");
}
And here are the errors

Code:
error C2062: type 'void' unexpected
error C2084: function 'void __cdecl charac(void)' already has a body
I cant figure it out...
Can you?