C / C++ / MFC

123
4567
89;
135
2468

#include <iostream>
#include <fstream>
void main()
{
	std::ifstream	MyFile("Data.txt");
	MyFile.seekg(0, std::ios_base::end);
	int iEnd = MyFile.tellg();
	MyFile.seekg(0, std::ios_base::beg);
	int iStart = MyFile.tellg();
	int iSize = iEnd - iStart;
	char* p = new char[iSize + 1];
	MyFile.read(p, iSize);
	int iLine = 0;
	if(iSize)
		iLine = 1;

	for(int i = 0; i < iSize; i++)
	{
		if('\n' == p[i])
			iLine++;
		if(';' == p[i])
			std::cout << iLine << " lines\n";
	}

	MyFile.close();
	delete []p;
}

BOOL TestAddr(int& ref, int* ptr)
{
    return (DWORD)&ref == (DWORD)ptr;
}

void main()
{
    int n;
    assert(TestAddr(n, &n));
}

<br />
void f(int& v)<br />
{<br />
printf("var in function: %u\n", &v);<br />
}<br />
<br />
int main()<br />
{<br />
int v;<br />
printf("var in main: %u\n", &v);<br />
f(v);<br />
}<br />