Thread: ASCII hex string to __int64

Hello,
I have CString holding an ASCII hex number.
ie:
CString hex_number = "0x0C127D83";

I want to convert this to an __int64.

I've seen _atoi64(), but that only does base 10 conversions. Is there something out there to do this, or do I have to write my own function?

Thanks

If you have MSVC.NET this'll work -

Code:

#include <iostream>
#include <sstream>
using namespace std;

int main (void)
{
	char* a=  "0x0C127D83"; 
	__int64 i;

	stringstream ss(a);
	ss>> hex >> i;
	
	cout << i;

	return 0;
}

Thanks Sorensen,
I don't have MSVC.Net.
I tried that with VC++6, no luck. I guess I'll keep looking, or write it myself, (I have a sneaking suspicion I'd be reinventing the wheel thouh)

I have my solution, if anyone is interested. I can't beleive I missed it in the help files...

CString hex_str = "0x776FFE53B2";

__int64 bigint;

sscanf(( LPCTSTR )hex_str, "%I64X", &bigint );

Good ol C runtime libs!