I have a byte[4] which contains a 32-bit unsigned integer (in big endian order) and I need to convert it to long (as int can't hold an unsigned number). Also, how do I do it vice-versa (i.e. from ...

What will the unsigned int contain when I overflow it? To be specific, I want to do a multiplication with two unsigned ints: what will be in the unsigned int after the multiplication is finished? ...

I am trying to write a function in C++ which takes two 64 bit unsigned integers and returns their difference in a signed 64 bit integer. It seems to be a bit complicated because of the overflow sit...

Lets assume we are talking about 32bit system. PHP doesn't support unsigned INT. It means that INT value should be between -2,147,483,648 and 2,147,483,647 values. And INT takes 4 bytes to store a...

When I try to compile the following C++ program using the Visual Studio 2010 C++ compiler (X86) with warning level /W4 enabled, I get a signed/unsigned mismatch warning at the marked line. #includ...

How do I convert an unsigned int to jint? Do I have to convert it at all, or can I just return it without any special treatment? This is basically my code right now, but I can't test it, as I haven...

Wow I thought I knew my C++ but this is weird This function returns an unsigned int so I thought that means I will never get a negative number returned right? The function determines how many hou...

I want to reinterpret an unsigned long (actually, a DWORD) as a signed long. I tried: DWORD x; long y = reinterpret_cast<signed long>(x); However, VC++2010 intellisense tells me "Invalid t...

In limits.h, there are #defines for INT_MAX and INT_MIN (and SHRT_* and LONG_* and so on), but only UINT_MAX. Should I define UINT_MIN myself? Is 0 (positive zero) a portable value?

What is the difference between using int and uint? All the examples I have seen so far are using int for integers. Any advantage of using uint? Thanks.