Correct printf format specifier for size_t: %zu or %Iu?

Question

I want to print out the value of a size_t variable using printf in C++ using Microsoft Visual Studio 2010 (I want to use printf instea

Answer 1

Based on the answer from here, %z is a C99 addition. Since MSVC doesn't support any of the later C standards, it's no surprise that %z isn't supported.