cstdint

I'm trying to compile a C++ software package that was written in 2007 and I'm getting this error: error: ‘uint32_t’ does not name a type This is happening in 64-bit Ubuntu using g++ 4.5.2. It compiles fine on 64-bit CentOS using g++ 4.1.2. Is there an #include or a compiler flag that I'm missing? Or, should I use typedef to assign uint32_t to a size_t or maybe an unsigned int ? You need to include stdint.h #include <stdint.h> plasma You need to #include <cstdint> , but that may not always work. The problem is that some compiler often automatically export names defined in various headers or

I have been pondering on whether or not I should use the typedefs inside <cstdint> or not. I personally prefer writing uint32_t over unsigned int and int8_t over char etc... since it to me is alot more intuitive. What do you guys think? Is it a good idea to use the typedefs from <cstdint> or not? Are there any disadvantages? Actually, I would suggest using both. If you want something that is definitely 32-bits unsigned, use uint32_t. For example, if you are implementing a "struct" to represent an external object whose specification defines one of its fields as 32 bits unsigned. If you want

I experienced some odd behavior while using C++ type traits and have narrowed my problem down to this quirky little problem for which I will give a ton of explanation since I do not want to leave anything open for misinterpretation. Say you have a program like so: #include <iostream> #include <cstdint> template <typename T> bool is_int64() { return false; } template <> bool is_int64<int64_t>() { return true; } int main() { std::cout << "int:\t" << is_int64<int>() << std::endl; std::cout << "int64_t:\t" << is_int64<int64_t>() << std::endl; std::cout << "long int:\t" << is_int64<long int>() <<