Although GCC does provide __int128
, it is supported only for targets (processors) which have an integer mode wide enough to hold 128 bits. On a given system, sizeof() intmax_t
and uintmax_t
determine the maximum value that the compiler and the platform support.
More Related Contents:
- Fast Cross-Platform C/C++ Image Processing Libraries
- Why does C++ code for testing the Collatz conjecture run faster than hand-written assembly?
- Does the size of an int depend on the compiler and/or processor?
- Return type of ‘?:’ (ternary conditional operator)
- Is there any advantage of using map over unordered_map in case of trivial keys?
- How much is too much with C++11 auto keyword?
- Static linking vs dynamic linking
- Efficient string concatenation in C++
- Using scanf() in C++ programs is faster than using cin?
- What’s the difference between size_t and int in C++?
- What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
- Relative performance of std::vector vs. std::list vs. std::slist?
- Generating m distinct random numbers in the range [0..n-1]
- Performance of dynamic_cast?
- Is there any LAME C++ wrapper\simplifier (working on Linux Mac and Win from pure code)?
- Is the ranged based for loop beneficial to performance?
- is it ok to specialize std::numeric_limits for user-defined number-like classes?
- What is the performance cost of having a virtual method in a C++ class?
- Why is iterating though `std::vector` faster than iterating though `std::array`?
- How do unsigned integers work
- Difference between rdtscp, rdtsc : memory and cpuid / rdtsc?
- c++11 regex slower than python
- Do I have to use #include beside ?
- Using bts assembly instruction with gcc compiler
- Why is processing an unsorted array the same speed as processing a sorted array with modern x86-64 clang?
- What is a good random number generator for a game?
- How is a bool represented in memory?
- Simple for() loop benchmark takes the same time with any loop bound
- New (std::nothrow) vs. New within a try/catch block
- C++ most efficient way to convert string to int (faster than atoi)