Rounding up and down a number C++

by 
std::ceil

rounds up to the nearest integer

std::floor

rounds down to the nearest integer

std::round

performs the behavior you expect

please give a use case with numbers if this does not provide you with what you need!

More Related Contents:

  1. Sin and Cos give unexpected results for well-known angles
  2. Constexpr Math Functions
  3. Why are some functions in not in the std namespace?
  4. Is std::abs(0u) ill-formed?
  5. GCC C++ pow accuracy
  6. When do I use fabs and when is it sufficient to use std::abs?
  7. Why is pow(int, int) so slow?
  8. Getting a segmentation error when printing my array of strings
  9. SDL and C++ Class…how to separate this code?
  10. How do you clear a stringstream variable?
  11. Can I call a base class’s virtual function if I’m overriding it?
  12. What does C++ struct syntax “a : b” mean
  13. What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
  14. When passing an array to a function in C++, why won’t sizeof() work the same as in the main function?
  15. Modifying a const through a non-const pointer
  16. Error when compiling some simple c++ code
  17. Spiral rule and ‘declaration follows usage’ for parsing C and C++ declarations
  18. Why does std::array not have an constructor that takes a value for the array to be filled with?
  19. How to get the digits of a number without converting it to a string/ char array?
  20. How is P0522R0 breaking code?
  21. invalid conversion from ‘const char*’ to ‘char’
  22. CMake does not find Visual C++ compiler
  23. What happens if I read a map’s value where the key does not exist?
  24. C++ static template member, one instance for each template type?
  25. Determine if map contains a value for a key?
  26. What does the void() in decltype(void()) mean exactly?
  27. How to deal with global-constructor warning in clang?
  28. How do I print to the debug output window in a Win32 app?
  29. Template Function Specialization for Integer Types
  30. C++ 11: Calling a C++ function periodically

Leave a Comment