Ternary operator ?: vs if…else

by

It is not faster. There is one difference when you can initialize a constant variable depending on some expression:

const int x = (a<b) ? b : a;

You can’t do the same with if-else.

More Related Contents:

  1. Regarding time out in code
  2. How do I use the conditional (ternary) operator?
  3. Is < faster than
  4. What is the advantage of using forwarding references in range-based for loops?
  5. Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor implementation?
  6. What is IACA and how do I use it?
  7. Performance of built-in types : char vs short vs int vs. float vs. double
  8. What’s your favorite profiling tool (for C++) [closed]
  9. How expensive is RTTI?
  10. Which is more efficient: Return a value vs. Pass by reference?
  11. How much is the overhead of smart pointers compared to normal pointers in C++?
  12. Using AVX CPU instructions: Poor performance without “/arch:AVX”
  13. Why does this delay-loop start to run faster after several iterations with no sleep?
  14. Conditional operator used in cout statement
  15. clock function in C++ with threads
  16. What is the fastest way to change a key of an element inside std::map
  17. Efficiency of the STL priority_queue
  18. Avoiding denormal values in C++
  19. Writing function definition in header files in C++
  20. Ternary operator is twice as slow as an if-else block?
  21. Performance hit from C++ style casts?
  22. shared_ptr: horrible speed
  23. Why is std::vector::operator[] 5 to 10 times faster than std::vector::at()?
  24. Simple for() loop benchmark takes the same time with any loop bound
  25. Why do I see 400x outlier timings when calling clock_gettime repeatedly?
  26. What is the modern, correct way to do type punning in C++?
  27. New (std::nothrow) vs. New within a try/catch block
  28. C++ most efficient way to convert string to int (faster than atoi)
  29. Why is this C++ wrapper class not being inlined away?
  30. should std::common_type use std::decay?

Leave a Comment