Why does gcc compiler output pow(10,2) as 99 not 100? [duplicate]

by

Because of integer truncation. pow() returns a floating point value, and due to floating point arithmetic, it is probably ~ 99.999...; however, due to integer truncation, even 99.999... gets truncated down to 99.

More Related Contents:

  1. How exactly does __attribute__((constructor)) work?
  2. Why does integer overflow on x86 with GCC cause an infinite loop?
  3. Capturing function exit time with __gnu_mcount_nc
  4. Why is my program slow when looping over exactly 8192 elements?
  5. How do I list the symbols in a .so file
  6. C++ syntax for explicit specialization of a template function in a template class?
  7. Error “undefined reference to ‘std::cout'”
  8. How to compile for Windows on Linux with gcc/g++?
  9. GCC STL bound checking
  10. std::stoi doesn’t exist in g++ 4.6.1 on MinGW
  11. Explicit specialization in non-namespace scope does not compile in GCC
  12. C++: Safe to use longjmp and setjmp?
  13. How to use OpenSSL’s SHA256 functions
  14. How to get a stack trace for C++ using gcc with line number information?
  15. How to link using GCC without -l nor hardcoding path for a library that does not follow the libNAME.so naming convention?
  16. Is RVO (Return Value Optimization) applicable for all objects?
  17. Linking problems due to symbols with abi::cxx11?
  18. RDRAND and RDSEED intrinsics on various compilers?
  19. How to enable experimental C++11 concurrency features in MinGW?
  20. C++ : friend declaration ‘declares a non-template function
  21. Can I link a plain file into my executable? [duplicate]
  22. What is “strip” (GCC application) used for?
  23. What does -fPIC mean when building a shared library?
  24. Static and Dynamic/Shared Linking with MinGW
  25. Difference between regex_match and regex_search?
  26. Why does sqrt() work fine on an int variable if it is not defined for an int?
  27. counting the number of lines in a text file
  28. Should std::unique_ptr be permitted
  29. What is the order of evaluation in a member initializer list?
  30. How do I use google mock in C?

Leave a Comment