Why using define or static const?

Asked Jun 20 '13 at 20:59

Active Jun 20 '13 at 21:00

Viewed 92 times

What is preferable to use between:

#define PI 3.14159265

and

static const float PI=3.14159265

I know that define is used at compilation time and static const is used at execution time. Is just that I don't know which one to use and why?

asked Jun 20 '13 at 20:59

gbriones.gdl

for C++11 use constexpr. – indeterminately sequenced Jun 20 '13 at 21:00
Related to [“static const” vs “#define” in C](http://stackoverflow.com/questions/1674032/static-const-vs-define-in-c) and [static const vs #define](http://stackoverflow.com/questions/1637332/static-const-vs-define). – Pixelchemist Jun 20 '13 at 21:03
2

For C++14 use a [template variable](http://isocpp.org/files/papers/N3651.pdf). – Casey Jun 20 '13 at 21:08

0 Answers0