Is strlen ( FILE) checked at compile time

Question

Is strlen(__FILE__)

compile-time appreciated - if I use a recent compiler (GCC, Clang, MSVC)?

+3

Arno duvenhage May 27 '15 at 16:58

2 answers

No, since the strlen parameter is not defined by the standard as a constexpr function

0

KABoissonneault May 27 '15 at 17:20

Marco A. · Accepted Answer · 2015-05-27T17:33:54+0000

Clang and gcc can both figure this out at compile time thanks to constant bending , but that doesn't apply anywhere in the C ++ Standard.

Usage sizeof

can ensure that this is evaluated at compile time.

Is strlen (__ FILE__) checked at compile time