PETSC_CONSTEXPR_14#
C++14 constexpr
Notes#
Equivalent to constexpr when using a C++ compiler that supports C++14. Expands to nothing if the C++ compiler does not support C++14 or when not compiling with a C++ compiler. Note that this cannot be used in cases where an empty expansion would result in invalid code. It is safe to use this in C source files.
Fortran Notes#
Not available in Fortran
Example Usage#
PETSC_CONSTEXPR_14 int factorial(int n)
{
int r = 1;
do {
r *= n;
} while (--n);
return r;
}
See Also#
Level#
beginner
Location#
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages