std_cxx17 Namespace Reference

Functions
double	legendre (unsigned int l, double x)
float	legendre (unsigned int l, float x)
float	legendref (unsigned int l, float x)

Detailed Description

deal.II currently only requires a C++14-conforming compiler, but there are a number of functions and classes from the C++17 standard that are easy to provide also in case the compiler only supports C++14. These are collected in the current namespace.

The most notable example is the std::optional class that was introduced to C++ starting with the C++17 standard.

There are other small additions in this namespace that allow us to use C++17 features at this point already, even though we don't require a C++17-compliant compiler.

Note

If the compiler in use actually does support C++17, then the contents of this namespace are simply imported classes and functions from namespace std. That is, we fall back to what the compiler provides, rather than our own implementations.

Function Documentation

legendre() [1/2]

double std_cxx17::legendre ( unsigned int  l, double  x  )

inline

Definition at line 66 of file cmath.h.

legendre() [2/2]

float std_cxx17::legendre ( unsigned int  l, float  x  )

inline

Definition at line 76 of file cmath.h.

legendref()

float std_cxx17::legendref ( unsigned int  l, float  x  )

inline

Definition at line 86 of file cmath.h.