FE_DFL_ENV
FE_DFL_ENV
Defined in header <cfenv> | ||
|---|---|---|
#define FE_DFL_ENV /*implementation defined*/ | (since C++11) |
The macro constant FE_DFL_ENV expands to an expression of type const std::fenv_t*, which points to a full copy of the default floating-point environment, that is, the environment as loaded at program startup.
Additional macros that begin with FE_ followed by uppercase letters, and have the type const std::fenv_t*, may be supported by an implementation.
Example
