RetroSearch Browse

Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://en.cppreference.com/w/cpp/language/../header/cfenv.html below:

Standard library header <cfenv>Â (C++11)

This header was originally in the C standard library as <fenv.h>.

This header is part of the floating-point environment library.

[edit] Types the type representing the entire floating-point environment
(typedef) [edit] the type representing all floating-point status flags collectively
(typedef) [edit] [edit] Functions clears the specified floating-point status flags
(function) [edit] determines which of the specified floating-point status flags are set
(function) [edit] raises the specified floating-point exceptions
(function) [edit] copies the state of the specified floating-point status flags from or to the floating-point environment
(function) [edit] gets or sets rounding direction
(function) [edit] saves or restores the current floating-point environment
(function) [edit] saves the environment, clears all status flags and ignores all future errors
(function) [edit] restores the floating-point environment and raises the previously raised exceptions
(function) [edit] [edit] Macros [edit] Synopsis

#define FE_ALL_EXCEPT /* see description */
#define FE_DIVBYZERO /* see description */    // optional
#define FE_INEXACT /* see description */      // optional
#define FE_INVALID /* see description */      // optional
#define FE_OVERFLOW /* see description */     // optional
#define FE_UNDERFLOW /* see description */    // optional
 
#define FE_DOWNWARD /* see description */     // optional
#define FE_TONEAREST /* see description */    // optional
#define FE_TOWARDZERO /* see description */   // optional
#define FE_UPWARD /* see description */       // optional
 
#define FE_DFL_ENV /* see description */
 
namespace std {
    // types
    using fenv_t    = /* object type */;
    using fexcept_t = /* object type */;
 
    // functions
    int feclearexcept(int except);
    int fegetexceptflag(fexcept_t* pflag, int except);
    int feraiseexcept(int except);
    int fesetexceptflag(const fexcept_t* pflag, int except);
    int fetestexcept(int except);
    int fegetround(void);
    int fesetround(int mode);
    int fegetenv(fenv_t* penv);
    int feholdexcept(fenv_t* penv);
    int fesetenv(const fenv_t* penv);
    int feupdateenv(const fenv_t* penv);
}

[edit] Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR Applied to Behavior as published Correct behavior LWG 3905 C++11 std::fexcept_t must be an integer type it is an object type

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4