##### cppreference.com

##### Search

Create account

##### Namespaces

- Page
- Discussion

##### Variants

##### Views

- View
- Edit
- History

##### Actions

# fegetexceptflag, fesetexceptflag

From cppreference.com
< c‎ | numeric‎ | fenv

Defined in header `<<fenv.h>>` |  |
int fegetexceptflag( fexcept_t* flagp, int excepts ); | (1) | (since C99)
int fesetexceptflag( const fexcept_t* flagp, int excepts ); | (2) | (since C99)

1) Attempts to obtain the full contents of the floating-point exception flags that are listed in the bitmask argument `excepts`, which is a bitwise OR of the floating point exception macros.

2) Attempts to copy the full contents of the floating-point exception flags that are listed in `excepts` from `flagp` into the floating-point environment. Does not raise any exceptions, only modifies the flags.

The full contents of a floating-point exception flag is not necessarily a boolean value indicating whether the exception is raised or cleared. For example, it may be a struct which includes the boolean status and the address of the code that triggered the exception. These functions obtain all such content and obtain/store it in `flagp` in implementation-defined format.

### [edit] Parameters

flagp | - | pointer to an fexcept_t object where the flags will be stored or read from
excepts | - | bitmask listing the exception flags to get/set

### [edit] Return value

​0​ on success, non-zero otherwise.

### [edit] Example

| This section is incomplete Reason: no example

### [edit] See also

C++ documentation for fegetexceptflag, fesetexceptflag

Retrieved from "http://en.cppreference.com/mwiki/index.php?title=c/numeric/fenv/feexceptflag&oldid=62548"
Category:

- Todo no example