Module fenv
Floating-point environment (C99 <fenv.h>) Read and set floating-point exception flags and rounding mode.
Functions
| fenv_clear | Clear specified exception flags (pass FE_ALL_EXCEPT() to clear all). |
| fenv_test | Test whether any of the specified exceptions are raised. |
| fenv_raise | Raise specified exceptions. |
| fenv_get_round | Get current rounding mode (returns FE_* constant). |
| fenv_set_round | Set rounding mode (pass FE_* constant). Returns 0 on success. |
| fenv_save | Save and restore the complete FP environment. env must point to a 32-byte buffer. |
| fenv_restore | |
| fenv_save_clear | save + clear all exceptions |