fegetexceptflag, fesetexceptflag

From cppreference.com

< c‎ | numeric‎ | fenv

Common mathematical functions
Floating-point environment (C99)
Pseudo-random number generation
Complex number arithmetic (C99)
Type-generic math (C99)
Bit manipulation (C23)
Checked integer arithmetic (C23)

Functions
feclearexcept (C99)
fetestexcept (C99)
feraiseexcept (C99)
fegetexceptflagfesetexceptflag (C99)(C99)
fegetroundfesetround (C99)(C99)