Esempi in C++ (Cpp) per __fe_note_change

Esempio n. 1

File: fsetexcptflg.c Progetto: riscv/riscv-glibc

int
__fesetexceptflag (const fexcept_t *flagp, int excepts)
{
  unsigned long old_spefscr, spefscr;
  fexcept_t flag;
  int excepts_spe = __fexcepts_to_spe (excepts);

  /* Get the current state.  */
  old_spefscr = fegetenv_register ();

  /* Ignore exceptions not listed in 'excepts'.  */
  flag = *flagp & excepts_spe;

  /* Replace the exception status */
  spefscr = (old_spefscr & ~excepts_spe) | flag;

  /* Store the new status word (along with the rest of the environment).  */
  fesetenv_register (spefscr);

  /* If the state of the "invalid" or "underflow" flag has changed,
     inform the kernel.  */
  if (((spefscr ^ old_spefscr) & (SPEFSCR_FINVS | SPEFSCR_FUNFS)) != 0)
    __fe_note_change ();

  /* Success.  */
  return 0;
}

Esempio n. 2

File: fclrexcpt.c Progetto: JamesLinus/glibc-mips

int
__feclearexcept (int excepts)
{
  unsigned int fpescr;
  int excepts_spe = __fexcepts_to_spe (excepts);

  /* Get the current state.  */
  fpescr = fegetenv_register ();

  /* Clear the relevant bits.  */
  fpescr &= ~excepts_spe;

  /* Put the new state in effect.  */
  fesetenv_register (fpescr);

  /* Let the kernel know if the "invalid" or "underflow" bit was
     cleared.  */
  if (excepts & (FE_INVALID | FE_UNDERFLOW))
    __fe_note_change ();

  /* Success.  */
  return 0;
}