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glibc  2.9
fpu_control.h File Reference

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void __setfpucw (fpu_control_t)

Function Documentation

Definition at line 24 of file setfpucw.c.

  fpu_control_t cw;

  /* Fetch the current control word.  */
  _FPU_GETCW (cw);

  /* Preserve the reserved bits, and set the rest as the user
     specified (or the default, if the user gave zero).  */
  cw &= _FPU_RESERVED;
  cw |= set & ~_FPU_RESERVED;

  _FPU_SETCW (cw);

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