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#include <stdio.h>
#include <signal.h>
#ifdef MACOSX
#include <math.h>
#include <fenv.h>
#endif
#ifdef CYGWIN
#include <math.h>
#include <mingw/fenv.h>
#endif
#define import_spp
#define import_knames
#include <iraf.h>
#if (defined(MACOSX) && defined(OLD_MACOSX))
void ex_handler ( int, int, struct sigcontext * );
#else
void ex_handler ( int, siginfo_t *, void * );
#endif
/*
* ZZEPRO.C -- Code which is executed at the end of every procedure.
*/
/* NOTE: Following is also picked up by Mac/Intel. */
#if ( (defined(MACOSX) || defined(CYGWIN)) && !defined(IPAD))
int macosx_sigmask = (FE_DIVBYZERO|FE_OVERFLOW|FE_INVALID);
void mxmask_ (void);
void mxumsk_ (void);
/* ZZEPRO.C -- On MacOSX (which under 10.1.x can't raise a hardware
* exception) we check at the end of every procedure to see if a floating
* exception occurred.
*/
int
ZZEPRO (void)
{
fexcept_t flagp;
fegetexceptflag (&flagp, macosx_sigmask);
if (flagp & macosx_sigmask) {
siginfo_t info;
info.si_code = (flagp & macosx_sigmask);
ex_handler (SIGFPE, &info, NULL);
}
/* Clear the exception. */
flagp = (fexcept_t) 0;
feclearexcept (FE_ALL_EXCEPT);
return (XOK);
}
/* Mask or unmask the invalid operand exception. Invalid must be
* masked to be able to operate upon invalid operands, e.g., to filter
* out NaN/Inf in IEEE i/o code (see as$ieee.gx).
*/
void mxmask_ (void)
{
macosx_sigmask &= ~FE_INVALID;
}
void mxumsk_ (void)
{
fexcept_t flagp;
fegetexceptflag (&flagp, macosx_sigmask);
macosx_sigmask |= FE_INVALID;
flagp &= ~FE_INVALID;
fesetexceptflag (&flagp, macosx_sigmask);
}
#else
int ZZEPRO ( void) { return (XOK); }
#endif
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