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Patch #453627: Define the following macros when compiling on a UnixWare 7.x system:

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SCO_ATAN2_BUG, SCO_ACCEPT_BUG, and STRICT_SYSV_CURSES.
Work aroudn a bug in the SCO UnixWare atan2() implementation.
This commit is contained in:
Martin v. Löwis 2001-09-05 14:45:54 +00:00
parent 0ace326ed2
commit 655c9557f6
4 changed files with 59 additions and 4 deletions
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18
Objects/complexobject.c
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@ -26,6 +26,22 @@
#define PREC_REPR 17
#define PREC_STR 12
#ifdef SCO_ATAN2_BUG
/*
* UnixWare 7+ is known to have a bug in atan2 that will return PI instead
* of ZERO (0) if the first argument is ZERO(0).
*/
static double atan2_sco(double x, double y)
{
if (x == 0.0)
return (double)0.0;
return atan2(x, y);
}
#define ATAN2 atan2_sco
#else
#define ATAN2 atan2
#endif
/* elementary operations on complex numbers */
static Py_complex c_1 = {1., 0.};
@ -138,7 +154,7 @@ c_pow(Py_complex a, Py_complex b)
else {
vabs = hypot(a.real,a.imag);
len = pow(vabs,b.real);
at = atan2(a.imag, a.real);
at = ATAN2(a.imag, a.real);
phase = at*b.real;
if (b.imag != 0.0) {
len /= exp(at*b.imag);