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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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20
Modules/cmathmodule.c
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@ -21,6 +21,22 @@
#define M_PI (3.141592653589793239)
#endif
#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
/* First, the C functions that do the real work */
/* constants */
@ -172,7 +188,7 @@ c_log(Py_complex x)
{
Py_complex r;
double l = hypot(x.real,x.imag);
r.imag = atan2(x.imag, x.real);
r.imag = ATAN2(x.imag, x.real);
r.real = log(l);
return r;
}
@ -188,7 +204,7 @@ c_log10(Py_complex x)
{
Py_complex r;
double l = hypot(x.real,x.imag);
r.imag = atan2(x.imag, x.real)/log(10.);
r.imag = ATAN2(x.imag, x.real)/log(10.);
r.real = log10(l);
return r;
}