Python code coverage for Python/pymath.c

#	count	content
1	n/a	#include "Python.h"
2	n/a
3	n/a	#ifdef X87_DOUBLE_ROUNDING
4	n/a	/* On x86 platforms using an x87 FPU, this function is called from the
5	n/a	Py_FORCE_DOUBLE macro (defined in pymath.h) to force a floating-point
6	n/a	number out of an 80-bit x87 FPU register and into a 64-bit memory location,
7	n/a	thus rounding from extended precision to double precision. */
8	n/a	double _Py_force_double(double x)
9	n/a	{
10	n/a	volatile double y;
11	n/a	y = x;
12	n/a	return y;
13	n/a	}
14	n/a	#endif
15	n/a
16	n/a	#ifdef HAVE_GCC_ASM_FOR_X87
17	n/a
18	n/a	/* inline assembly for getting and setting the 387 FPU control word on
19	n/a	gcc/x86 */
20	n/a
21	n/a	unsigned short _Py_get_387controlword(void) {
22	n/a	unsigned short cw;
23	n/a	__asm__ __volatile__ ("fnstcw %0" : "=m" (cw));
24	n/a	return cw;
25	n/a	}
26	n/a
27	n/a	void _Py_set_387controlword(unsigned short cw) {
28	n/a	__asm__ __volatile__ ("fldcw %0" : : "m" (cw));
29	n/a	}
30	n/a
31	n/a	#endif
32	n/a
33	n/a
34	n/a	#ifndef HAVE_HYPOT
35	n/a	double hypot(double x, double y)
36	n/a	{
37	n/a	double yx;
38	n/a
39	n/a	x = fabs(x);
40	n/a	y = fabs(y);
41	n/a	if (x < y) {
42	n/a	double temp = x;
43	n/a	x = y;
44	n/a	y = temp;
45	n/a	}
46	n/a	if (x == 0.)
47	n/a	return 0.;
48	n/a	else {
49	n/a	yx = y/x;
50	n/a	return xsqrt(1.+yxyx);
51	n/a	}
52	n/a	}
53	n/a	#endif /* HAVE_HYPOT */
54	n/a
55	n/a	#ifndef HAVE_COPYSIGN
56	n/a	double
57	n/a	copysign(double x, double y)
58	n/a	{
59	n/a	/* use atan2 to distinguish -0. from 0. */
60	n/a	if (y > 0. \|\| (y == 0. && atan2(y, -1.) > 0.)) {
61	n/a	return fabs(x);
62	n/a	} else {
63	n/a	return -fabs(x);
64	n/a	}
65	n/a	}
66	n/a	#endif /* HAVE_COPYSIGN */
67	n/a
68	n/a	#ifndef HAVE_ROUND
69	n/a	double
70	n/a	round(double x)
71	n/a	{
72	n/a	double absx, y;
73	n/a	absx = fabs(x);
74	n/a	y = floor(absx);
75	n/a	if (absx - y >= 0.5)
76	n/a	y += 1.0;
77	n/a	return copysign(y, x);
78	n/a	}
79	n/a	#endif /* HAVE_ROUND */