13 #define local_abs(x) (((x) < 0) ? -(x) : (x))
24 	1.0f, 2.0f, 3.0f, 4.0f,
25 	5.0f, 6.0f, 7.0f, 8.0f, 9.0f,	/* numbers across the decade */
26 	3.14159265359f, 2.718281828f,	/* irrational numbers pi and e */
27 	123.4f,	0.025f,	0.10f,	1.875f	/* numbers with infinite */
46 	ieee754.u &= ~0x8000000000000000;	/* ignore the sign */  in isinf()
47 	return ((ieee754.u >> 52) == 0x7FF) &&  in isinf()
48 		((ieee754.u & 0x000fffffffffffff) == 0);  in isinf()
57 	ieee754.u &= ~0x8000000000000000;	/* ignore the sign */  in isnan()
58 	return ((ieee754.u >> 52) == 0x7FF) &&  in isnan()
59 		((ieee754.u & 0x000fffffffffffff) != 0);  in isnan()
66 	union { uint32_t u; float f; } ieee754;  in isinff()  member
67 	ieee754.f = x;  in isinff()
68 	ieee754.u &= ~0x80000000;		/* ignore the sign */  in isinff()
69 	return ((ieee754.u >> 23) == 0xFF) &&  in isinff()
70 		((ieee754.u & 0x7FFFFF) == 0);  in isinff()
77 	union { uint32_t u; float f; } ieee754;  in isnanf()  member
78 	ieee754.f = x;  in isnanf()
79 	ieee754.u &= ~0x80000000;		/* ignore the sign */  in isnanf()
80 	return ((ieee754.u >> 23) == 0xFF) &&  in isnanf()
81 		((ieee754.u & 0x7FFFFF) != 0);  in isnanf()
86 #define MAX_FLOAT_ERROR_PERCENT		(3.5e-5f)
99 	max_error = 0;  in ZTEST()
102 	zassert_true(sqrtf(0.0f) == 0.0f, "sqrtf(0.0)");  in ZTEST()
111 	zassert_true(isnanf(sqrtf(-10.0f)), "isnanf(sqrt(-10.0))");  in ZTEST()
113 	for (exponent = 1.0e-10f; exponent < 1.0e10f; exponent *= 10.0f) {  in ZTEST()
114 		for (i = 0; i < NUM_TEST_FLOATS; i++) {  in ZTEST()
118 			zassert_true((resf > 0.0f) && (resf < INFINITY),  in ZTEST()
120 			if ((resf > 0.0f) && (resf < INFINITY)) {  in ZTEST()
123 				if (error < 0.0f) {  in ZTEST()
137 				error = 0.0f;  in ZTEST()
143 	zassert_true(max_error < 0x03, "huge errors in sqrt implementation");  in ZTEST()
158 	max_error = 0;  in ZTEST()
173 		for (i = 0; i < NUM_TEST_DOUBLES; i++) {  in ZTEST()
202 	zassert_true(max_error < 0x04, "huge errors in sqrt implementation");  in ZTEST()