M_PI_2
w = (M_PI_2 - creal(w)) - cimag(w) * I;
w = ((float)M_PI_2 - crealf(w)) - cimagf(w) * I;
w = M_PI_2 + 0.0 * I;
w = M_PI_2 + 0.0f * I;
p1pio2 = 1*M_PI_2, /* 0x3FF921FB, 0x54442D18 */
p2pio2 = 2*M_PI_2, /* 0x400921FB, 0x54442D18 */
p3pio2 = 3*M_PI_2, /* 0x4012D97C, 0x7F3321D2 */
p4pio2 = 4*M_PI_2; /* 0x401921FB, 0x54442D18 */
LIBM_CONST(M_PI_2),
TEST(M_PI_2);
TEST(cos(M_PI_2));
TEST(acos(cos(M_PI_2)));
TEST(sin(M_PI_2));
TEST(asin(sin(M_PI_2)));
TEST(sinh(M_PI_2));
TEST(asinh(sinh(M_PI_2)));
TEST(fdim(M_PI, M_PI_2));
TEST(fdim(M_PI, -M_PI_2));