if (xm1 == 0.0)
return xm1;
- x = xm1 + 1.0L;
+ x = xm1 + 1.0;
/* Test for domain errors. */
- if (x <= 0.0L) {
- if (x == 0.0L)
+ if (x <= 0.0) {
+ if (x == 0.0)
return -INFINITY;
return NAN;
}
if (e > 2 || e < -2) {
if (x < SQRTH) { /* 2(2x-1)/(2x+1) */
e -= 1;
- z = x - 0.5L;
- y = 0.5L * z + 0.5L;
+ z = x - 0.5;
+ y = 0.5 * z + 0.5;
} else { /* 2 (x-1)/(x+1) */
- z = x - 0.5L;
- z -= 0.5L;
- y = 0.5L * x + 0.5L;
+ z = x - 0.5;
+ z -= 0.5;
+ y = 0.5 * x + 0.5;
}
x = z / y;
z = x*x;
if (x < SQRTH) {
e -= 1;
if (e != 0)
- x = 2.0 * x - 1.0L;
+ x = 2.0 * x - 1.0;
else
x = xm1;
} else {
if (e != 0)
- x = x - 1.0L;
+ x = x - 1.0;
else
x = xm1;
}