Index: fusl/src/complex/cexpf.c |
diff --git a/fusl/src/complex/cexpf.c b/fusl/src/complex/cexpf.c |
index 1a09964cbb52df1cc68b857e459450cf6d98910d..e71e20daa853cbba2f44be9838cf724c6d864ba6 100644 |
--- a/fusl/src/complex/cexpf.c |
+++ b/fusl/src/complex/cexpf.c |
@@ -27,57 +27,55 @@ |
#include "libm.h" |
-static const uint32_t |
-exp_ovfl = 0x42b17218, /* MAX_EXP * ln2 ~= 88.722839355 */ |
-cexp_ovfl = 0x43400074; /* (MAX_EXP - MIN_DENORM_EXP) * ln2 */ |
+static const uint32_t exp_ovfl = 0x42b17218, /* MAX_EXP * ln2 ~= 88.722839355 */ |
+ cexp_ovfl = 0x43400074; /* (MAX_EXP - MIN_DENORM_EXP) * ln2 */ |
-float complex cexpf(float complex z) |
-{ |
- float x, y, exp_x; |
- uint32_t hx, hy; |
+float complex cexpf(float complex z) { |
+ float x, y, exp_x; |
+ uint32_t hx, hy; |
- x = crealf(z); |
- y = cimagf(z); |
+ x = crealf(z); |
+ y = cimagf(z); |
- GET_FLOAT_WORD(hy, y); |
- hy &= 0x7fffffff; |
+ GET_FLOAT_WORD(hy, y); |
+ hy &= 0x7fffffff; |
- /* cexp(x + I 0) = exp(x) + I 0 */ |
- if (hy == 0) |
- return CMPLXF(expf(x), y); |
- GET_FLOAT_WORD(hx, x); |
- /* cexp(0 + I y) = cos(y) + I sin(y) */ |
- if ((hx & 0x7fffffff) == 0) |
- return CMPLXF(cosf(y), sinf(y)); |
+ /* cexp(x + I 0) = exp(x) + I 0 */ |
+ if (hy == 0) |
+ return CMPLXF(expf(x), y); |
+ GET_FLOAT_WORD(hx, x); |
+ /* cexp(0 + I y) = cos(y) + I sin(y) */ |
+ if ((hx & 0x7fffffff) == 0) |
+ return CMPLXF(cosf(y), sinf(y)); |
- if (hy >= 0x7f800000) { |
- if ((hx & 0x7fffffff) != 0x7f800000) { |
- /* cexp(finite|NaN +- I Inf|NaN) = NaN + I NaN */ |
- return CMPLXF(y - y, y - y); |
- } else if (hx & 0x80000000) { |
- /* cexp(-Inf +- I Inf|NaN) = 0 + I 0 */ |
- return CMPLXF(0.0, 0.0); |
- } else { |
- /* cexp(+Inf +- I Inf|NaN) = Inf + I NaN */ |
- return CMPLXF(x, y - y); |
- } |
- } |
+ if (hy >= 0x7f800000) { |
+ if ((hx & 0x7fffffff) != 0x7f800000) { |
+ /* cexp(finite|NaN +- I Inf|NaN) = NaN + I NaN */ |
+ return CMPLXF(y - y, y - y); |
+ } else if (hx & 0x80000000) { |
+ /* cexp(-Inf +- I Inf|NaN) = 0 + I 0 */ |
+ return CMPLXF(0.0, 0.0); |
+ } else { |
+ /* cexp(+Inf +- I Inf|NaN) = Inf + I NaN */ |
+ return CMPLXF(x, y - y); |
+ } |
+ } |
- if (hx >= exp_ovfl && hx <= cexp_ovfl) { |
- /* |
- * x is between 88.7 and 192, so we must scale to avoid |
- * overflow in expf(x). |
- */ |
- return __ldexp_cexpf(z, 0); |
- } else { |
- /* |
- * Cases covered here: |
- * - x < exp_ovfl and exp(x) won't overflow (common case) |
- * - x > cexp_ovfl, so exp(x) * s overflows for all s > 0 |
- * - x = +-Inf (generated by exp()) |
- * - x = NaN (spurious inexact exception from y) |
- */ |
- exp_x = expf(x); |
- return CMPLXF(exp_x * cosf(y), exp_x * sinf(y)); |
- } |
+ if (hx >= exp_ovfl && hx <= cexp_ovfl) { |
+ /* |
+ * x is between 88.7 and 192, so we must scale to avoid |
+ * overflow in expf(x). |
+ */ |
+ return __ldexp_cexpf(z, 0); |
+ } else { |
+ /* |
+ * Cases covered here: |
+ * - x < exp_ovfl and exp(x) won't overflow (common case) |
+ * - x > cexp_ovfl, so exp(x) * s overflows for all s > 0 |
+ * - x = +-Inf (generated by exp()) |
+ * - x = NaN (spurious inexact exception from y) |
+ */ |
+ exp_x = expf(x); |
+ return CMPLXF(exp_x * cosf(y), exp_x * sinf(y)); |
+ } |
} |