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Unified Diff: fusl/src/complex/cexpf.c

Issue 1714623002: [fusl] clang-format fusl (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: headers too Created 4 years, 10 months ago
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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));
+ }
}

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