Index: fusl/src/math/sincosf.c |
diff --git a/fusl/src/math/sincosf.c b/fusl/src/math/sincosf.c |
index f8ca7232cfb371da2be6c3c87f079515fa4c01e1..11feeabf5705289b3fd6814de91e07ff784ce993 100644 |
--- a/fusl/src/math/sincosf.c |
+++ b/fusl/src/math/sincosf.c |
@@ -18,100 +18,98 @@ |
#include "libm.h" |
/* Small multiples of pi/2 rounded to double precision. */ |
-static const double |
-s1pio2 = 1*M_PI_2, /* 0x3FF921FB, 0x54442D18 */ |
-s2pio2 = 2*M_PI_2, /* 0x400921FB, 0x54442D18 */ |
-s3pio2 = 3*M_PI_2, /* 0x4012D97C, 0x7F3321D2 */ |
-s4pio2 = 4*M_PI_2; /* 0x401921FB, 0x54442D18 */ |
+static const double s1pio2 = 1 * M_PI_2, /* 0x3FF921FB, 0x54442D18 */ |
+ s2pio2 = 2 * M_PI_2, /* 0x400921FB, 0x54442D18 */ |
+ s3pio2 = 3 * M_PI_2, /* 0x4012D97C, 0x7F3321D2 */ |
+ s4pio2 = 4 * M_PI_2; /* 0x401921FB, 0x54442D18 */ |
-void sincosf(float x, float *sin, float *cos) |
-{ |
- double y; |
- float_t s, c; |
- uint32_t ix; |
- unsigned n, sign; |
+void sincosf(float x, float* sin, float* cos) { |
+ double y; |
+ float_t s, c; |
+ uint32_t ix; |
+ unsigned n, sign; |
- GET_FLOAT_WORD(ix, x); |
- sign = ix >> 31; |
- ix &= 0x7fffffff; |
+ GET_FLOAT_WORD(ix, x); |
+ sign = ix >> 31; |
+ ix &= 0x7fffffff; |
- /* |x| ~<= pi/4 */ |
- if (ix <= 0x3f490fda) { |
- /* |x| < 2**-12 */ |
- if (ix < 0x39800000) { |
- /* raise inexact if x!=0 and underflow if subnormal */ |
- FORCE_EVAL(ix < 0x00100000 ? x/0x1p120f : x+0x1p120f); |
- *sin = x; |
- *cos = 1.0f; |
- return; |
- } |
- *sin = __sindf(x); |
- *cos = __cosdf(x); |
- return; |
- } |
+ /* |x| ~<= pi/4 */ |
+ if (ix <= 0x3f490fda) { |
+ /* |x| < 2**-12 */ |
+ if (ix < 0x39800000) { |
+ /* raise inexact if x!=0 and underflow if subnormal */ |
+ FORCE_EVAL(ix < 0x00100000 ? x / 0x1p120f : x + 0x1p120f); |
+ *sin = x; |
+ *cos = 1.0f; |
+ return; |
+ } |
+ *sin = __sindf(x); |
+ *cos = __cosdf(x); |
+ return; |
+ } |
- /* |x| ~<= 5*pi/4 */ |
- if (ix <= 0x407b53d1) { |
- if (ix <= 0x4016cbe3) { /* |x| ~<= 3pi/4 */ |
- if (sign) { |
- *sin = -__cosdf(x + s1pio2); |
- *cos = __sindf(x + s1pio2); |
- } else { |
- *sin = __cosdf(s1pio2 - x); |
- *cos = __sindf(s1pio2 - x); |
- } |
- return; |
- } |
- /* -sin(x+c) is not correct if x+c could be 0: -0 vs +0 */ |
- *sin = -__sindf(sign ? x + s2pio2 : x - s2pio2); |
- *cos = -__cosdf(sign ? x + s2pio2 : x - s2pio2); |
- return; |
- } |
+ /* |x| ~<= 5*pi/4 */ |
+ if (ix <= 0x407b53d1) { |
+ if (ix <= 0x4016cbe3) { /* |x| ~<= 3pi/4 */ |
+ if (sign) { |
+ *sin = -__cosdf(x + s1pio2); |
+ *cos = __sindf(x + s1pio2); |
+ } else { |
+ *sin = __cosdf(s1pio2 - x); |
+ *cos = __sindf(s1pio2 - x); |
+ } |
+ return; |
+ } |
+ /* -sin(x+c) is not correct if x+c could be 0: -0 vs +0 */ |
+ *sin = -__sindf(sign ? x + s2pio2 : x - s2pio2); |
+ *cos = -__cosdf(sign ? x + s2pio2 : x - s2pio2); |
+ return; |
+ } |
- /* |x| ~<= 9*pi/4 */ |
- if (ix <= 0x40e231d5) { |
- if (ix <= 0x40afeddf) { /* |x| ~<= 7*pi/4 */ |
- if (sign) { |
- *sin = __cosdf(x + s3pio2); |
- *cos = -__sindf(x + s3pio2); |
- } else { |
- *sin = -__cosdf(x - s3pio2); |
- *cos = __sindf(x - s3pio2); |
- } |
- return; |
- } |
- *sin = __sindf(sign ? x + s4pio2 : x - s4pio2); |
- *cos = __cosdf(sign ? x + s4pio2 : x - s4pio2); |
- return; |
- } |
+ /* |x| ~<= 9*pi/4 */ |
+ if (ix <= 0x40e231d5) { |
+ if (ix <= 0x40afeddf) { /* |x| ~<= 7*pi/4 */ |
+ if (sign) { |
+ *sin = __cosdf(x + s3pio2); |
+ *cos = -__sindf(x + s3pio2); |
+ } else { |
+ *sin = -__cosdf(x - s3pio2); |
+ *cos = __sindf(x - s3pio2); |
+ } |
+ return; |
+ } |
+ *sin = __sindf(sign ? x + s4pio2 : x - s4pio2); |
+ *cos = __cosdf(sign ? x + s4pio2 : x - s4pio2); |
+ return; |
+ } |
- /* sin(Inf or NaN) is NaN */ |
- if (ix >= 0x7f800000) { |
- *sin = *cos = x - x; |
- return; |
- } |
+ /* sin(Inf or NaN) is NaN */ |
+ if (ix >= 0x7f800000) { |
+ *sin = *cos = x - x; |
+ return; |
+ } |
- /* general argument reduction needed */ |
- n = __rem_pio2f(x, &y); |
- s = __sindf(y); |
- c = __cosdf(y); |
- switch (n&3) { |
- case 0: |
- *sin = s; |
- *cos = c; |
- break; |
- case 1: |
- *sin = c; |
- *cos = -s; |
- break; |
- case 2: |
- *sin = -s; |
- *cos = -c; |
- break; |
- case 3: |
- default: |
- *sin = -c; |
- *cos = s; |
- break; |
- } |
+ /* general argument reduction needed */ |
+ n = __rem_pio2f(x, &y); |
+ s = __sindf(y); |
+ c = __cosdf(y); |
+ switch (n & 3) { |
+ case 0: |
+ *sin = s; |
+ *cos = c; |
+ break; |
+ case 1: |
+ *sin = c; |
+ *cos = -s; |
+ break; |
+ case 2: |
+ *sin = -s; |
+ *cos = -c; |
+ break; |
+ case 3: |
+ default: |
+ *sin = -c; |
+ *cos = s; |
+ break; |
+ } |
} |