Index: fusl/src/math/nexttoward.c |
diff --git a/fusl/src/math/nexttoward.c b/fusl/src/math/nexttoward.c |
index 827ee5c3c23ab0d9c33ff4205835bf068f0320e8..7cdee83332e28b11e89731022c0d2db115ebbb93 100644 |
--- a/fusl/src/math/nexttoward.c |
+++ b/fusl/src/math/nexttoward.c |
@@ -1,42 +1,43 @@ |
#include "libm.h" |
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024 |
-double nexttoward(double x, long double y) |
-{ |
- return nextafter(x, y); |
+double nexttoward(double x, long double y) { |
+ return nextafter(x, y); |
} |
#else |
-double nexttoward(double x, long double y) |
-{ |
- union {double f; uint64_t i;} ux = {x}; |
- int e; |
+double nexttoward(double x, long double y) { |
+ union { |
+ double f; |
+ uint64_t i; |
+ } ux = {x}; |
+ int e; |
- if (isnan(x) || isnan(y)) |
- return x + y; |
- if (x == y) |
- return y; |
- if (x == 0) { |
- ux.i = 1; |
- if (signbit(y)) |
- ux.i |= 1ULL<<63; |
- } else if (x < y) { |
- if (signbit(x)) |
- ux.i--; |
- else |
- ux.i++; |
- } else { |
- if (signbit(x)) |
- ux.i++; |
- else |
- ux.i--; |
- } |
- e = ux.i>>52 & 0x7ff; |
- /* raise overflow if ux.f is infinite and x is finite */ |
- if (e == 0x7ff) |
- FORCE_EVAL(x+x); |
- /* raise underflow if ux.f is subnormal or zero */ |
- if (e == 0) |
- FORCE_EVAL(x*x + ux.f*ux.f); |
- return ux.f; |
+ if (isnan(x) || isnan(y)) |
+ return x + y; |
+ if (x == y) |
+ return y; |
+ if (x == 0) { |
+ ux.i = 1; |
+ if (signbit(y)) |
+ ux.i |= 1ULL << 63; |
+ } else if (x < y) { |
+ if (signbit(x)) |
+ ux.i--; |
+ else |
+ ux.i++; |
+ } else { |
+ if (signbit(x)) |
+ ux.i++; |
+ else |
+ ux.i--; |
+ } |
+ e = ux.i >> 52 & 0x7ff; |
+ /* raise overflow if ux.f is infinite and x is finite */ |
+ if (e == 0x7ff) |
+ FORCE_EVAL(x + x); |
+ /* raise underflow if ux.f is subnormal or zero */ |
+ if (e == 0) |
+ FORCE_EVAL(x * x + ux.f * ux.f); |
+ return ux.f; |
} |
#endif |