[fusl] clang-format fusl

fusl/src/math/acosh.c

 #include "libm.h"
 
-#if FLT_EVAL_METHOD==2
+#if FLT_EVAL_METHOD == 2
 #undef sqrt
 #define sqrt sqrtl
 #endif
 
 /* acosh(x) = log(x + sqrt(x*x-1)) */
-double acosh(double x)
-{
-        union {double f; uint64_t i;} u = {.f = x};
-        unsigned e = u.i >> 52 & 0x7ff;
+double acosh(double x) {
+  union {
+    double f;
+    uint64_t i;
+  } u = {.f = x};
+  unsigned e = u.i >> 52 & 0x7ff;
 
-        /* x < 1 domain error is handled in the called functions */
+  /* x < 1 domain error is handled in the called functions */
 
-        if (e < 0x3ff + 1)
-                /* |x| < 2, up to 2ulp error in [1,1.125] */
-                return log1p(x-1 + sqrt((x-1)*(x-1)+2*(x-1)));
-        if (e < 0x3ff + 26)
-                /* |x| < 0x1p26 */
-                return log(2*x - 1/(x+sqrt(x*x-1)));
-        /* |x| >= 0x1p26 or nan */
-        return log(x) + 0.693147180559945309417232121458176568;
+  if (e < 0x3ff + 1)
+    /* |x| < 2, up to 2ulp error in [1,1.125] */
+    return log1p(x - 1 + sqrt((x - 1) * (x - 1) + 2 * (x - 1)));
+  if (e < 0x3ff + 26)
+    /* |x| < 0x1p26 */
+    return log(2 * x - 1 / (x + sqrt(x * x - 1)));
+  /* |x| >= 0x1p26 or nan */
+  return log(x) + 0.693147180559945309417232121458176568;
 }