[fusl] clang-format fusl

fusl/src/math/atanhf.c

 #include "libm.h"
 
 /* atanh(x) = log((1+x)/(1-x))/2 = log1p(2x/(1-x))/2 ~= x + x^3/3 + o(x^5) */
-float atanhf(float x)
-{
-        union {float f; uint32_t i;} u = {.f = x};
-        unsigned s = u.i >> 31;
-        float_t y;
+float atanhf(float x) {
+  union {
+    float f;
+    uint32_t i;
+  } u = {.f = x};
+  unsigned s = u.i >> 31;
+  float_t y;
 
-        /* |x| */
-        u.i &= 0x7fffffff;
-        y = u.f;
+  /* |x| */
+  u.i &= 0x7fffffff;
+  y = u.f;
 
-        if (u.i < 0x3f800000 - (1<<23)) {
-                if (u.i < 0x3f800000 - (32<<23)) {
-                        /* handle underflow */
-                        if (u.i < (1<<23))
-                                FORCE_EVAL((float)(y*y));
-                } else {
-                        /* |x| < 0.5, up to 1.7ulp error */
-                        y = 0.5f*log1pf(2*y + 2*y*y/(1-y));
-                }
-        } else {
-                /* avoid overflow */
-                y = 0.5f*log1pf(2*(y/(1-y)));
-        }
-        return s ? -y : y;
+  if (u.i < 0x3f800000 - (1 << 23)) {
+    if (u.i < 0x3f800000 - (32 << 23)) {
+      /* handle underflow */
+      if (u.i < (1 << 23))
+        FORCE_EVAL((float)(y * y));
+    } else {
+      /* |x| < 0.5, up to 1.7ulp error */
+      y = 0.5f * log1pf(2 * y + 2 * y * y / (1 - y));
+    }
+  } else {
+    /* avoid overflow */
+    y = 0.5f * log1pf(2 * (y / (1 - y)));
+  }
+  return s ? -y : y;
 }