Format floating routines.

1 files changed, 258 insertions, 217 deletions

diff --git a/sysdeps/ieee754/dbl-64/s_erf.c b/sysdeps/ieee754/dbl-64/s_erf.c
index 0cf408c03c..aab4ed593e 100644
--- a/sysdeps/ieee754/dbl-64/s_erf.c
+++ b/sysdeps/ieee754/dbl-64/s_erf.c
@@ -116,157 +116,176 @@ static char rcsid[] = "$NetBSD: s_erf.c,v 1.8 1995/05/10 20:47:05 jtc Exp $";
 #include <math_private.h>
 
 static const double
-tiny	    = 1e-300,
-half=  5.00000000000000000000e-01, /* 0x3FE00000, 0x00000000 */
-one =  1.00000000000000000000e+00, /* 0x3FF00000, 0x00000000 */
-two =  2.00000000000000000000e+00, /* 0x40000000, 0x00000000 */
-	/* c = (float)0.84506291151 */
-erx =  8.45062911510467529297e-01, /* 0x3FEB0AC1, 0x60000000 */
+  tiny = 1e-300,
+  half = 5.00000000000000000000e-01, /* 0x3FE00000, 0x00000000 */
+  one = 1.00000000000000000000e+00, /* 0x3FF00000, 0x00000000 */
+  two = 2.00000000000000000000e+00, /* 0x40000000, 0x00000000 */
+/* c = (float)0.84506291151 */
+  erx = 8.45062911510467529297e-01, /* 0x3FEB0AC1, 0x60000000 */
 /*
  * Coefficients for approximation to  erf on [0,0.84375]
  */
-efx =  1.28379167095512586316e-01, /* 0x3FC06EBA, 0x8214DB69 */
-efx8=  1.02703333676410069053e+00, /* 0x3FF06EBA, 0x8214DB69 */
-pp[]  =  {1.28379167095512558561e-01, /* 0x3FC06EBA, 0x8214DB68 */
- -3.25042107247001499370e-01, /* 0xBFD4CD7D, 0x691CB913 */
- -2.84817495755985104766e-02, /* 0xBF9D2A51, 0xDBD7194F */
- -5.77027029648944159157e-03, /* 0xBF77A291, 0x236668E4 */
- -2.37630166566501626084e-05}, /* 0xBEF8EAD6, 0x120016AC */
-qq[]  =  {0.0, 3.97917223959155352819e-01, /* 0x3FD97779, 0xCDDADC09 */
-  6.50222499887672944485e-02, /* 0x3FB0A54C, 0x5536CEBA */
-  5.08130628187576562776e-03, /* 0x3F74D022, 0xC4D36B0F */
-  1.32494738004321644526e-04, /* 0x3F215DC9, 0x221C1A10 */
- -3.96022827877536812320e-06}, /* 0xBED09C43, 0x42A26120 */
+  efx = 1.28379167095512586316e-01, /* 0x3FC06EBA, 0x8214DB69 */
+  efx8 = 1.02703333676410069053e+00, /* 0x3FF06EBA, 0x8214DB69 */
+  pp[] = { 1.28379167095512558561e-01, /* 0x3FC06EBA, 0x8214DB68 */
+	   -3.25042107247001499370e-01, /* 0xBFD4CD7D, 0x691CB913 */
+	   -2.84817495755985104766e-02, /* 0xBF9D2A51, 0xDBD7194F */
+	   -5.77027029648944159157e-03, /* 0xBF77A291, 0x236668E4 */
+	   -2.37630166566501626084e-05 }, /* 0xBEF8EAD6, 0x120016AC */
+  qq[] = { 0.0, 3.97917223959155352819e-01, /* 0x3FD97779, 0xCDDADC09 */
+	   6.50222499887672944485e-02, /* 0x3FB0A54C, 0x5536CEBA */
+	   5.08130628187576562776e-03, /* 0x3F74D022, 0xC4D36B0F */
+	   1.32494738004321644526e-04, /* 0x3F215DC9, 0x221C1A10 */
+	   -3.96022827877536812320e-06 }, /* 0xBED09C43, 0x42A26120 */
 /*
  * Coefficients for approximation to  erf  in [0.84375,1.25]
  */
-pa[]  = {-2.36211856075265944077e-03, /* 0xBF6359B8, 0xBEF77538 */
-  4.14856118683748331666e-01, /* 0x3FDA8D00, 0xAD92B34D */
- -3.72207876035701323847e-01, /* 0xBFD7D240, 0xFBB8C3F1 */
-  3.18346619901161753674e-01, /* 0x3FD45FCA, 0x805120E4 */
- -1.10894694282396677476e-01, /* 0xBFBC6398, 0x3D3E28EC */
-  3.54783043256182359371e-02, /* 0x3FA22A36, 0x599795EB */
- -2.16637559486879084300e-03}, /* 0xBF61BF38, 0x0A96073F */
-qa[]  =  {0.0, 1.06420880400844228286e-01, /* 0x3FBB3E66, 0x18EEE323 */
-  5.40397917702171048937e-01, /* 0x3FE14AF0, 0x92EB6F33 */
-  7.18286544141962662868e-02, /* 0x3FB2635C, 0xD99FE9A7 */
-  1.26171219808761642112e-01, /* 0x3FC02660, 0xE763351F */
-  1.36370839120290507362e-02, /* 0x3F8BEDC2, 0x6B51DD1C */
-  1.19844998467991074170e-02}, /* 0x3F888B54, 0x5735151D */
+  pa[] = { -2.36211856075265944077e-03, /* 0xBF6359B8, 0xBEF77538 */
+	   4.14856118683748331666e-01, /* 0x3FDA8D00, 0xAD92B34D */
+	   -3.72207876035701323847e-01, /* 0xBFD7D240, 0xFBB8C3F1 */
+	   3.18346619901161753674e-01, /* 0x3FD45FCA, 0x805120E4 */
+	   -1.10894694282396677476e-01, /* 0xBFBC6398, 0x3D3E28EC */
+	   3.54783043256182359371e-02, /* 0x3FA22A36, 0x599795EB */
+	   -2.16637559486879084300e-03 }, /* 0xBF61BF38, 0x0A96073F */
+  qa[] = { 0.0, 1.06420880400844228286e-01, /* 0x3FBB3E66, 0x18EEE323 */
+	   5.40397917702171048937e-01, /* 0x3FE14AF0, 0x92EB6F33 */
+	   7.18286544141962662868e-02, /* 0x3FB2635C, 0xD99FE9A7 */
+	   1.26171219808761642112e-01, /* 0x3FC02660, 0xE763351F */
+	   1.36370839120290507362e-02, /* 0x3F8BEDC2, 0x6B51DD1C */
+	   1.19844998467991074170e-02 }, /* 0x3F888B54, 0x5735151D */
 /*
  * Coefficients for approximation to  erfc in [1.25,1/0.35]
  */
-ra[]  = {-9.86494403484714822705e-03, /* 0xBF843412, 0x600D6435 */
- -6.93858572707181764372e-01, /* 0xBFE63416, 0xE4BA7360 */
- -1.05586262253232909814e+01, /* 0xC0251E04, 0x41B0E726 */
- -6.23753324503260060396e+01, /* 0xC04F300A, 0xE4CBA38D */
- -1.62396669462573470355e+02, /* 0xC0644CB1, 0x84282266 */
- -1.84605092906711035994e+02, /* 0xC067135C, 0xEBCCABB2 */
- -8.12874355063065934246e+01, /* 0xC0545265, 0x57E4D2F2 */
- -9.81432934416914548592e+00}, /* 0xC023A0EF, 0xC69AC25C */
-sa[]  =  {0.0,1.96512716674392571292e+01, /* 0x4033A6B9, 0xBD707687 */
-  1.37657754143519042600e+02, /* 0x4061350C, 0x526AE721 */
-  4.34565877475229228821e+02, /* 0x407B290D, 0xD58A1A71 */
-  6.45387271733267880336e+02, /* 0x40842B19, 0x21EC2868 */
-  4.29008140027567833386e+02, /* 0x407AD021, 0x57700314 */
-  1.08635005541779435134e+02, /* 0x405B28A3, 0xEE48AE2C */
-  6.57024977031928170135e+00, /* 0x401A47EF, 0x8E484A93 */
- -6.04244152148580987438e-02}, /* 0xBFAEEFF2, 0xEE749A62 */
+  ra[] = { -9.86494403484714822705e-03, /* 0xBF843412, 0x600D6435 */
+	   -6.93858572707181764372e-01, /* 0xBFE63416, 0xE4BA7360 */
+	   -1.05586262253232909814e+01, /* 0xC0251E04, 0x41B0E726 */
+	   -6.23753324503260060396e+01, /* 0xC04F300A, 0xE4CBA38D */
+	   -1.62396669462573470355e+02, /* 0xC0644CB1, 0x84282266 */
+	   -1.84605092906711035994e+02, /* 0xC067135C, 0xEBCCABB2 */
+	   -8.12874355063065934246e+01, /* 0xC0545265, 0x57E4D2F2 */
+	   -9.81432934416914548592e+00 }, /* 0xC023A0EF, 0xC69AC25C */
+  sa[] = { 0.0, 1.96512716674392571292e+01, /* 0x4033A6B9, 0xBD707687 */
+	   1.37657754143519042600e+02, /* 0x4061350C, 0x526AE721 */
+	   4.34565877475229228821e+02, /* 0x407B290D, 0xD58A1A71 */
+	   6.45387271733267880336e+02, /* 0x40842B19, 0x21EC2868 */
+	   4.29008140027567833386e+02, /* 0x407AD021, 0x57700314 */
+	   1.08635005541779435134e+02, /* 0x405B28A3, 0xEE48AE2C */
+	   6.57024977031928170135e+00, /* 0x401A47EF, 0x8E484A93 */
+	   -6.04244152148580987438e-02 }, /* 0xBFAEEFF2, 0xEE749A62 */
 /*
  * Coefficients for approximation to  erfc in [1/.35,28]
  */
-rb[]  = {-9.86494292470009928597e-03, /* 0xBF843412, 0x39E86F4A */
- -7.99283237680523006574e-01, /* 0xBFE993BA, 0x70C285DE */
- -1.77579549177547519889e+01, /* 0xC031C209, 0x555F995A */
- -1.60636384855821916062e+02, /* 0xC064145D, 0x43C5ED98 */
- -6.37566443368389627722e+02, /* 0xC083EC88, 0x1375F228 */
- -1.02509513161107724954e+03, /* 0xC0900461, 0x6A2E5992 */
- -4.83519191608651397019e+02}, /* 0xC07E384E, 0x9BDC383F */
-sb[]  =  {0.0,3.03380607434824582924e+01, /* 0x403E568B, 0x261D5190 */
-  3.25792512996573918826e+02, /* 0x40745CAE, 0x221B9F0A */
-  1.53672958608443695994e+03, /* 0x409802EB, 0x189D5118 */
-  3.19985821950859553908e+03, /* 0x40A8FFB7, 0x688C246A */
-  2.55305040643316442583e+03, /* 0x40A3F219, 0xCEDF3BE6 */
-  4.74528541206955367215e+02, /* 0x407DA874, 0xE79FE763 */
- -2.24409524465858183362e+01}; /* 0xC03670E2, 0x42712D62 */
+  rb[] = { -9.86494292470009928597e-03, /* 0xBF843412, 0x39E86F4A */
+	   -7.99283237680523006574e-01, /* 0xBFE993BA, 0x70C285DE */
+	   -1.77579549177547519889e+01, /* 0xC031C209, 0x555F995A */
+	   -1.60636384855821916062e+02, /* 0xC064145D, 0x43C5ED98 */
+	   -6.37566443368389627722e+02, /* 0xC083EC88, 0x1375F228 */
+	   -1.02509513161107724954e+03, /* 0xC0900461, 0x6A2E5992 */
+	   -4.83519191608651397019e+02 }, /* 0xC07E384E, 0x9BDC383F */
+  sb[] = { 0.0, 3.03380607434824582924e+01, /* 0x403E568B, 0x261D5190 */
+	   3.25792512996573918826e+02, /* 0x40745CAE, 0x221B9F0A */
+	   1.53672958608443695994e+03, /* 0x409802EB, 0x189D5118 */
+	   3.19985821950859553908e+03, /* 0x40A8FFB7, 0x688C246A */
+	   2.55305040643316442583e+03, /* 0x40A3F219, 0xCEDF3BE6 */
+	   4.74528541206955367215e+02, /* 0x407DA874, 0xE79FE763 */
+	   -2.24409524465858183362e+01 }; /* 0xC03670E2, 0x42712D62 */
 
-double __erf(double x)
+double
+__erf (double x)
 {
-	int32_t hx,ix,i;
-	double R,S,P,Q,s,y,z,r;
-	GET_HIGH_WORD(hx,x);
-	ix = hx&0x7fffffff;
-	if(ix>=0x7ff00000) {		/* erf(nan)=nan */
-	    i = ((u_int32_t)hx>>31)<<1;
-	    return (double)(1-i)+one/x;	/* erf(+-inf)=+-1 */
-	}
+  int32_t hx, ix, i;
+  double R, S, P, Q, s, y, z, r;
+  GET_HIGH_WORD (hx, x);
+  ix = hx & 0x7fffffff;
+  if (ix >= 0x7ff00000)                 /* erf(nan)=nan */
+    {
+      i = ((u_int32_t) hx >> 31) << 1;
+      return (double) (1 - i) + one / x; /* erf(+-inf)=+-1 */
+    }
 
-	if(ix < 0x3feb0000) {		/* |x|<0.84375 */
-	    double r1,r2,s1,s2,s3,z2,z4;
-	    if(ix < 0x3e300000) { 	/* |x|<2**-28 */
-	        if (ix < 0x00800000)
-		    return 0.125*(8.0*x+efx8*x);  /*avoid underflow */
-		return x + efx*x;
-	    }
-	    z = x*x;
-	    r1 = pp[0]+z*pp[1]; z2=z*z;
-	    r2 = pp[2]+z*pp[3]; z4=z2*z2;
-	    s1 = one+z*qq[1];
-	    s2 = qq[2]+z*qq[3];
-	    s3 = qq[4]+z*qq[5];
-            r = r1 + z2*r2 + z4*pp[4];
-	    s  = s1 + z2*s2 + z4*s3;
-	    y = r/s;
-	    return x + x*y;
-	}
-	if(ix < 0x3ff40000) {		/* 0.84375 <= |x| < 1.25 */
-	    double s2,s4,s6,P1,P2,P3,P4,Q1,Q2,Q3,Q4;
-	    s = fabs(x)-one;
-	    P1 = pa[0]+s*pa[1]; s2=s*s;
-	    Q1 = one+s*qa[1];   s4=s2*s2;
-	    P2 = pa[2]+s*pa[3]; s6=s4*s2;
-	    Q2 = qa[2]+s*qa[3];
-	    P3 = pa[4]+s*pa[5];
-	    Q3 = qa[4]+s*qa[5];
-	    P4 = pa[6];
-	    Q4 = qa[6];
-	    P = P1 + s2*P2 + s4*P3 + s6*P4;
-	    Q = Q1 + s2*Q2 + s4*Q3 + s6*Q4;
-	    if(hx>=0) return erx + P/Q; else return -erx - P/Q;
-	}
-	if (ix >= 0x40180000) {		/* inf>|x|>=6 */
-	    if(hx>=0) return one-tiny; else return tiny-one;
-	}
-	x = fabs(x);
- 	s = one/(x*x);
-	if(ix< 0x4006DB6E) {	/* |x| < 1/0.35 */
-	    double R1,R2,R3,R4,S1,S2,S3,S4,s2,s4,s6,s8;
-	    R1 = ra[0]+s*ra[1];s2 = s*s;
-	    S1 = one+s*sa[1];  s4 = s2*s2;
-	    R2 = ra[2]+s*ra[3];s6 = s4*s2;
-	    S2 = sa[2]+s*sa[3];s8 = s4*s4;
-	    R3 = ra[4]+s*ra[5];
-	    S3 = sa[4]+s*sa[5];
-	    R4 = ra[6]+s*ra[7];
-	    S4 = sa[6]+s*sa[7];
-	    R = R1 + s2*R2 + s4*R3 + s6*R4;
-	    S = S1 + s2*S2 + s4*S3 + s6*S4 + s8*sa[8];
-	} else {	/* |x| >= 1/0.35 */
-	    double R1,R2,R3,S1,S2,S3,S4,s2,s4,s6;
-	    R1 = rb[0]+s*rb[1];s2 = s*s;
-	    S1 = one+s*sb[1];  s4 = s2*s2;
-	    R2 = rb[2]+s*rb[3];s6 = s4*s2;
-	    S2 = sb[2]+s*sb[3];
-	    R3 = rb[4]+s*rb[5];
-	    S3 = sb[4]+s*sb[5];
-	    S4 = sb[6]+s*sb[7];
-	    R = R1 + s2*R2 + s4*R3 + s6*rb[6];
-	    S = S1 + s2*S2 + s4*S3 + s6*S4;
+  if (ix < 0x3feb0000)                  /* |x|<0.84375 */
+    {
+      double r1, r2, s1, s2, s3, z2, z4;
+      if (ix < 0x3e300000)              /* |x|<2**-28 */
+	{
+	  if (ix < 0x00800000)
+	    return 0.125 * (8.0 * x + efx8 * x);  /*avoid underflow */
+	  return x + efx * x;
 	}
-	z  = x;
-	SET_LOW_WORD(z,0);
-	r  =  __ieee754_exp(-z*z-0.5625)*__ieee754_exp((z-x)*(z+x)+R/S);
-	if(hx>=0) return one-r/x; else return  r/x-one;
+      z = x * x;
+      r1 = pp[0] + z * pp[1]; z2 = z * z;
+      r2 = pp[2] + z * pp[3]; z4 = z2 * z2;
+      s1 = one + z * qq[1];
+      s2 = qq[2] + z * qq[3];
+      s3 = qq[4] + z * qq[5];
+      r = r1 + z2 * r2 + z4 * pp[4];
+      s = s1 + z2 * s2 + z4 * s3;
+      y = r / s;
+      return x + x * y;
+    }
+  if (ix < 0x3ff40000)                  /* 0.84375 <= |x| < 1.25 */
+    {
+      double s2, s4, s6, P1, P2, P3, P4, Q1, Q2, Q3, Q4;
+      s = fabs (x) - one;
+      P1 = pa[0] + s * pa[1]; s2 = s * s;
+      Q1 = one + s * qa[1];   s4 = s2 * s2;
+      P2 = pa[2] + s * pa[3]; s6 = s4 * s2;
+      Q2 = qa[2] + s * qa[3];
+      P3 = pa[4] + s * pa[5];
+      Q3 = qa[4] + s * qa[5];
+      P4 = pa[6];
+      Q4 = qa[6];
+      P = P1 + s2 * P2 + s4 * P3 + s6 * P4;
+      Q = Q1 + s2 * Q2 + s4 * Q3 + s6 * Q4;
+      if (hx >= 0)
+	return erx + P / Q;
+      else
+	return -erx - P / Q;
+    }
+  if (ix >= 0x40180000)                 /* inf>|x|>=6 */
+    {
+      if (hx >= 0)
+	return one - tiny;
+      else
+	return tiny - one;
+    }
+  x = fabs (x);
+  s = one / (x * x);
+  if (ix < 0x4006DB6E)          /* |x| < 1/0.35 */
+    {
+      double R1, R2, R3, R4, S1, S2, S3, S4, s2, s4, s6, s8;
+      R1 = ra[0] + s * ra[1]; s2 = s * s;
+      S1 = one + s * sa[1];  s4 = s2 * s2;
+      R2 = ra[2] + s * ra[3]; s6 = s4 * s2;
+      S2 = sa[2] + s * sa[3]; s8 = s4 * s4;
+      R3 = ra[4] + s * ra[5];
+      S3 = sa[4] + s * sa[5];
+      R4 = ra[6] + s * ra[7];
+      S4 = sa[6] + s * sa[7];
+      R = R1 + s2 * R2 + s4 * R3 + s6 * R4;
+      S = S1 + s2 * S2 + s4 * S3 + s6 * S4 + s8 * sa[8];
+    }
+  else                  /* |x| >= 1/0.35 */
+    {
+      double R1, R2, R3, S1, S2, S3, S4, s2, s4, s6;
+      R1 = rb[0] + s * rb[1]; s2 = s * s;
+      S1 = one + s * sb[1];  s4 = s2 * s2;
+      R2 = rb[2] + s * rb[3]; s6 = s4 * s2;
+      S2 = sb[2] + s * sb[3];
+      R3 = rb[4] + s * rb[5];
+      S3 = sb[4] + s * sb[5];
+      S4 = sb[6] + s * sb[7];
+      R = R1 + s2 * R2 + s4 * R3 + s6 * rb[6];
+      S = S1 + s2 * S2 + s4 * S3 + s6 * S4;
+    }
+  z = x;
+  SET_LOW_WORD (z, 0);
+  r = __ieee754_exp (-z * z - 0.5625) *
+      __ieee754_exp ((z - x) * (z + x) + R / S);
+  if (hx >= 0)
+    return one - r / x;
+  else
+    return r / x - one;
 }
 weak_alias (__erf, erf)
 #ifdef NO_LONG_DOUBLE
@@ -274,93 +293,115 @@ strong_alias (__erf, __erfl)
 weak_alias (__erf, erfl)
 #endif
 
-double __erfc(double x)
+double
+__erfc (double x)
 {
-	int32_t hx,ix;
-	double R,S,P,Q,s,y,z,r;
-	GET_HIGH_WORD(hx,x);
-	ix = hx&0x7fffffff;
-	if(ix>=0x7ff00000) {			/* erfc(nan)=nan */
-						/* erfc(+-inf)=0,2 */
-	    return (double)(((u_int32_t)hx>>31)<<1)+one/x;
-	}
+  int32_t hx, ix;
+  double R, S, P, Q, s, y, z, r;
+  GET_HIGH_WORD (hx, x);
+  ix = hx & 0x7fffffff;
+  if (ix >= 0x7ff00000)                         /* erfc(nan)=nan */
+    {                                           /* erfc(+-inf)=0,2 */
+      return (double) (((u_int32_t) hx >> 31) << 1) + one / x;
+    }
 
-	if(ix < 0x3feb0000) {		/* |x|<0.84375 */
-	    double r1,r2,s1,s2,s3,z2,z4;
-	    if(ix < 0x3c700000)  	/* |x|<2**-56 */
-		return one-x;
-	    z = x*x;
-	    r1 = pp[0]+z*pp[1]; z2=z*z;
-	    r2 = pp[2]+z*pp[3]; z4=z2*z2;
-	    s1 = one+z*qq[1];
-	    s2 = qq[2]+z*qq[3];
-	    s3 = qq[4]+z*qq[5];
-            r = r1 + z2*r2 + z4*pp[4];
-	    s  = s1 + z2*s2 + z4*s3;
-	    y = r/s;
-	    if(hx < 0x3fd00000) {  	/* x<1/4 */
-		return one-(x+x*y);
-	    } else {
-		r = x*y;
-		r += (x-half);
-	        return half - r ;
-	    }
+  if (ix < 0x3feb0000)                  /* |x|<0.84375 */
+    {
+      double r1, r2, s1, s2, s3, z2, z4;
+      if (ix < 0x3c700000)              /* |x|<2**-56 */
+	return one - x;
+      z = x * x;
+      r1 = pp[0] + z * pp[1]; z2 = z * z;
+      r2 = pp[2] + z * pp[3]; z4 = z2 * z2;
+      s1 = one + z * qq[1];
+      s2 = qq[2] + z * qq[3];
+      s3 = qq[4] + z * qq[5];
+      r = r1 + z2 * r2 + z4 * pp[4];
+      s = s1 + z2 * s2 + z4 * s3;
+      y = r / s;
+      if (hx < 0x3fd00000)              /* x<1/4 */
+	{
+	  return one - (x + x * y);
+	}
+      else
+	{
+	  r = x * y;
+	  r += (x - half);
+	  return half - r;
+	}
+    }
+  if (ix < 0x3ff40000)                  /* 0.84375 <= |x| < 1.25 */
+    {
+      double s2, s4, s6, P1, P2, P3, P4, Q1, Q2, Q3, Q4;
+      s = fabs (x) - one;
+      P1 = pa[0] + s * pa[1]; s2 = s * s;
+      Q1 = one + s * qa[1];   s4 = s2 * s2;
+      P2 = pa[2] + s * pa[3]; s6 = s4 * s2;
+      Q2 = qa[2] + s * qa[3];
+      P3 = pa[4] + s * pa[5];
+      Q3 = qa[4] + s * qa[5];
+      P4 = pa[6];
+      Q4 = qa[6];
+      P = P1 + s2 * P2 + s4 * P3 + s6 * P4;
+      Q = Q1 + s2 * Q2 + s4 * Q3 + s6 * Q4;
+      if (hx >= 0)
+	{
+	  z = one - erx; return z - P / Q;
+	}
+      else
+	{
+	  z = erx + P / Q; return one + z;
 	}
-	if(ix < 0x3ff40000) {		/* 0.84375 <= |x| < 1.25 */
-	    double s2,s4,s6,P1,P2,P3,P4,Q1,Q2,Q3,Q4;
-	    s = fabs(x)-one;
-	    P1 = pa[0]+s*pa[1]; s2=s*s;
-	    Q1 = one+s*qa[1];   s4=s2*s2;
-	    P2 = pa[2]+s*pa[3]; s6=s4*s2;
-	    Q2 = qa[2]+s*qa[3];
-	    P3 = pa[4]+s*pa[5];
-	    Q3 = qa[4]+s*qa[5];
-	    P4 = pa[6];
-	    Q4 = qa[6];
-	    P = P1 + s2*P2 + s4*P3 + s6*P4;
-	    Q = Q1 + s2*Q2 + s4*Q3 + s6*Q4;
-	    if(hx>=0) {
-	        z  = one-erx; return z - P/Q;
-	    } else {
-		z = erx+P/Q; return one+z;
-	    }
+    }
+  if (ix < 0x403c0000)                  /* |x|<28 */
+    {
+      x = fabs (x);
+      s = one / (x * x);
+      if (ix < 0x4006DB6D)              /* |x| < 1/.35 ~ 2.857143*/
+	{
+	  double R1, R2, R3, R4, S1, S2, S3, S4, s2, s4, s6, s8;
+	  R1 = ra[0] + s * ra[1]; s2 = s * s;
+	  S1 = one + s * sa[1];  s4 = s2 * s2;
+	  R2 = ra[2] + s * ra[3]; s6 = s4 * s2;
+	  S2 = sa[2] + s * sa[3]; s8 = s4 * s4;
+	  R3 = ra[4] + s * ra[5];
+	  S3 = sa[4] + s * sa[5];
+	  R4 = ra[6] + s * ra[7];
+	  S4 = sa[6] + s * sa[7];
+	  R = R1 + s2 * R2 + s4 * R3 + s6 * R4;
+	  S = S1 + s2 * S2 + s4 * S3 + s6 * S4 + s8 * sa[8];
 	}
-	if (ix < 0x403c0000) {		/* |x|<28 */
-	    x = fabs(x);
- 	    s = one/(x*x);
-	    if(ix< 0x4006DB6D) {	/* |x| < 1/.35 ~ 2.857143*/
-		double R1,R2,R3,R4,S1,S2,S3,S4,s2,s4,s6,s8;
-	    R1 = ra[0]+s*ra[1];s2 = s*s;
-	    S1 = one+s*sa[1];  s4 = s2*s2;
-	    R2 = ra[2]+s*ra[3];s6 = s4*s2;
-	    S2 = sa[2]+s*sa[3];s8 = s4*s4;
-	    R3 = ra[4]+s*ra[5];
-	    S3 = sa[4]+s*sa[5];
-	    R4 = ra[6]+s*ra[7];
-	    S4 = sa[6]+s*sa[7];
-	    R = R1 + s2*R2 + s4*R3 + s6*R4;
-	    S = S1 + s2*S2 + s4*S3 + s6*S4 + s8*sa[8];
-	    } else {			/* |x| >= 1/.35 ~ 2.857143 */
-		double R1,R2,R3,S1,S2,S3,S4,s2,s4,s6;
-		if(hx<0&&ix>=0x40180000) return two-tiny;/* x < -6 */
-		R1 = rb[0]+s*rb[1];s2 = s*s;
-		S1 = one+s*sb[1];  s4 = s2*s2;
-		R2 = rb[2]+s*rb[3];s6 = s4*s2;
-		S2 = sb[2]+s*sb[3];
-		R3 = rb[4]+s*rb[5];
-		S3 = sb[4]+s*sb[5];
-		S4 = sb[6]+s*sb[7];
-		R = R1 + s2*R2 + s4*R3 + s6*rb[6];
-		S = S1 + s2*S2 + s4*S3 + s6*S4;
-	    }
-	    z  = x;
-	    SET_LOW_WORD(z,0);
-	    r  =  __ieee754_exp(-z*z-0.5625)*
-			__ieee754_exp((z-x)*(z+x)+R/S);
-	    if(hx>0) return r/x; else return two-r/x;
-	} else {
-	    if(hx>0) return tiny*tiny; else return two-tiny;
+      else                              /* |x| >= 1/.35 ~ 2.857143 */
+	{
+	  double R1, R2, R3, S1, S2, S3, S4, s2, s4, s6;
+	  if (hx < 0 && ix >= 0x40180000)
+	    return two - tiny;                           /* x < -6 */
+	  R1 = rb[0] + s * rb[1]; s2 = s * s;
+	  S1 = one + s * sb[1];  s4 = s2 * s2;
+	  R2 = rb[2] + s * rb[3]; s6 = s4 * s2;
+	  S2 = sb[2] + s * sb[3];
+	  R3 = rb[4] + s * rb[5];
+	  S3 = sb[4] + s * sb[5];
+	  S4 = sb[6] + s * sb[7];
+	  R = R1 + s2 * R2 + s4 * R3 + s6 * rb[6];
+	  S = S1 + s2 * S2 + s4 * S3 + s6 * S4;
 	}
+      z = x;
+      SET_LOW_WORD (z, 0);
+      r = __ieee754_exp (-z * z - 0.5625) *
+	  __ieee754_exp ((z - x) * (z + x) + R / S);
+      if (hx > 0)
+	return r / x;
+      else
+	return two - r / x;
+    }
+  else
+    {
+      if (hx > 0)
+	return tiny * tiny;
+      else
+	return two - tiny;
+    }
 }
 weak_alias (__erfc, erfc)
 #ifdef NO_LONG_DOUBLE