revert back to netlib versions as of f2c-19990501

From-SVN: r26739

libf2c/ChangeLog

+Mon May  3 10:52:53 1999  Craig Burley  <craig@jcb-sc.com>
+
+	* libF77/c_cos.c, libF77/c_div.c, libF77/c_exp.c, libF77/c_log.c,
+	libF77/c_sin.c, libF77/c_sqrt.c, libF77/d_cnjg.c, libF77/pow_zi.c,
+	libF77/r_cnjg.c, libF77/z_cos.c, libF77/z_div.c, libF77/z_exp.c,
+	libF77/z_log.c, libF77/z_sin.c, libF77/z_sqrt.c: Revert back to
+	netlib versions as of f2c-19990501.
+
 Sun May  2 01:38:50 1999  Craig Burley  <craig@jcb-sc.com>
 
 	* libU77/u77-test.f (main): Declare FTELL as intrinsic.

libf2c/libF77/c_cos.c

@@ -3,19 +3,15 @@
 #ifdef KR_headers
 extern double sin(), cos(), sinh(), cosh();
 
-VOID c_cos(resx, z) complex *resx, *z;
+VOID c_cos(r, z) complex *r, *z;
 #else
 #undef abs
-#include <math.h>
+#include "math.h"
 
-void c_cos(complex *resx, complex *z)
+void c_cos(complex *r, complex *z)
 #endif
 {
-complex res;
-
-res.r = cos(z->r) * cosh(z->i);
-res.i = - sin(z->r) * sinh(z->i);
-
-resx->r = res.r;
-resx->i = res.i;
-}
+	double zr = z->r;
+	r->r =   cos(zr) * cosh(z->i);
+	r->i = - sin(zr) * sinh(z->i);
+	}

libf2c/libF77/c_div.c

@@ -2,39 +2,36 @@
 
 #ifdef KR_headers
 extern VOID sig_die();
-VOID c_div(resx, a, b)
-complex *a, *b, *resx;
+VOID c_div(c, a, b)
+complex *a, *b, *c;
 #else
 extern void sig_die(char*,int);
-void c_div(complex *resx, complex *a, complex *b)
+void c_div(complex *c, complex *a, complex *b)
 #endif
 {
-double ratio, den;
-double abr, abi;
-complex res;
+	double ratio, den;
+	double abr, abi, cr;
 
-if( (abr = b->r) < 0.)
-	abr = - abr;
-if( (abi = b->i) < 0.)
-	abi = - abi;
-if( abr <= abi )
-	{
-	if(abi == 0)
-		sig_die("complex division by zero", 1);
-	ratio = (double)b->r / b->i ;
-	den = b->i * (1 + ratio*ratio);
-	res.r = (a->r*ratio + a->i) / den;
-	res.i = (a->i*ratio - a->r) / den;
-	}
+	if( (abr = b->r) < 0.)
+		abr = - abr;
+	if( (abi = b->i) < 0.)
+		abi = - abi;
+	if( abr <= abi )
+		{
+		if(abi == 0)
+			sig_die("complex division by zero", 1);
+		ratio = (double)b->r / b->i ;
+		den = b->i * (1 + ratio*ratio);
+		cr = (a->r*ratio + a->i) / den;
+		c->i = (a->i*ratio - a->r) / den;
+		}
 
-else
-	{
-	ratio = (double)b->i / b->r ;
-	den = b->r * (1 + ratio*ratio);
-	res.r = (a->r + a->i*ratio) / den;
-	res.i = (a->i - a->r*ratio) / den;
+	else
+		{
+		ratio = (double)b->i / b->r ;
+		den = b->r * (1 + ratio*ratio);
+		cr = (a->r + a->i*ratio) / den;
+		c->i = (a->i - a->r*ratio) / den;
+		}
+	c->r = cr;
 	}
-
-resx->r = res.r;
-resx->i = res.i;
-}

libf2c/libF77/c_exp.c

@@ -3,21 +3,17 @@
 #ifdef KR_headers
 extern double exp(), cos(), sin();
 
- VOID c_exp(resx, z) complex *resx, *z;
+ VOID c_exp(r, z) complex *r, *z;
 #else
 #undef abs
-#include <math.h>
+#include "math.h"
 
-void c_exp(complex *resx, complex *z)
+void c_exp(complex *r, complex *z)
 #endif
 {
 double expx;
-complex res;
 
 expx = exp(z->r);
-res.r = expx * cos(z->i);
-res.i = expx * sin(z->i);
-
-resx->r = res.r;
-resx->i = res.i;
+r->r = expx * cos(z->i);
+r->i = expx * sin(z->i);
 }

libf2c/libF77/c_log.c

@@ -2,20 +2,16 @@
 
 #ifdef KR_headers
 extern double log(), f__cabs(), atan2();
-VOID c_log(resx, z) complex *resx, *z;
+VOID c_log(r, z) complex *r, *z;
 #else
 #undef abs
-#include <math.h>
+#include "math.h"
 extern double f__cabs(double, double);
 
-void c_log(complex *resx, complex *z)
+void c_log(complex *r, complex *z)
 #endif
 {
-complex res;
-
-res.i = atan2(z->i, z->r);
-res.r = log( f__cabs(z->r, z->i) );
-
-resx->r = res.r;
-resx->i = res.i;
-}
+	double zi;
+	r->i = atan2(zi = z->i, z->r);
+	r->r = log( f__cabs(z->r, zi) );
+	}

libf2c/libF77/c_sin.c

@@ -3,19 +3,15 @@
 #ifdef KR_headers
 extern double sin(), cos(), sinh(), cosh();
 
-VOID c_sin(resx, z) complex *resx, *z;
+VOID c_sin(r, z) complex *r, *z;
 #else
 #undef abs
-#include <math.h>
+#include "math.h"
 
-void c_sin(complex *resx, complex *z)
+void c_sin(complex *r, complex *z)
 #endif
 {
-complex res;
-
-res.r = sin(z->r) * cosh(z->i);
-res.i = cos(z->r) * sinh(z->i);
-
-resx->r = res.r;
-resx->i = res.i;
-}
+	double zr = z->r;
+	r->r = sin(zr) * cosh(z->i);
+	r->i = cos(zr) * sinh(z->i);
+	}

libf2c/libF77/c_sqrt.c

@@ -3,36 +3,33 @@
 #ifdef KR_headers
 extern double sqrt(), f__cabs();
 
-VOID c_sqrt(resx, z) complex *resx, *z;
+VOID c_sqrt(r, z) complex *r, *z;
 #else
 #undef abs
-#include <math.h>
+#include "math.h"
 extern double f__cabs(double, double);
 
-void c_sqrt(complex *resx, complex *z)
+void c_sqrt(complex *r, complex *z)
 #endif
 {
-double mag, t;
-complex res;
+	double mag, t;
+	double zi = z->i, zr = z->r;
 
-if( (mag = f__cabs(z->r, z->i)) == 0.)
-	res.r = res.i = 0.;
-else if(z->r > 0)
-	{
-	res.r = t = sqrt(0.5 * (mag + z->r) );
-	t = z->i / t;
-	res.i = 0.5 * t;
+	if( (mag = f__cabs(zr, zi)) == 0.)
+		r->r = r->i = 0.;
+	else if(zr > 0)
+		{
+		r->r = t = sqrt(0.5 * (mag + zr) );
+		t = zi / t;
+		r->i = 0.5 * t;
+		}
+	else
+		{
+		t = sqrt(0.5 * (mag - zr) );
+		if(zi < 0)
+			t = -t;
+		r->i = t;
+		t = zi / t;
+		r->r = 0.5 * t;
+		}
 	}
-else
-	{
-	t = sqrt(0.5 * (mag - z->r) );
-	if(z->i < 0)
-		t = -t;
-	res.i = t;
-	t = z->i / t;
-	res.r = 0.5 * t;
-	}
-
-resx->r = res.r;
-resx->i = res.i;
-}

libf2c/libF77/d_cnjg.c

@@ -2,16 +2,11 @@
 
  VOID
 #ifdef KR_headers
-d_cnjg(resx, z) doublecomplex *resx, *z;
+d_cnjg(r, z) doublecomplex *r, *z;
 #else
-d_cnjg(doublecomplex *resx, doublecomplex *z)
+d_cnjg(doublecomplex *r, doublecomplex *z)
 #endif
 {
-doublecomplex res;
-
-res.r = z->r;
-res.i = - z->i;
-
-resx->r = res.r;
-resx->i = res.i;
+r->r = z->r;
+r->i = - z->i;
 }

libf2c/libF77/pow_zi.c

 #include "f2c.h"
 
 #ifdef KR_headers
-VOID pow_zi(resx, a, b) 	/* p = a**b  */
- doublecomplex *resx, *a; integer *b;
+VOID pow_zi(p, a, b) 	/* p = a**b  */
+ doublecomplex *p, *a; integer *b;
 #else
 extern void z_div(doublecomplex*, doublecomplex*, doublecomplex*);
-void pow_zi(doublecomplex *resx, doublecomplex *a, integer *b) 	/* p = a**b  */
+void pow_zi(doublecomplex *p, doublecomplex *a, integer *b) 	/* p = a**b  */
 #endif
 {
-integer n;
-unsigned long u;
-double t;
-doublecomplex x;
-doublecomplex res;
-static doublecomplex one = {1.0, 0.0};
+	integer n;
+	unsigned long u;
+	double t;
+	doublecomplex q, x;
+	static doublecomplex one = {1.0, 0.0};
 
-n = *b;
+	n = *b;
+	q.r = 1;
+	q.i = 0;
 
-if(n == 0)
-	{
-	resx->r = 1;
-	resx->i = 0;
-	return;
-	}
-
-res.r = 1;
-res.i = 0;
-
-if(n < 0)
-	{
-	n = -n;
-	z_div(&x, &one, a);
-	}
-else
-	{
-	x.r = a->r;
-	x.i = a->i;
-	}
-
-for(u = n; ; )
-	{
-	if(u & 01)
+	if(n == 0)
+		goto done;
+	if(n < 0)
 		{
-		t = res.r * x.r - res.i * x.i;
-		res.i = res.r * x.i + res.i * x.r;
-		res.r = t;
+		n = -n;
+		z_div(&x, &one, a);
 		}
-	if(u >>= 1)
+	else
 		{
-		t = x.r * x.r - x.i * x.i;
-		x.i = 2 * x.r * x.i;
-		x.r = t;
+		x.r = a->r;
+		x.i = a->i;
 		}
-	else
-		break;
-	}
 
-resx->r = res.r;
-resx->i = res.i;
-}
+	for(u = n; ; )
+		{
+		if(u & 01)
+			{
+			t = q.r * x.r - q.i * x.i;
+			q.i = q.r * x.i + q.i * x.r;
+			q.r = t;
+			}
+		if(u >>= 1)
+			{
+			t = x.r * x.r - x.i * x.i;
+			x.i = 2 * x.r * x.i;
+			x.r = t;
+			}
+		else
+			break;
+		}
+ done:
+	p->i = q.i;
+	p->r = q.r;
+	}

libf2c/libF77/r_cnjg.c

 #include "f2c.h"
 
 #ifdef KR_headers
-VOID r_cnjg(resx, z) complex *resx, *z;
+VOID r_cnjg(r, z) complex *r, *z;
 #else
-VOID r_cnjg(complex *resx, complex *z)
+VOID r_cnjg(complex *r, complex *z)
 #endif
 {
-complex res;
-
-res.r = z->r;
-res.i = - z->i;
-
-resx->r = res.r;
-resx->i = res.i;
+r->r = z->r;
+r->i = - z->i;
 }

libf2c/libF77/z_cos.c

@@ -2,18 +2,14 @@
 
 #ifdef KR_headers
 double sin(), cos(), sinh(), cosh();
-VOID z_cos(resx, z) doublecomplex *resx, *z;
+VOID z_cos(r, z) doublecomplex *r, *z;
 #else
 #undef abs
-#include <math.h>
-void z_cos(doublecomplex *resx, doublecomplex *z)
+#include "math.h"
+void z_cos(doublecomplex *r, doublecomplex *z)
 #endif
 {
-doublecomplex res;
-
-res.r = cos(z->r) * cosh(z->i);
-res.i = - sin(z->r) * sinh(z->i);
-
-resx->r = res.r;
-resx->i = res.i;
-}
+	double zr = z->r;
+	r->r =   cos(zr) * cosh(z->i);
+	r->i = - sin(zr) * sinh(z->i);
+	}

libf2c/libF77/z_div.c

@@ -2,38 +2,35 @@
 
 #ifdef KR_headers
 extern VOID sig_die();
-VOID z_div(resx, a, b) doublecomplex *a, *b, *resx;
+VOID z_div(c, a, b) doublecomplex *a, *b, *c;
 #else
 extern void sig_die(char*, int);
-void z_div(doublecomplex *resx, doublecomplex *a, doublecomplex *b)
+void z_div(doublecomplex *c, doublecomplex *a, doublecomplex *b)
 #endif
 {
-double ratio, den;
-double abr, abi;
-doublecomplex res;
+	double ratio, den;
+	double abr, abi, cr;
 
-if( (abr = b->r) < 0.)
-	abr = - abr;
-if( (abi = b->i) < 0.)
-	abi = - abi;
-if( abr <= abi )
-	{
-	if(abi == 0)
-		sig_die("complex division by zero", 1);
-	ratio = b->r / b->i ;
-	den = b->i * (1 + ratio*ratio);
-	res.r = (a->r*ratio + a->i) / den;
-	res.i = (a->i*ratio - a->r) / den;
-	}
+	if( (abr = b->r) < 0.)
+		abr = - abr;
+	if( (abi = b->i) < 0.)
+		abi = - abi;
+	if( abr <= abi )
+		{
+		if(abi == 0)
+			sig_die("complex division by zero", 1);
+		ratio = b->r / b->i ;
+		den = b->i * (1 + ratio*ratio);
+		cr = (a->r*ratio + a->i) / den;
+		c->i = (a->i*ratio - a->r) / den;
+		}
 
-else
-	{
-	ratio = b->i / b->r ;
-	den = b->r * (1 + ratio*ratio);
-	res.r = (a->r + a->i*ratio) / den;
-	res.i = (a->i - a->r*ratio) / den;
+	else
+		{
+		ratio = b->i / b->r ;
+		den = b->r * (1 + ratio*ratio);
+		cr = (a->r + a->i*ratio) / den;
+		c->i = (a->i - a->r*ratio) / den;
+		}
+	c->r = cr;
 	}
-
-resx->r = res.r;
-resx->i = res.i;
-}

libf2c/libF77/z_exp.c

@@ -2,20 +2,16 @@
 
 #ifdef KR_headers
 double exp(), cos(), sin();
-VOID z_exp(resx, z) doublecomplex *resx, *z;
+VOID z_exp(r, z) doublecomplex *r, *z;
 #else
 #undef abs
-#include <math.h>
-void z_exp(doublecomplex *resx, doublecomplex *z)
+#include "math.h"
+void z_exp(doublecomplex *r, doublecomplex *z)
 #endif
 {
 double expx;
-doublecomplex res;
 
 expx = exp(z->r);
-res.r = expx * cos(z->i);
-res.i = expx * sin(z->i);
-
-resx->r = res.r;
-resx->i = res.i;
+r->r = expx * cos(z->i);
+r->i = expx * sin(z->i);
 }

libf2c/libF77/z_log.c

@@ -2,19 +2,15 @@
 
 #ifdef KR_headers
 double log(), f__cabs(), atan2();
-VOID z_log(resx, z) doublecomplex *resx, *z;
+VOID z_log(r, z) doublecomplex *r, *z;
 #else
 #undef abs
-#include <math.h>
+#include "math.h"
 extern double f__cabs(double, double);
-void z_log(doublecomplex *resx, doublecomplex *z)
+void z_log(doublecomplex *r, doublecomplex *z)
 #endif
 {
-doublecomplex res;
-
-res.i = atan2(z->i, z->r);
-res.r = log( f__cabs( z->r, z->i ) );
-
-resx->r = res.r;
-resx->i = res.i;
-}
+	double zi = z->i;
+	r->i = atan2(zi, z->r);
+	r->r = log( f__cabs( z->r, zi ) );
+	}

libf2c/libF77/z_sin.c

@@ -2,18 +2,14 @@
 
 #ifdef KR_headers
 double sin(), cos(), sinh(), cosh();
-VOID z_sin(resx, z) doublecomplex *resx, *z;
+VOID z_sin(r, z) doublecomplex *r, *z;
 #else
 #undef abs
-#include <math.h>
-void z_sin(doublecomplex *resx, doublecomplex *z)
+#include "math.h"
+void z_sin(doublecomplex *r, doublecomplex *z)
 #endif
 {
-doublecomplex res;
-
-res.r = sin(z->r) * cosh(z->i);
-res.i = cos(z->r) * sinh(z->i);
-
-resx->r = res.r;
-resx->i = res.i;
-}
+	double zr = z->r;
+	r->r = sin(zr) * cosh(z->i);
+	r->i = cos(zr) * sinh(z->i);
+	}

libf2c/libF77/z_sqrt.c

@@ -2,32 +2,28 @@
 
 #ifdef KR_headers
 double sqrt(), f__cabs();
-VOID z_sqrt(resx, z) doublecomplex *resx, *z;
+VOID z_sqrt(r, z) doublecomplex *r, *z;
 #else
 #undef abs
-#include <math.h>
+#include "math.h"
 extern double f__cabs(double, double);
-void z_sqrt(doublecomplex *resx, doublecomplex *z)
+void z_sqrt(doublecomplex *r, doublecomplex *z)
 #endif
 {
-double mag;
-doublecomplex res;
+	double mag, zi = z->i, zr = z->r;
 
-if( (mag = f__cabs(z->r, z->i)) == 0.)
-	res.r = res.i = 0.;
-else if(z->r > 0)
-	{
-	res.r = sqrt(0.5 * (mag + z->r) );
-	res.i = z->i / res.r / 2;
+	if( (mag = f__cabs(zr, zi)) == 0.)
+		r->r = r->i = 0.;
+	else if(zr > 0)
+		{
+		r->r = sqrt(0.5 * (mag + zr) );
+		r->i = zi / r->r / 2;
+		}
+	else
+		{
+		r->i = sqrt(0.5 * (mag - zr) );
+		if(zi < 0)
+			r->i = - r->i;
+		r->r = zi / r->i / 2;
+		}
 	}
-else
-	{
-	res.i = sqrt(0.5 * (mag - z->r) );
-	if(z->i < 0)
-		res.i = - res.i;
-	res.r = z->i / res.i / 2;
-	}
-
-resx->r = res.r;
-resx->i = res.i;
-}