Initial revision

[gnu-emacs] / src / floatfns.c

diff --git a/src/floatfns.c b/src/floatfns.c
index c99ba487e719f508d1d3827318da976b55a70e7e..07b8664c08cc6b25a29698e2b2820b96df0e8ff5 100644 (file)
--- a/src/floatfns.c
+++ b/src/floatfns.c
@@ -22,6 +22,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
 #include "config.h"
 #include "lisp.h"
+#include "syssignal.h"
 
 Lisp_Object Qarith_error;
 
@@ -76,6 +77,8 @@ extract_float (num)
     return XFLOAT (num)->data;
   return (double) XINT (num);
 }
+\f
+/* Trig functions.  */
 
 DEFUN ("acos", Facos, Sacos, 1, 1, 0,
   "Return the inverse cosine of ARG.")
@@ -87,56 +90,58 @@ DEFUN ("acos", Facos, Sacos, 1, 1, 0,
   return make_float (d);
 }
 
-DEFUN ("acosh", Facosh, Sacosh, 1, 1, 0,
-  "Return the inverse hyperbolic cosine of ARG.")
+DEFUN ("asin", Fasin, Sasin, 1, 1, 0,
+  "Return the inverse sine of ARG.")
   (num)
      register Lisp_Object num;
 {
   double d = extract_float (num);
-  IN_FLOAT (d = acosh (d), num);
+  IN_FLOAT (d = asin (d), num);
   return make_float (d);
 }
 
-DEFUN ("asin", Fasin, Sasin, 1, 1, 0,
-  "Return the inverse sine of ARG.")
+DEFUN ("atan", Fatan, Satan, 1, 1, 0,
+  "Return the inverse tangent of ARG.")
   (num)
      register Lisp_Object num;
 {
   double d = extract_float (num);
-  IN_FLOAT (d = asin (d), num);
+  IN_FLOAT (d = atan (d), num);
   return make_float (d);
 }
 
-DEFUN ("asinh", Fasinh, Sasinh, 1, 1, 0,
-  "Return the inverse hyperbolic sine of ARG.")
+DEFUN ("cos", Fcos, Scos, 1, 1, 0,
+  "Return the cosine of ARG.")
   (num)
      register Lisp_Object num;
 {
   double d = extract_float (num);
-  IN_FLOAT (d = asinh (d), num);
+  IN_FLOAT (d = cos (d), num);
   return make_float (d);
 }
 
-DEFUN ("atan", Fatan, Satan, 1, 1, 0,
-  "Return the inverse tangent of ARG.")
+DEFUN ("sin", Fsin, Ssin, 1, 1, 0,
+  "Return the sine of ARG.")
   (num)
      register Lisp_Object num;
 {
   double d = extract_float (num);
-  IN_FLOAT (d = atan (d), num);
+  IN_FLOAT (d = sin (d), num);
   return make_float (d);
 }
 
-DEFUN ("atanh", Fatanh, Satanh, 1, 1, 0,
-  "Return the inverse hyperbolic tangent of ARG.")
+DEFUN ("tan", Ftan, Stan, 1, 1, 0,
+  "Return the tangent of ARG.")
   (num)
      register Lisp_Object num;
 {
   double d = extract_float (num);
-  IN_FLOAT (d = atanh (d), num);
+  IN_FLOAT (d = tan (d), num);
   return make_float (d);
 }
 \f
+#if 0 /* Leave these out unless we find there's a reason for them.  */
+
 DEFUN ("bessel-j0", Fbessel_j0, Sbessel_j0, 1, 1, 0,
   "Return the bessel function j0 of ARG.")
   (num)
@@ -202,36 +207,10 @@ The first arg (the order) is truncated to an integer.")
   IN_FLOAT (f2 = yn (i1, f2), num1);
   return make_float (f2);
 }
-\f
-DEFUN ("cube-root", Fcube_root, Scube_root, 1, 1, 0,
-  "Return the cube root of ARG.")
-  (num)
-     register Lisp_Object num;
-{
-  double d = extract_float (num);
-  IN_FLOAT (d = cbrt (d), num);
-  return make_float (d);
-}
-
-DEFUN ("cos", Fcos, Scos, 1, 1, 0,
-  "Return the cosine of ARG.")
-  (num)
-     register Lisp_Object num;
-{
-  double d = extract_float (num);
-  IN_FLOAT (d = cos (d), num);
-  return make_float (d);
-}
 
-DEFUN ("cosh", Fcosh, Scosh, 1, 1, 0,
-  "Return the hyperbolic cosine of ARG.")
-  (num)
-     register Lisp_Object num;
-{
-  double d = extract_float (num);
-  IN_FLOAT (d = cosh (d), num);
-  return make_float (d);
-}
+#endif
+\f
+#if 0 /* Leave these out unless we see they are worth having.  */
 
 DEFUN ("erf", Ferf, Serf, 1, 1, 0,
   "Return the mathematical error function of ARG.")
@@ -253,26 +232,6 @@ DEFUN ("erfc", Ferfc, Serfc, 1, 1, 0,
   return make_float (d);
 }
 
-DEFUN ("exp", Fexp, Sexp, 1, 1, 0,
-  "Return the exponential base e of ARG.")
-  (num)
-     register Lisp_Object num;
-{
-  double d = extract_float (num);
-  IN_FLOAT (d = exp (d), num);
-  return make_float (d);
-}
-
-DEFUN ("expm1", Fexpm1, Sexpm1, 1, 1, 0,
-  "Return the exp (x)-1 of ARG.")
-  (num)
-     register Lisp_Object num;
-{
-  double d = extract_float (num);
-  IN_FLOAT (d = expm1 (d), num);
-  return make_float (d);
-}
-\f
 DEFUN ("log-gamma", Flog_gamma, Slog_gamma, 1, 1, 0,
   "Return the log gamma of ARG.")
   (num)
@@ -283,38 +242,40 @@ DEFUN ("log-gamma", Flog_gamma, Slog_gamma, 1, 1, 0,
   return make_float (d);
 }
 
-DEFUN ("log", Flog, Slog, 1, 1, 0,
-  "Return the natural logarithm of ARG.")
+DEFUN ("cbrt", Fcbrt, Scbrt, 1, 1, 0,
+  "Return the cube root of ARG.")
   (num)
      register Lisp_Object num;
 {
   double d = extract_float (num);
-  IN_FLOAT (d = log (d), num);
+  IN_FLOAT (d = cbrt (d), num);
   return make_float (d);
 }
 
-DEFUN ("log10", Flog10, Slog10, 1, 1, 0,
-  "Return the logarithm base 10 of ARG.")
+#endif
+\f
+DEFUN ("exp", Fexp, Sexp, 1, 1, 0,
+  "Return the exponential base e of ARG.")
   (num)
      register Lisp_Object num;
 {
   double d = extract_float (num);
-  IN_FLOAT (d = log10 (d), num);
+  IN_FLOAT (d = exp (d), num);
   return make_float (d);
 }
 
-DEFUN ("log1p", Flog1p, Slog1p, 1, 1, 0,
-  "Return the log (1+x) of ARG.")
+DEFUN ("expm1", Fexpm1, Sexpm1, 1, 1, 0,
+  "Return the exp (x)-1 of ARG.")
   (num)
      register Lisp_Object num;
 {
   double d = extract_float (num);
-  IN_FLOAT (d = log1p (d), num);
+  IN_FLOAT (d = expm1 (d), num);
   return make_float (d);
 }
 
 DEFUN ("expt", Fexpt, Sexpt, 2, 2, 0,
-  "Return the exponential x ** y.")
+  "Return the exponential X ** Y.")
   (num1, num2)
      register Lisp_Object num1, num2;
 {
@@ -348,24 +309,34 @@ DEFUN ("expt", Fexpt, Sexpt, 2, 2, 0,
   IN_FLOAT (f1 = pow (f1, f2), num1);
   return make_float (f1);
 }
-\f
-DEFUN ("sin", Fsin, Ssin, 1, 1, 0,
-  "Return the sine of ARG.")
+
+DEFUN ("log", Flog, Slog, 1, 1, 0,
+  "Return the natural logarithm of ARG.")
   (num)
      register Lisp_Object num;
 {
   double d = extract_float (num);
-  IN_FLOAT (d = sin (d), num);
+  IN_FLOAT (d = log (d), num);
   return make_float (d);
 }
 
-DEFUN ("sinh", Fsinh, Ssinh, 1, 1, 0,
-  "Return the hyperbolic sine of ARG.")
+DEFUN ("log10", Flog10, Slog10, 1, 1, 0,
+  "Return the logarithm base 10 of ARG.")
   (num)
      register Lisp_Object num;
 {
   double d = extract_float (num);
-  IN_FLOAT (d = sinh (d), num);
+  IN_FLOAT (d = log10 (d), num);
+  return make_float (d);
+}
+
+DEFUN ("log1p", Flog1p, Slog1p, 1, 1, 0,
+  "Return the log (1+x) of ARG.")
+  (num)
+     register Lisp_Object num;
+{
+  double d = extract_float (num);
+  IN_FLOAT (d = log1p (d), num);
   return make_float (d);
 }
 
@@ -378,14 +349,56 @@ DEFUN ("sqrt", Fsqrt, Ssqrt, 1, 1, 0,
   IN_FLOAT (d = sqrt (d), num);
   return make_float (d);
 }
+\f
+#if 0 /* Not clearly worth adding.  */
 
-DEFUN ("tan", Ftan, Stan, 1, 1, 0,
-  "Return the tangent of ARG.")
+DEFUN ("acosh", Facosh, Sacosh, 1, 1, 0,
+  "Return the inverse hyperbolic cosine of ARG.")
   (num)
      register Lisp_Object num;
 {
   double d = extract_float (num);
-  IN_FLOAT (d = tan (d), num);
+  IN_FLOAT (d = acosh (d), num);
+  return make_float (d);
+}
+
+DEFUN ("asinh", Fasinh, Sasinh, 1, 1, 0,
+  "Return the inverse hyperbolic sine of ARG.")
+  (num)
+     register Lisp_Object num;
+{
+  double d = extract_float (num);
+  IN_FLOAT (d = asinh (d), num);
+  return make_float (d);
+}
+
+DEFUN ("atanh", Fatanh, Satanh, 1, 1, 0,
+  "Return the inverse hyperbolic tangent of ARG.")
+  (num)
+     register Lisp_Object num;
+{
+  double d = extract_float (num);
+  IN_FLOAT (d = atanh (d), num);
+  return make_float (d);
+}
+
+DEFUN ("cosh", Fcosh, Scosh, 1, 1, 0,
+  "Return the hyperbolic cosine of ARG.")
+  (num)
+     register Lisp_Object num;
+{
+  double d = extract_float (num);
+  IN_FLOAT (d = cosh (d), num);
+  return make_float (d);
+}
+
+DEFUN ("sinh", Fsinh, Ssinh, 1, 1, 0,
+  "Return the hyperbolic sine of ARG.")
+  (num)
+     register Lisp_Object num;
+{
+  double d = extract_float (num);
+  IN_FLOAT (d = sinh (d), num);
   return make_float (d);
 }
 
@@ -398,6 +411,7 @@ DEFUN ("tanh", Ftanh, Stanh, 1, 1, 0,
   IN_FLOAT (d = tanh (d), num);
   return make_float (d);
 }
+#endif
 \f
 DEFUN ("abs", Fabs, Sabs, 1, 1, 0,
   "Return the absolute value of ARG.")
@@ -509,11 +523,7 @@ float_error (signo)
 #ifdef BSD4_1
   sigrelse (SIGILL);
 #else /* not BSD4_1 */
-  {
-    int dummy;
-
-    EMACS_SIGSETMASK (0, dummy);
-  }
+  sigsetmask (SIGEMPTYMASK);
 #endif /* not BSD4_1 */
 #else
   /* Must reestablish handler each time it is called.  */
@@ -534,34 +544,36 @@ init_floatfns ()
 syms_of_floatfns ()
 {
   defsubr (&Sacos);
-  defsubr (&Sacosh);
   defsubr (&Sasin);
-  defsubr (&Sasinh);
   defsubr (&Satan);
+  defsubr (&Scos);
+  defsubr (&Ssin);
+  defsubr (&Stan);
+#if 0
+  defsubr (&Sacosh);
+  defsubr (&Sasinh);
   defsubr (&Satanh);
+  defsubr (&Scosh);
+  defsubr (&Ssinh);
+  defsubr (&Stanh);
   defsubr (&Sbessel_y0);
   defsubr (&Sbessel_y1);
   defsubr (&Sbessel_yn);
   defsubr (&Sbessel_j0);
   defsubr (&Sbessel_j1);
   defsubr (&Sbessel_jn);
-  defsubr (&Scube_root);
-  defsubr (&Scos);
-  defsubr (&Scosh);
   defsubr (&Serf);
   defsubr (&Serfc);
+  defsubr (&Slog_gamma);
+  defsubr (&Scbrt);
+#endif
   defsubr (&Sexp);
   defsubr (&Sexpm1);
-  defsubr (&Slog_gamma);
+  defsubr (&Sexpt);
   defsubr (&Slog);
   defsubr (&Slog10);
   defsubr (&Slog1p);
-  defsubr (&Sexpt);
-  defsubr (&Ssin);
-  defsubr (&Ssinh);
   defsubr (&Ssqrt);
-  defsubr (&Stan);
-  defsubr (&Stanh);
 
   defsubr (&Sabs);
   defsubr (&Sfloat);