implemented operator-> for the iterators

[ginac.git] / ginac / inifcns_trans.cpp

diff --git a/ginac/inifcns_trans.cpp b/ginac/inifcns_trans.cpp
index cbf370dbb16542f1be19e16566a547a998e90f01..239b1ea2ea1d8a3130130a9e32ee77d28458cf3b 100644 (file)
--- a/ginac/inifcns_trans.cpp
+++ b/ginac/inifcns_trans.cpp
@@ -4,7 +4,7 @@
  *  functions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -29,6 +29,7 @@
 #include "constant.h"
 #include "numeric.h"
 #include "power.h"
+#include "operators.h"
 #include "relational.h"
 #include "symbol.h"
 #include "pseries.h"
@@ -146,12 +147,12 @@ static ex log_series(const ex &arg,
                      int order,
                      unsigned options)
 {
-       GINAC_ASSERT(is_exactly_a<symbol>(rel.lhs()));
+       GINAC_ASSERT(is_a<symbol>(rel.lhs()));
        ex arg_pt;
        bool must_expand_arg = false;
        // maybe substitution of rel into arg fails because of a pole
        try {
-               arg_pt = arg.subs(rel);
+               arg_pt = arg.subs(rel, subs_options::no_pattern);
        } catch (pole_error) {
                must_expand_arg = true;
        }
@@ -205,7 +206,7 @@ static ex log_series(const ex &arg,
                const symbol &s = ex_to<symbol>(rel.lhs());
                const ex &point = rel.rhs();
                const symbol foo;
-               const ex replarg = series(log(arg), s==foo, order).subs(foo==point);
+               const ex replarg = series(log(arg), s==foo, order).subs(foo==point, subs_options::no_pattern);
                epvector seq;
                seq.push_back(expair(-I*csgn(arg*I)*Pi, _ex0));
                seq.push_back(expair(Order(_ex1), order));
@@ -460,11 +461,11 @@ static ex tan_series(const ex &x,
                      int order,
                      unsigned options)
 {
-       GINAC_ASSERT(is_exactly_a<symbol>(rel.lhs()));
+       GINAC_ASSERT(is_a<symbol>(rel.lhs()));
        // method:
        // Taylor series where there is no pole falls back to tan_deriv.
        // On a pole simply expand sin(x)/cos(x).
-       const ex x_pt = x.subs(rel);
+       const ex x_pt = x.subs(rel, subs_options::no_pattern);
        if (!(2*x_pt/Pi).info(info_flags::odd))
                throw do_taylor();  // caught by function::series()
        // if we got here we have to care for a simple pole
@@ -626,7 +627,7 @@ static ex atan_series(const ex &arg,
                       int order,
                       unsigned options)
 {
-       GINAC_ASSERT(is_exactly_a<symbol>(rel.lhs()));
+       GINAC_ASSERT(is_a<symbol>(rel.lhs()));
        // method:
        // Taylor series where there is no pole or cut falls back to atan_deriv.
        // There are two branch cuts, one runnig from I up the imaginary axis and
@@ -635,7 +636,7 @@ static ex atan_series(const ex &arg,
        // On the branch cuts and the poles series expand
        //     (log(1+I*x)-log(1-I*x))/(2*I)
        // instead.
-       const ex arg_pt = arg.subs(rel);
+       const ex arg_pt = arg.subs(rel, subs_options::no_pattern);
        if (!(I*arg_pt).info(info_flags::real))
                throw do_taylor();     // Re(x) != 0
        if ((I*arg_pt).info(info_flags::real) && abs(I*arg_pt)<_ex1)
@@ -650,7 +651,7 @@ static ex atan_series(const ex &arg,
                const symbol &s = ex_to<symbol>(rel.lhs());
                const ex &point = rel.rhs();
                const symbol foo;
-               const ex replarg = series(atan(arg), s==foo, order).subs(foo==point);
+               const ex replarg = series(atan(arg), s==foo, order).subs(foo==point, subs_options::no_pattern);
                ex Order0correction = replarg.op(0)+csgn(arg)*Pi*_ex_1_2;
                if ((I*arg_pt)<_ex0)
                        Order0correction += log((I*arg_pt+_ex_1)/(I*arg_pt+_ex1))*I*_ex_1_2;
@@ -870,11 +871,11 @@ static ex tanh_series(const ex &x,
                       int order,
                       unsigned options)
 {
-       GINAC_ASSERT(is_exactly_a<symbol>(rel.lhs()));
+       GINAC_ASSERT(is_a<symbol>(rel.lhs()));
        // method:
        // Taylor series where there is no pole falls back to tanh_deriv.
        // On a pole simply expand sinh(x)/cosh(x).
-       const ex x_pt = x.subs(rel);
+       const ex x_pt = x.subs(rel, subs_options::no_pattern);
        if (!(2*I*x_pt/Pi).info(info_flags::odd))
                throw do_taylor();  // caught by function::series()
        // if we got here we have to care for a simple pole
@@ -1011,7 +1012,7 @@ static ex atanh_series(const ex &arg,
                        int order,
                        unsigned options)
 {
-       GINAC_ASSERT(is_exactly_a<symbol>(rel.lhs()));
+       GINAC_ASSERT(is_a<symbol>(rel.lhs()));
        // method:
        // Taylor series where there is no pole or cut falls back to atanh_deriv.
        // There are two branch cuts, one runnig from 1 up the real axis and one
@@ -1019,7 +1020,7 @@ static ex atanh_series(const ex &arg,
        // On the branch cuts and the poles series expand
        //     (log(1+x)-log(1-x))/2
        // instead.
-       const ex arg_pt = arg.subs(rel);
+       const ex arg_pt = arg.subs(rel, subs_options::no_pattern);
        if (!(arg_pt).info(info_flags::real))
                throw do_taylor();     // Im(x) != 0
        if ((arg_pt).info(info_flags::real) && abs(arg_pt)<_ex1)
@@ -1035,7 +1036,7 @@ static ex atanh_series(const ex &arg,
                const symbol &s = ex_to<symbol>(rel.lhs());
                const ex &point = rel.rhs();
                const symbol foo;
-               const ex replarg = series(atanh(arg), s==foo, order).subs(foo==point);
+               const ex replarg = series(atanh(arg), s==foo, order).subs(foo==point, subs_options::no_pattern);
                ex Order0correction = replarg.op(0)+csgn(I*arg)*Pi*I*_ex1_2;
                if (arg_pt<_ex0)
                        Order0correction += log((arg_pt+_ex_1)/(arg_pt+_ex1))*_ex1_2;