Added integral class.

[ginac.git] / ginac / basic.cpp

diff --git a/ginac/basic.cpp b/ginac/basic.cpp
index 3a2768418c5705aa0e7cb8078e88fc70834c7254..c37ed3e3ded529a816ab82189da3f6fd42deeafa 100644 (file)
--- a/ginac/basic.cpp
+++ b/ginac/basic.cpp
@@ -207,7 +207,7 @@ void basic::do_print_python_repr(const print_python_repr & c, unsigned level) co
  *  @see basic::dbgprinttree */
 void basic::dbgprint() const
 {
-       this->print(std::cerr);
+       this->print(print_dflt(std::cerr));
        std::cerr << std::endl;
 }
 
@@ -482,6 +482,20 @@ ex basic::evalm() const
                return map(map_evalm);
 }
 
+/** Function object to be applied by basic::eval_integ(). */
+struct eval_integ_map_function : public map_function {
+       ex operator()(const ex & e) { return eval_integ(e); }
+} map_eval_integ;
+
+/** Evaluate integrals, if result is known. */
+ex basic::eval_integ() const
+{
+       if (nops() == 0)
+               return *this;
+       else
+               return map(map_eval_integ);
+}
+
 /** Perform automatic symbolic evaluations on indexed expression that
  *  contains this object as the base expression. */
 ex basic::eval_indexed(const basic & i) const