Finalize 1.7.6 release.

[ginac.git] / check / exam_misc.cpp

diff --git a/check/exam_misc.cpp b/check/exam_misc.cpp
index 9dbfd6bc41d71850566681b337c004d3fea647cc..13152f2707ed183e281c2758b4e07f62b7385d5d 100644 (file)
--- a/check/exam_misc.cpp
+++ b/check/exam_misc.cpp
@@ -3,7 +3,7 @@
  */
 
 /*
- *  GiNaC Copyright (C) 1999-2010 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2019 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
@@ -96,7 +96,7 @@ static unsigned exam_sqrfree()
        ex e1, e2;
        
        e1 = (1+x)*pow((2+x),2)*pow((3+x),3)*pow((4+x),4);
-       e2 = sqrfree(expand(e1),lst(x));
+       e2 = sqrfree(expand(e1),lst{x});
        if (e1 != e2) {
                clog << "sqrfree(expand(" << e1 << ")) erroneously returned "
                     << e2 << endl;
@@ -110,19 +110,19 @@ static unsigned exam_sqrfree()
                     << e2 << endl;
                ++result;
        }
-       e2 = sqrfree(expand(e1),lst(x));
+       e2 = sqrfree(expand(e1),lst{x});
        if (e1 != e2) {
                clog << "sqrfree(expand(" << e1 << "),[x]) erroneously returned "
                     << e2 << endl;
                ++result;
        }
-       e2 = sqrfree(expand(e1),lst(y));
+       e2 = sqrfree(expand(e1),lst{y});
        if (e1 != e2) {
                clog << "sqrfree(expand(" << e1 << "),[y]) erroneously returned "
                     << e2 << endl;
                ++result;
        }
-       e2 = sqrfree(expand(e1),lst(x,y));
+       e2 = sqrfree(expand(e1),lst{x,y});
        if (e1 != e2) {
                clog << "sqrfree(expand(" << e1 << "),[x,y]) erroneously returned "
                     << e2 << endl;
@@ -164,7 +164,7 @@ static unsigned exam_operator_semantics()
                ++result;
        }
        
-       // Prefix/postfix increment/decrement behaviour:
+       // Prefix/postfix increment/decrement behavior:
        e1 = 7; e2 = 4;
        i1 = 7; i2 = 4;
        e1 = (--e2 = 2)++;
@@ -219,6 +219,15 @@ static unsigned exam_subs()
                ++result;
        }
 
+       // And this used to fail in GiNaC 1.5.8 because it first substituted
+       // exp(x) -> exp(log(x)) -> x, and then substituted again x -> log(x)
+       e1 = exp(x);
+       e2 = e1.subs(x == log(x));
+       if (!e2.is_equal(x)) {
+               clog << "exp(x).subs(x==log(x)) erroneously returned " << e2 << " instead of x" << endl;
+               ++result;
+       }
+
        e1 = sin(1+sin(x));
        e2 = e1.subs(sin(wild()) == cos(wild()));
        if (!e2.is_equal(cos(1+cos(x)))) {