[BUGFIX] Fix crash in parser.

[ginac.git] / check / exam_archive.cpp

diff --git a/check/exam_archive.cpp b/check/exam_archive.cpp
index 198df414c032a258d6e0b6ad3cd674ca8b5499f3..fcc3b7ad8486eacb3d7a10553e66e131ccf9b0f5 100644 (file)
--- a/check/exam_archive.cpp
+++ b/check/exam_archive.cpp
@@ -3,7 +3,7 @@
  *  Here we test GiNaC's archiving system. */
 
 /*
- *  GiNaC Copyright (C) 1999-2019 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2024 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
@@ -27,12 +27,13 @@ using namespace GiNaC;
 #include <iostream>
 using namespace std;
 
+#include <cln/cln.h>
+
+
 unsigned exam_archive()
 {
        unsigned result = 0;
        
-       cout << "examining archiving system" << flush;
-
        symbol x("x"), y("y"), mu("mu"), dim("dim", "\\Delta");
        ex e, f;
 
@@ -76,7 +77,49 @@ unsigned exam_archive()
        return result;
 }
 
+/** numeric::archive used to fail if the real part of a complex number
+ *  is a rational number and the imaginary part is a floating point one. */
+unsigned numeric_complex_bug()
+{
+       using namespace cln;
+       struct archive_unarchive_check
+       {
+               unsigned operator()(const cl_N& n) const
+               {
+                       ex e = numeric(n);
+                       archive ar;
+                       ar.archive_ex(e, "test");
+                       ex check = ar.unarchive_ex(lst{}, "test");
+                       if (!check.is_equal(e)) {
+                               clog << __FILE__ << ':' << __LINE__ << ": expected: " << e << ", got " << check << endl;
+                               return 1;
+                       }
+                       return 0;
+               }
+       } checker;
+       unsigned result = 0;
+       const cl_I one(1);
+       const cl_R three_fp = cl_float(3.0);
+       std::vector<cl_N> numbers = {
+               complex(one, one),
+               complex(one, three_fp),
+               complex(three_fp, one),
+               complex(three_fp, three_fp)
+       };
+       for (auto & n : numbers) {
+               result += checker(n);
+       }
+       return result;
+}
+
 int main(int argc, char** argv)
 {
-       return exam_archive();
+       unsigned result = 0;
+
+       cout << "examining archiving system" << flush;
+
+       result += exam_archive();  cout << '.' << flush;
+       result += numeric_complex_bug();  cout << '.' << flush;
+
+       return result;
 }