Allow user to disable GiNaC::compile_ex (e.g. for security reasons).

[ginac.git] / ginac / numeric.h

diff --git a/ginac/numeric.h b/ginac/numeric.h
index 09603f660d33f1542995733b05dbdb96de4fc973..bf5c70134cedcfafcad15a06d3c8f003a1777bca 100644 (file)
--- a/ginac/numeric.h
+++ b/ginac/numeric.h
@@ -3,7 +3,7 @@
  *  Makes the interface to the underlying bignum package available. */
 
 /*
- *  GiNaC Copyright (C) 1999-2006 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2008 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
@@ -184,7 +184,7 @@ public:
        const numeric denom() const;
        int int_length() const;
        // converting routines for interfacing with CLN:
-       numeric(const cln::cl_N &z);
+       explicit numeric(const cln::cl_N &z);
 
 protected:
        void print_numeric(const print_context & c, const char *par_open, const char *par_close, const char *imag_sym, const char *mul_sym, unsigned level) const;
@@ -266,6 +266,9 @@ inline bool is_zero(const numeric &x)
 inline bool is_positive(const numeric &x)
 { return x.is_positive(); }
 
+inline bool is_negative(const numeric &x)
+{ return x.is_negative(); }
+
 inline bool is_integer(const numeric &x)
 { return x.is_integer(); }