Fix some pedantic compiler warnings.

[ginac.git] / ginac / factor.cpp

diff --git a/ginac/factor.cpp b/ginac/factor.cpp
index 33b8f50125ed853f36ff9a0ceb3480504419e61f..8f8c87e858340e625df38a3bffe1fb3cfc0356fa 100644 (file)
--- a/ginac/factor.cpp
+++ b/ginac/factor.cpp
@@ -679,7 +679,9 @@ typedef vector<cl_MI> mvec;
 
 class modular_matrix
 {
+#ifdef DEBUGFACTOR
        friend ostream& operator<<(ostream& o, const modular_matrix& m);
+#endif
 public:
        modular_matrix(size_t r_, size_t c_, const cl_MI& init) : r(r_), c(c_)
        {