From: Richard Kreckel <kreckel@ginac.de>
Date: Sun, 8 Nov 2015 22:18:19 +0000 (+0100)
Subject: Fix some pedantic compiler warnings.
X-Git-Tag: release_1-7-0~7^2~57
X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=commitdiff_plain;h=852fb174c43b49a3ce1b568f959d23e8a1959ee1;ds=sidebyside

Fix some pedantic compiler warnings.

Found with CLang++ -Wall. (There remain some more, but these are
more ugly to fix.)
---

diff --git a/ginac/basic.h b/ginac/basic.h
index f11db911..0295d015 100644
--- a/ginac/basic.h
+++ b/ginac/basic.h
@@ -39,7 +39,7 @@
 namespace GiNaC {
 
 class ex;
-class ex_is_less;
+struct ex_is_less;
 class symbol;
 class numeric;
 class relational;
diff --git a/ginac/factor.cpp b/ginac/factor.cpp
index 33b8f501..8f8c87e8 100644
--- 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_)
 	{
diff --git a/ginac/numeric.cpp b/ginac/numeric.cpp
index 209cb700..c86369fb 100644
--- a/ginac/numeric.cpp
+++ b/ginac/numeric.cpp
@@ -2023,7 +2023,7 @@ lanczos_coeffs::lanczos_coeffs()
 	coeffs[3].swap(coeffs_120);
 }
 
-static const cln::float_format_t guess_precision(const cln::cl_N& x)
+static cln::float_format_t guess_precision(const cln::cl_N& x)
 {
 	cln::float_format_t prec = cln::default_float_format;
 	if (!instanceof(realpart(x), cln::cl_RA_ring))
diff --git a/ginac/ptr.h b/ginac/ptr.h
index 76c3ee7e..0f5dae37 100644
--- a/ginac/ptr.h
+++ b/ginac/ptr.h
@@ -54,7 +54,7 @@ private:
  *      from refcounted)
  *    T* T::duplicate() member function (only if makewriteable() is used) */
 template <class T> class ptr {
-	friend class std::less<ptr<T>>;
+	friend struct std::less<ptr<T>>;
 
 	// NB: This implementation of reference counting is not thread-safe.
 	// The reference counter needs to be incremented/decremented atomically,