From: mcecchetti <mcecchetti@users.sourceforge.net>
Date: Sun, 6 Jul 2008 15:36:49 +0000 (+0000)
Subject: modified is_positive and is_negative implementation for Vector and Matrix in order... 
X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=40f90655923d3f6ab288055fdb6641b45066e8c9;p=inkscape.git

modified is_positive and is_negative implementation for Vector and Matrix in order to make 2geom linkable with a gsl release >= 1.8
---

diff --git a/src/2geom/numeric/matrix.cpp b/src/2geom/numeric/matrix.cpp
index 30b452b37..bb2a4cefd 100644
--- a/src/2geom/numeric/matrix.cpp
+++ b/src/2geom/numeric/matrix.cpp
@@ -33,8 +33,8 @@
  */
 
 
-#include "matrix.h"
-#include "vector.h"
+#include <2geom/numeric/matrix.h>
+#include <2geom/numeric/vector.h>
 
 
 
diff --git a/src/2geom/numeric/matrix.h b/src/2geom/numeric/matrix.h
index 156b6e9a2..e9b6e6e9e 100644
--- a/src/2geom/numeric/matrix.h
+++ b/src/2geom/numeric/matrix.h
@@ -89,12 +89,26 @@ class BaseMatrixImpl
 
 	bool is_positive() const
 	{
-		return gsl_matrix_ispos(m_matrix);
+        for ( unsigned int i = 0; i < rows(); ++i )
+        {
+            for ( unsigned int j = 0; j < columns(); ++j )
+            {
+                if ( (*this)(i,j) <= 0 ) return false;
+            }
+        }
+        return true;
 	}
 
 	bool is_negative() const
 	{
-		return gsl_matrix_isneg(m_matrix);
+        for ( unsigned int i = 0; i < rows(); ++i )
+        {
+            for ( unsigned int j = 0; j < columns(); ++j )
+            {
+                if ( (*this)(i,j) >= 0 ) return false;
+            }
+        }
+        return true;
 	}
 
 	bool is_non_negative() const
diff --git a/src/2geom/numeric/vector.h b/src/2geom/numeric/vector.h
index 3e53405f4..04c133372 100644
--- a/src/2geom/numeric/vector.h
+++ b/src/2geom/numeric/vector.h
@@ -73,12 +73,20 @@ class BaseVectorImpl
 
 	bool is_positive() const
 	{
-		return gsl_vector_ispos(m_vector);
+	    for ( size_t i = 0; i < size(); ++i )
+	    {
+	        if ( (*this)[i] <= 0 ) return false;
+	    }
+		return true;
 	}
 
 	bool is_negative() const
 	{
-		return gsl_vector_isneg(m_vector);
+        for ( size_t i = 0; i < size(); ++i )
+        {
+            if ( (*this)[i] >= 0 ) return false;
+        }
+        return true;
 	}
 
 	bool is_non_negative() const