Merge pull request #3 from embray/icomplex-polynomial-eval

Fix complex interval polynomial evaluation

.gitignore

@@ -17,5 +17,10 @@ lib/*.la
 libtool
 m4/
 tests/.deps/
+tests/.libs/
+tests/*.log
+tests/*.o
+tests/*.trs
+tests/*_test
 tests/Makefile
 tests/Makefile.in

.travis.yml

@@ -0,0 +1,17 @@
+language: cpp
+os: linux
+dist: bionic
+compiler:
+  - gcc
+  - clang
+addons:
+  apt:
+    packages:
+      - libmpfr-dev
+script:
+  - autoreconf -f -i
+  - ./configure
+  - make
+  - make check
+after_failure:
+  - tail -n +1 tests/*.log 2>/dev/null

configure.ac

@@ -1,7 +1,6 @@
 AC_INIT([libsirocco], [2.0], [mmarco@unizar.es])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
-: ${CXXFLAGS=-O0 -g}
 AM_INIT_AUTOMAKE([foreign -Wall])
 AM_PROG_AR
 AC_PROG_CXX

include/polynomial.hpp

@@ -85,20 +85,20 @@ std::ostream & operator<< (std::ostream &output, const Polynomial<T> &op) {
 			if (i == 0)
 				if (op.coef[0] == T(1))
 					output << "1";
-			if (i != 0)
+			if (i != 0) {
-				if (i-j == 0)
+				if (i-j == 0) {
 					if (j == 1)
 						output << "y";
 					else
 						output << "y^" << j;
-				else if (i-j == 1)
+				} else if (i-j == 1) {
 					if (j == 0)
 						output << "x";
 					else if (j == 1)
 						output << "x*y";
 					else
 						output << "x*y^" << j;
-				else
+				} else {
 					if (j == 0)
 						output << "x^" << i;
 					else if (j == 1)
@@ -106,6 +106,8 @@ std::ostream & operator<< (std::ostream &output, const Polynomial<T> &op) {
 					else
 						output << "x^" << (i-j) << "*y^" << j;
 				}
+			}
+		}
 	if (allZero) output << "0";
 	return output;
 }
@@ -230,6 +232,10 @@ T Polynomial<T>::operator() (const T &x, const T &y) const {
 	return this->evalPolClassic (x,y);
 }
 
+// Defined in lib/polynomial.cpp
+template <> IComplex Polynomial<IComplex>::operator() (const IComplex &x, const IComplex &y) const;
+template <> MPIComplex Polynomial<MPIComplex>::operator () (const MPIComplex &x, const MPIComplex &y) const;
+
 template <class T>
 T Polynomial<T>::diffX (const T &x, const T &y) const {
 		// coef[(i*(i+1))/2 + j] is coeficient of monomial of degree 'i',
@@ -311,6 +317,10 @@ T Polynomial<T>::diffY (const T &x, const T &y) const {
 	return this->evalPolYClassic (x,y);
 }
 
+// Defined in lib/polynomial.cpp
+template <> IComplex Polynomial<IComplex>::diffY (const IComplex &x, const IComplex &y) const;
+template <> MPIComplex Polynomial<MPIComplex>::diffY (const MPIComplex &x, const MPIComplex &y) const;
+
 
 template <class T>
 T Polynomial<T>::diffXX (const T &x, const T &y) const {

include/sirocco.h

@@ -5,7 +5,9 @@
 #include <mpfr.h>
 
 // ACTIVATE ROUND MODE CONTROL
-#pragma STDC FENV_ACCESS on
+#ifndef __clang__
+#pragma STDC FENV_ACCESS ON
+#endif
 
 
 double * homotopyPath (int degree, double *_coef, double _y0R, double _y0I);

include/sirocco.hpp

@@ -8,7 +8,9 @@
 
 
 // ACTIVATE ROUND MODE CONTROL
-#pragma STDC FENV_ACCESS on
+#ifndef __clang__
+#pragma STDC FENV_ACCESS ON
+#endif
 
 typedef std::complex<double> Complex;
 

lib/icomplex.cpp

@@ -5,7 +5,9 @@
 #define MIN(a,b) (((a) < (b))? (a) : (b))
 #define MAX(a,b) (((a) > (b))? (a) : (b))
 
-#pragma STDC FENV_ACCESS on
+#ifndef __clang__
+#pragma STDC FENV_ACCESS ON
+#endif
 
 
 // CONSTRUCTORS

lib/interval.cpp

@@ -5,7 +5,9 @@
 
 
 // ACTIVATE ROUND MODE CONTROL
-#pragma STDC FENV_ACCESS on
+#ifndef __clang__
+#pragma STDC FENV_ACCESS ON
+#endif
 
 // MACROS FOR MIN AND MAX
 #define MIN(a,b) (((a) < (b))? (a) : (b))

lib/mp_interval.cpp

@@ -80,21 +80,25 @@ MPInterval & MPInterval::operator= (const MPInterval &op) {
 	// UPDATE VALUES
 	mpfr_set (this->a, op.a, MPFR_RNDD);
 	mpfr_set (this->b, op.b, MPFR_RNDU);
+	return *this;
 }
 MPInterval & MPInterval::operator= (const Interval &op) {
 	// UPDATE VALUES
 	mpfr_set_d (this->a, op.a, MPFR_RNDD);
 	mpfr_set_d (this->b, op.b, MPFR_RNDU);
+	return *this;
 }
 MPInterval & MPInterval::operator= (const mpfr_t op) {
 	// UPDATE VALUES
 	mpfr_set (this->a, op, MPFR_RNDD);
 	mpfr_set (this->b, op, MPFR_RNDU);
+	return *this;
 }
 MPInterval & MPInterval::operator= (double op) {
 	// UPDATE VALUES
 	mpfr_set_d (this->a, op, MPFR_RNDD);
 	mpfr_set_d (this->b, op, MPFR_RNDU);
+	return *this;
 }
 
 

lib/sirocco.cpp

@@ -17,7 +17,9 @@ using namespace std;
 // z2 = t(1+0.01i)
 ******************************************/
 
+#ifndef __clang__
 #pragma STDC FENV_ACCESS ON
+#endif
 
 // PERFORM A MINIMUM OF 5 ITERATIONS OF NEWTON METHOD TO CORRECT THE APPROXIMATION OF THE ROOT (SUPPOSED TO BE GOOD ENOUGH)
 template <>