From 35e60f607c83056e787237b469ae96c0fe27bcf7 Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Tue, 24 Jul 2018 21:59:15 +0200
Subject: [PATCH 04/24] fix warnings for doc-eigen-prerequisites

---
 doc/snippets/MatrixBase_cwiseEqual.cpp          | 2 +-
 doc/snippets/MatrixBase_cwiseNotEqual.cpp       | 2 +-
 unsupported/Eigen/src/IterativeSolvers/DGMRES.h | 2 +-
 unsupported/doc/examples/FFT.cpp                | 6 +++---
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/doc/snippets/MatrixBase_cwiseEqual.cpp b/doc/snippets/MatrixBase_cwiseEqual.cpp
index eb3656f4c..469af642c 100644
--- a/doc/snippets/MatrixBase_cwiseEqual.cpp
+++ b/doc/snippets/MatrixBase_cwiseEqual.cpp
@@ -3,5 +3,5 @@ m << 1, 0,
      1, 1;
 cout << "Comparing m with identity matrix:" << endl;
 cout << m.cwiseEqual(MatrixXi::Identity(2,2)) << endl;
-int count = m.cwiseEqual(MatrixXi::Identity(2,2)).count();
+Index count = m.cwiseEqual(MatrixXi::Identity(2,2)).count();
 cout << "Number of coefficients that are equal: " << count << endl;
diff --git a/doc/snippets/MatrixBase_cwiseNotEqual.cpp b/doc/snippets/MatrixBase_cwiseNotEqual.cpp
index 6a2e4fb6c..7f0a105d6 100644
--- a/doc/snippets/MatrixBase_cwiseNotEqual.cpp
+++ b/doc/snippets/MatrixBase_cwiseNotEqual.cpp
@@ -3,5 +3,5 @@ m << 1, 0,
      1, 1;
 cout << "Comparing m with identity matrix:" << endl;
 cout << m.cwiseNotEqual(MatrixXi::Identity(2,2)) << endl;
-int count = m.cwiseNotEqual(MatrixXi::Identity(2,2)).count();
+Index count = m.cwiseNotEqual(MatrixXi::Identity(2,2)).count();
 cout << "Number of coefficients that are not equal: " << count << endl;
diff --git a/unsupported/Eigen/src/IterativeSolvers/DGMRES.h b/unsupported/Eigen/src/IterativeSolvers/DGMRES.h
index eff2dc8ad..eae717aa2 100644
--- a/unsupported/Eigen/src/IterativeSolvers/DGMRES.h
+++ b/unsupported/Eigen/src/IterativeSolvers/DGMRES.h
@@ -173,7 +173,7 @@ class DGMRES : public IterativeSolverBase<DGMRES<_MatrixType,_Preconditioner> >
   /** 
    * Set the restart value (default is 30)  
    */
-  Index set_restart(const Index restart) { m_restart=restart; }
+  void set_restart(const Index restart) { m_restart=restart; }
   
   /** 
    * Set the number of eigenvalues to deflate at each restart 
diff --git a/unsupported/doc/examples/FFT.cpp b/unsupported/doc/examples/FFT.cpp
index fcbf81276..85e8a0241 100644
--- a/unsupported/doc/examples/FFT.cpp
+++ b/unsupported/doc/examples/FFT.cpp
@@ -61,14 +61,14 @@ template <typename T>
 void RandomFill(std::vector<T> & vec)
 {
     for (size_t k=0;k<vec.size();++k)
-        vec[k] = T( rand() )/T(RAND_MAX) - .5;
+        vec[k] = T( rand() )/T(RAND_MAX) - T(.5);
 }
 
 template <typename T>
 void RandomFill(std::vector<std::complex<T> > & vec)
 {
     for (size_t k=0;k<vec.size();++k)
-        vec[k] = std::complex<T> ( T( rand() )/T(RAND_MAX) - .5, T( rand() )/T(RAND_MAX) - .5);
+        vec[k] = std::complex<T> ( T( rand() )/T(RAND_MAX) - T(.5), T( rand() )/T(RAND_MAX) - T(.5));
 }
 
 template <typename T_time,typename T_freq>
@@ -85,7 +85,7 @@ void fwd_inv(size_t nfft)
     vector<T_time> timebuf2;
     fft.inv(timebuf2,freqbuf);
 
-    long double rmse = mag2(timebuf - timebuf2) / mag2(timebuf);
+    T_time rmse = mag2(timebuf - timebuf2) / mag2(timebuf);
     cout << "roundtrip rmse: " << rmse << endl;
 }
 
-- 
2.17.1