Make number conversions explicit

Author: alandefreitas

examples/data_distribution/scatter3/scatter3_1.cpp

@@ -19,22 +19,22 @@ std::tuple<std::vector<double>, std::vector<double>, std::vector<double>>
 generate_data() {
     using namespace matplot;
     int n = 16;
-    auto r = iota(-n, 2., n);
+    auto r = iota(static_cast<double>(-n), 2., static_cast<double>(n));
     auto theta = transform(r, [n](double x) { return x / n * pi; });
     auto phi = transform(r, [n](double x) { return x / n * pi / 2.; });
     auto sinphi = transform(phi, [](double x) { return sin(x); });
     auto cosphi = transform(phi, [](double x) { return cos(x); });
     cosphi.front() = 0;
     cosphi.back() = 0;
-    auto sintheta = transform(theta, [n](double x) { return sin(x); });
+    auto sintheta = transform(theta, [](double x) { return sin(x); });
     sintheta.front() = 0;
     sintheta.back() = 0;
-    auto costheta = transform(theta, [n](double x) { return cos(x); });
+    auto costheta = transform(theta, [](double x) { return cos(x); });
     std::vector<std::vector<double>> X(17, std::vector<double>(17, 0.));
     std::vector<std::vector<double>> Y(17, std::vector<double>(17, 0.));
     std::vector<std::vector<double>> Z(17, std::vector<double>(17, 0.));
-    for (size_t i = 0; i < n + 1; ++i) {
-        for (size_t j = 0; j < n + 1; ++j) {
+    for (int i = 0; i < n + 1; ++i) {
+        for (int j = 0; j < n + 1; ++j) {
             X[i][j] = cosphi[i] * costheta[j];
             Y[i][j] = cosphi[i] * sintheta[j];
             Z[i][j] = sinphi[i];

examples/data_distribution/scatter3/scatter3_2.cpp

@@ -38,8 +38,8 @@ generate_data() {
     std::vector<std::vector<double>> X(17, std::vector<double>(17, 0.));
     std::vector<std::vector<double>> Y(17, std::vector<double>(17, 0.));
     std::vector<std::vector<double>> Z(17, std::vector<double>(17, 0.));
-    for (size_t i = 0; i < n + 1; ++i) {
-        for (size_t j = 0; j < n + 1; ++j) {
+    for (int i = 0; i < n + 1; ++i) {
+        for (int j = 0; j < n + 1; ++j) {
             X[i][j] = cosphi[i] * costheta[j];
             Y[i][j] = cosphi[i] * sintheta[j];
             Z[i][j] = sinphi[i];

examples/data_distribution/scatter3/scatter3_3.cpp

@@ -43,8 +43,8 @@ generate_data() {
     std::vector<std::vector<double>> X(17, std::vector<double>(17, 0.));
     std::vector<std::vector<double>> Y(17, std::vector<double>(17, 0.));
     std::vector<std::vector<double>> Z(17, std::vector<double>(17, 0.));
-    for (size_t i = 0; i < n + 1; ++i) {
-        for (size_t j = 0; j < n + 1; ++j) {
+    for (int i = 0; i < n + 1; ++i) {
+        for (int j = 0; j < n + 1; ++j) {
             X[i][j] = cosphi[i] * costheta[j];
             Y[i][j] = cosphi[i] * sintheta[j];
             Z[i][j] = sinphi[i];

examples/data_distribution/scatter3/scatter3_6.cpp

@@ -42,8 +42,8 @@ generate_data() {
     std::vector<std::vector<double>> X(17, std::vector<double>(17, 0.));
     std::vector<std::vector<double>> Y(17, std::vector<double>(17, 0.));
     std::vector<std::vector<double>> Z(17, std::vector<double>(17, 0.));
-    for (size_t i = 0; i < n + 1; ++i) {
-        for (size_t j = 0; j < n + 1; ++j) {
+    for (int i = 0; i < n + 1; ++i) {
+        for (int j = 0; j < n + 1; ++j) {
             X[i][j] = cosphi[i] * costheta[j];
             Y[i][j] = cosphi[i] * sintheta[j];
             Z[i][j] = sinphi[i];

examples/geography/geoplot/geoplot_6.cpp

@@ -8,7 +8,7 @@ class eurotrip_solver {
   public:
     eurotrip_solver(const vector<double> &lat, const vector<double> &lon,
                     const vector<string> &names, axes_handle ax);
-    void run(int iterations = 100);
+    void run(size_t iterations = 100);
 
   private:
     void setup_starting_point(size_t iteration);
@@ -40,7 +40,7 @@ eurotrip_solver::eurotrip_solver(const vector<double> &lat,
                                  const vector<string> &names, axes_handle ax)
     : lat_(lat), lon_(lon), names_(names), ax_(ax) {}
 
-void eurotrip_solver::run(int iterations) {
+void eurotrip_solver::run(size_t iterations) {
     for (size_t i = 0; i < iterations; ++i) {
         setup_starting_point(i);
         iteration();

examples/geography/geoplot/geoplot_7.cpp

@@ -8,7 +8,7 @@ class americas_trip_solver {
   public:
     americas_trip_solver(const vector<double> &lat, const vector<double> &lon,
                          const vector<string> &names, axes_handle ax);
-    void run(int iterations = 100);
+    void run(size_t iterations = 100);
 
   private:
     void setup_axes();
@@ -45,7 +45,7 @@ americas_trip_solver::americas_trip_solver(const vector<double> &lat,
     setup_axes();
 }
 
-void americas_trip_solver::run(int iterations) {
+void americas_trip_solver::run(size_t iterations) {
     for (size_t i = 0; i < iterations; ++i) {
         setup_starting_point(i);
         iteration();