1 files changed, 45 insertions, 0 deletions
diff --git a/test/postinstall/cpp_app/cpp_app.cpp b/test/postinstall/cpp_app/cpp_app.cpp
new file mode 100644
index 00000000..9bcab2fb
--- /dev/null
+++ b/test/postinstall/cpp_app/cpp_app.cpp
@@ -0,0 +1,45 @@
+#include <iostream>
+#include <proj.h>
+
+int test_transform() {
+    PJ *P;
+    PJ_COORD a, b;
+    P = proj_create_crs_to_crs(
+        PJ_DEFAULT_CTX,
+        "EPSG:4326",
+        "+proj=utm +zone=32 +datum=WGS84", // or EPSG:32632
+        NULL);
+    if (0 == P) {
+        std::cerr << "Oops" << std::endl;
+        return 1;
+    }
+    // Copenhagen: 55d N, 12d E
+    a = proj_coord(55, 12, 0, 0);
+    b = proj_trans(P, PJ_FWD, a);
+    std::cout.precision(2);
+    std::cout.setf( std::ios::fixed, std::ios::floatfield );
+    std::cout << "easting: " << b.enu.e << ", northing: " << b.enu.n;
+    b = proj_trans(P, PJ_INV, b);
+    std::cout << ", latitude: " << b.lp.lam << ", longitude: " << b.lp.phi << std::endl;
+    proj_destroy(P);
+    return 0;
+}
+
+int main(int argc, char *argv[]) {
+    PJ_INFO info;
+    info = proj_info();
+    if(argc == 2 && argv[1][0] == '-') {
+        switch(argv[1][1]) {
+            case 't':
+                return(test_transform());
+            case 's':
+                std::cout << info.searchpath << std::endl;
+                return(0);
+            case 'v':
+                std::cout << info.major << '.' << info.minor << '.' << info.patch << std::endl;
+                return(0);
+        }
+    }
+    std::cerr << "Use option -t, -s or -v" << std::endl;
+    return(1);
+}