advection-diffusion: Rename and use 'size_t'.

Signed-off-by: Matthew Emmett <[email protected]>

Author: memmett

examples/CMakeLists.txt

@@ -1 +1 @@
-add_subdirectory(ad)
+add_subdirectory(advection_diffusion)

examples/ad/CMakeLists.txt

@@ -0,0 +1,18 @@
+message(STATUS "  advection_diffusion")
+include_directories(
+    ${fftw3_INCLUDES}
+    ${pfasst_INCLUDES}
+)
+
+set(advection_diffusion_SOURCES
+    ${CMAKE_CURRENT_SOURCE_DIR}/advection_diffusion.cpp
+)
+
+add_executable(advdiff ${advection_diffusion_SOURCES})
+add_dependencies(advdiff fftw3)
+target_link_libraries(advdiff
+    ${fftw3_LIBS}
+)
+set_target_properties(advdiff
+    PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${pfasst_BINARY_DIR}/examples
+)

examples/advection_diffusion/CMakeLists.txt

@@ -76,7 +76,7 @@ class FFT {
   complex<double>* forward(const dvector& x)
   {
     workspace *wk = get_workspace(x.size());
-    for (unsigned int i=0; i<x.size(); i++)
+    for (size_t i=0; i<x.size(); i++)
       wk->z[i] = x[i];
     fftw_execute_dft(wk->ffft, wk->wk, wk->wk);
     return wk->z;
@@ -86,7 +86,7 @@ class FFT {
   {
     workspace *wk = get_workspace(x.size());
     fftw_execute_dft(wk->ifft, wk->wk, wk->wk);
-    for (unsigned int i=0; i<x.size(); i++)
+    for (size_t i=0; i<x.size(); i++)
       x[i] = real(wk->z[i]);
   }