Merge pull request #7 from polyfem/mtao/cpp20

h5pp works in cpp20 by killing off use of fmt

Author: teseoch

CMakeLists.txt

@@ -123,10 +123,6 @@ target_link_libraries(paraviewo PUBLIC Eigen3::Eigen)
 include(tinyxml)
 target_link_libraries(paraviewo PUBLIC tinyxml2)
 
-# fmt library
-include(fmt)
-target_link_libraries(paraviewo PUBLIC fmt::fmt)
-
 # h5pp + HDF5 library
 include(hdf5)
 target_link_libraries(paraviewo PUBLIC hdf5::hdf5)

cmake/recipes/fmt.cmake

@@ -8,8 +8,9 @@ endif()
 message(STATUS "Third-party: creating target 'h5pp'")
 
 SET(H5PP_ENABLE_EIGEN3 ON)
-SET(H5PP_ENABLE_FMT ON)
+SET(H5PP_ENABLE_FMT OFF)
+SET(H5PP_ENABLE_SPDLOG OFF)
 SET(H5PP_IS_SUBPROJECT ON)
 
 include(CPM)
-CPMAddPackage("gh:wildmeshing/h5pp#9872c2f239271c711d572035cc689ae485e12a4c")
+CPMAddPackage("gh:wildmeshing/h5pp#b46d66b16c11f4e94752433e61d92b152be3d1d8")

cmake/recipes/h5pp.cmake

@@ -1,7 +1,6 @@
 #include "PVDWriter.hpp"
 
 #include <tinyxml2.h>
-#include <fmt/core.h>
 
 namespace paraviewo
 {
@@ -27,7 +26,7 @@ namespace paraviewo
 		for (int i = 0; i <= time_steps; i += skip_frame)
 		{
 			tinyxml2::XMLElement *dataset = collection->InsertNewChildElement("DataSet");
-			dataset->SetAttribute("timestep", fmt::format("{:g}", t0 + i * dt).c_str());
+			dataset->SetAttribute("timestep", std::to_string(t0 + i * dt).c_str());
 			dataset->SetAttribute("group", "");
 			dataset->SetAttribute("part", "0");
 			dataset->SetAttribute("file", vtu_names(i).c_str());