Examples

Table of Contents

• Compiling the examples

• Example 1: Write/Read a 2-dimensional array
• Example 2: Write/Read a custom C++ type
• Example 3: Serialization

Compiling the examples

All examples have been compiled on a MacBook Pro with an Apple M2 Max chip and HDF5 1.14.3 installed via homebrew. We further used clang 17.0.6 together with cmake 3.29.1.

Assuming that the actual example code is in a file main.cpp, the following generic CMakeLists.txt should work for all examples:

cmake_minimum_required(VERSION 3.20)
project(example CXX)
 
# set required standard
set(CMAKE_BUILD_TYPE Release)
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
# fetch h5 from github
set(Build_Tests OFF CACHE BOOL "" FORCE)
include (FetchContent)
FetchContent_Declare(
  h5
  GIT_REPOSITORY https://github.com/TRIQS/h5.git
  GIT_TAG        1.2.x
)
FetchContent_MakeAvailable(h5)
 
# build the example
add_executable(ex main.cpp)
target_link_libraries(ex h5::h5_c h5::hdf5)