# Copyright (c) 2017-2023, University of Tennessee. All rights reserved.
# SPDX-License-Identifier: BSD-3-Clause
# This program is free software: you can redistribute it and/or modify it under
# the terms of the BSD 3-Clause license. See the accompanying LICENSE file.

# CXX compiler must match the one used to compiler LAPACK++.
# Set it in your environment.

cmake_minimum_required( VERSION 3.8 )

project(
    lapackpp_example
    LANGUAGES CXX
)

#-------------------------------------------------------------------------------
# Enforce out-of-source build
string( TOLOWER "${CMAKE_CURRENT_SOURCE_DIR}" source_dir )
string( TOLOWER "${CMAKE_CURRENT_BINARY_DIR}" binary_dir )
if ("${source_dir}" STREQUAL "${binary_dir}")
    message( FATAL_ERROR
    "Compiling with CMake requires an out-of-source build. To proceed:
    rm -rf CMakeCache.txt CMakeFiles/   # delete files in ${CMAKE_CURRENT_SOURCE_DIR}
    mkdir build
    cd build
    cmake ..
    make" )
endif()

#-------------------------------------------------------------------------------
find_package( lapackpp REQUIRED )

#--------------------
add_executable(
    example_potrf
    example_potrf.cc
)

target_link_libraries(
    example_potrf
    lapackpp
)

#-------------------------------------------------------------------------------
# CTest

# Get precisions to test. See .github/workflows/test.sh
set( test_args $ENV{test_args} )
if (NOT test_args)
    set( test_args "s d c z" )
endif()
string( REPLACE " " ";" test_args ${test_args} ) # convert to list

enable_testing()
add_test( NAME example_gemm COMMAND ./example_potrf ${test_args} )