Add C++ .mat backup/restore test of MatDense and MatSparse.

misc/test/CMakeLists.txt

@@ -144,7 +144,7 @@ endif()
 
 if(NOT NOCPPTESTS)
 	foreach(TEST_FPP float double)
-		foreach(FILE faust_mult2 faust_mult faust_mult_cplx test_Vect_min test_MatDense_get_row test_MatDense_lower_upper_tri test_MatDense_nonzeros_indices test_Transform_move test_TransformHelper_and_Transform_copy_ctor test_TransformHelper_and_Transform_fac_iterato test_TransformHelper_variadic_template_ctor test_MatDense_min test_TH_pack_factors faust_transform_omp_mul faust_pruneout faust_transform_optimize_storage faust_transform_optimize faust_prox_blockdiag test_MatSparse_vstack test_MatSparse_hstack)
+		foreach(FILE faust_mult2 faust_mult faust_mult_cplx test_Vect_min test_MatDense_get_row test_MatDense_lower_upper_tri test_MatDense_nonzeros_indices test_Transform_move test_TransformHelper_and_Transform_copy_ctor test_TransformHelper_and_Transform_fac_iterato test_TransformHelper_variadic_template_ctor test_MatDense_min test_TH_pack_factors faust_transform_omp_mul faust_pruneout faust_transform_optimize_storage faust_transform_optimize faust_prox_blockdiag test_MatSparse_vstack test_MatSparse_hstack test_matio_save_read)
 			if(USE_GPU_MOD AND ${FILE} MATCHES test_TH_pack_factors|test_TransformHelper_variadic_template_ctor|faust_transform_optimize|test_TransformHelper_and_Transform_fac_iterato|faust_mult2|faust_transform_omp_mul|test_Transform_move|test_TransformHelper_and_Transform_copy_ctor AND ${TEST_FPP} MATCHES float)# gpu_mod handles float but not FaustGPU
 				message(STATUS ${FILE}_${TEST_FPP} " skipped")
 				continue()

misc/test/src/C++/unit/test_matio_save_read.cpp.in

+
+#include "faust_MatDense.h"
+
+using namespace Faust;
+typedef @TEST_FPP@ FPP;
+
+int main(int argc, char** argv)
+{
+    // test MatDense backup and restore
+    auto mat = MatDense<FPP, Cpu>::randMat(32, 128);
+    mat->save_to_mat_file("rand_matdense.mat", "test");
+    MatDense<FPP, Cpu> read_mat;
+    read_mat.read_from_mat_file("rand_matdense.mat", "test");
+    *mat -= read_mat;
+    assert(mat->norm() == 0);
+    //test MatSparse backup and restore
+    auto smat = MatSparse<FPP, Cpu>::randMat(32, 128, .1);
+    smat->save_to_mat_file("rand_matsparse.mat", "test");
+    MatSparse<FPP, Cpu> read_smat;
+    read_smat.read_from_mat_file("rand_matsparse.mat", "test");
+    MatDense<FPP, Cpu> diff = *smat;
+    diff -= read_smat;
+    assert(diff.norm() == 0);
+}