ECC-1508: Set project language to be C++

CMakeLists.txt

@@ -21,7 +21,7 @@ cmake_minimum_required( VERSION 3.12 FATAL_ERROR )
 find_package( ecbuild 3.7 REQUIRED HINTS ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/../ecbuild)
 
 # Initialise project
-project( eccodes VERSION 2.29.0 LANGUAGES C )
+project( eccodes VERSION 2.29.0 LANGUAGES CXX )
 
 ###############################################################################
 # system checks needed for eccodes_config.h and some options like MEMFS
@@ -65,14 +65,12 @@ ecbuild_info("Operating system=${CMAKE_SYSTEM} (${EC_OS_BITS} bits)")
 ###############################################################################
 # some variables/options of this project
 
-ecbuild_add_option( FEATURE EXPERIMENTAL_BUILD_WITH_CXX
-    DESCRIPTION "Build ecCodes with a C++ compiler (Experimental)"
-    DEFAULT OFF )
-if( HAVE_EXPERIMENTAL_BUILD_WITH_CXX )
-    enable_language( CXX )
-    if( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Cray" )
-        set(CMAKE_CXX_FLAGS "-hstd=c++11 ${CMAKE_CXX_FLAGS}")
-    endif()
+if( CMAKE_CXX_COMPILER_ID STREQUAL "GNU" )
+    ecbuild_add_cxx_flags("-Wno-write-strings -Wno-deprecated")
+elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
+    ecbuild_add_cxx_flags("-Wno-deprecated")
+elseif( CMAKE_CXX_COMPILER_ID STREQUAL "Cray" )
+    set(CMAKE_CXX_FLAGS "-hstd=c++11 ${CMAKE_CXX_FLAGS}")
 endif()
 
 ecbuild_add_option( FEATURE PRODUCT_GRIB
@@ -502,9 +500,3 @@ ecbuild_info("   | bindings from PyPI with:             |")
 ecbuild_info("   |   $ pip3 install eccodes             |")
 ecbuild_info("   +--------------------------------------+")
 ecbuild_info("")
-
-if( HAVE_EXPERIMENTAL_BUILD_WITH_CXX )
-    ecbuild_warn("Please note:\n"
-                 "The option of building with C++ is currently experimental."
-                 "Do not use in operations.")
-endif()

src/CMakeLists.txt

@@ -11,356 +11,356 @@
 list( APPEND eccodes_src_files
     grib_api.h
     eccodes.h
-    action.c
-    action_class_alias.c
-    action_class_gen.c
-    action_class_if.c
-    action_class_switch.c
-    grib_accessor_class_g1fcperiod.c
-    grib_accessor_class_g1end_of_interval_monthly.c
-    grib_accessor_class_mars_param.c
-    action_class_section.c
-    action_class_list.c
-    action_class_while.c
-    action_class_put.c
-    action_class_meta.c
-    action_class_remove.c
-    action_class_rename.c
-    action_class_assert.c
-    action_class_template.c
-    action_class_trigger.c
-    action_class_when.c
-    action_class_concept.c
-    action_class_hash_array.c
-    action_class_set.c
-    action_class_set_sarray.c
-    action_class_set_darray.c
-    action_class_set_iarray.c
-    action_class_noop.c
-    action_class_write.c
-    action_class_print.c
-    action_class_close.c
-    action_class_variable.c
-    action_class_modify.c
-    action_class_transient_darray.c
-    eccodes.c
-    grib_accessor.c
-    grib_concept.c
-    grib_hash_array.c
-    grib_bufr_descriptor.c
-    grib_bufr_descriptors_array.c
-    grib_darray.c
-    grib_sarray.c
-    grib_oarray.c
-    grib_vdarray.c
-    grib_vsarray.c
-    grib_iarray.c
-    grib_viarray.c
-    codes_memfs.c
-    grib_accessor_class_array.c
-    grib_accessor_class_assert.c
-    grib_accessor_class_ascii.c
-    grib_accessor_class_bit.c
-    grib_accessor_class_bitmap.c
-    grib_accessor_class_bits.c
-    grib_accessor_class_bits_per_value.c
-    grib_accessor_class_bufr_elements_table.c
-    grib_accessor_class_bufr_data_array.c
-    grib_accessor_class_bufr_data_element.c
-    grib_accessor_class_bufr_group.c
-    grib_accessor_class_bufr_string_values.c
-    grib_accessor_class_pack_bufr_values.c
-    grib_accessor_class_unpack_bufr_values.c
-    grib_accessor_class_apply_operators.c
-    grib_accessor_class_group.c
-    grib_accessor_class_non_alpha.c
-    grib_accessor_class_g1bitmap.c
-    grib_accessor_class_g2bitmap.c
-    grib_accessor_class_concept.c
-    grib_accessor_class_hash_array.c
-    grib_accessor_class_decimal_precision.c
-    grib_accessor_class_divdouble.c
-    grib_accessor_class_budgdate.c
-    grib_accessor_class_validity_date.c
-    grib_accessor_class_validity_time.c
-    grib_accessor_class_bytes.c
-    grib_accessor_class.c
-    grib_accessor_class_change_alternative_row_scanning.c
-    grib_accessor_class_change_scanning_direction.c
-    grib_accessor_class_check_internal_version.c
-    grib_accessor_class_codeflag.c
-    grib_accessor_class_smart_table.c
-    grib_accessor_class_smart_table_column.c
-    grib_accessor_class_codetable.c
-    grib_accessor_class_codetable_units.c
-    grib_accessor_class_codetable_title.c
-    grib_accessor_class_step_human_readable.c
-    grib_accessor_class_count_file.c
-    grib_accessor_class_count_total.c
-    grib_accessor_class_double.c
-    grib_accessor_class_element.c
-    grib_accessor_class_evaluate.c
-    grib_accessor_class_g1area.c
-    grib_accessor_class_g1date.c
-    grib_accessor_class_g1monthlydate.c
-    grib_accessor_class_library_version.c
-    grib_accessor_class_when.c
-    grib_accessor_class_g1verificationdate.c
-    grib_accessor_class_g1day_of_the_year_date.c
-    grib_accessor_class_g1_half_byte_codeflag.c
-    grib_accessor_class_g1forecastmonth.c
-    grib_accessor_class_g1step_range.c
-    grib_accessor_class_g2step_range.c
-    grib_accessor_class_data_g22order_packing.c
-    grib_accessor_class_mars_step.c
-    grib_accessor_class_message_copy.c
-    grib_accessor_class_dictionary.c
-    grib_accessor_class_latlon_increment.c
-    grib_accessor_class_g2date.c
-    grib_accessor_class_g2level.c
-    grib_accessor_class_g2end_step.c
-    grib_accessor_class_g2latlon.c
-    grib_accessor_class_g2lon.c
-    grib_accessor_class_global_gaussian.c
-    grib_accessor_class_gaussian_grid_name.c
-    grib_accessor_class_gen.c
-    grib_accessor_class_getenv.c
-    grib_accessor_class_gts_header.c
-    grib_accessor_class_ifs_param.c
-    grib_accessor_class_julian_day.c
-    grib_accessor_class_julian_date.c
-    grib_accessor_class_closest_date.c
-    grib_accessor_class_latlonvalues.c
-    grib_accessor_class_latitudes.c
-    grib_accessor_class_longitudes.c
-    grib_accessor_class_missing.c
-    grib_accessor_class_offset_file.c
-    grib_accessor_class_scale.c
-    grib_accessor_class_from_scale_factor_scaled_value.c
-    grib_accessor_class_times.c
-    grib_accessor_class_forward.c
-    grib_accessor_class_g2bitmap_present.c
-    grib_accessor_class_ibmfloat.c
-    grib_accessor_class_ieeefloat.c
-    grib_accessor_class_constant.c
-    grib_accessor_class_iterator.c
-    grib_accessor_class_message.c
-    grib_accessor_class_nearest.c
-    grib_accessor_class_box.c
-    grib_accessor_class_ksec1expver.c
-    grib_accessor_class_laplacian.c
-    grib_accessor_class_label.c
-    grib_accessor_class_long.c
-    grib_accessor_class_lookup.c
-    grib_accessor_class_octahedral_gaussian.c
-    grib_accessor_class_octet_number.c
-    grib_accessor_class_headers_only.c
-    grib_accessor_class_padding.c
-    grib_accessor_class_pad.c
-    grib_accessor_class_padto.c
-    grib_accessor_class_padtoeven.c
-    grib_accessor_class_padtomultiple.c
-    grib_accessor_class_section_padding.c
-    grib_accessor_class_section_pointer.c
-    grib_accessor_class_position.c
-    grib_accessor_class_signed.c
-    grib_accessor_class_signed_bits.c
-    grib_accessor_class_section.c
-    grib_accessor_class_step_in_units.c
-    grib_accessor_class_section_length.c
-    grib_accessor_class_g1_message_length.c
-    grib_accessor_class_g1_section4_length.c
-    grib_accessor_class_size.c
-    grib_accessor_class_rdbtime_guess_date.c
-    grib_accessor_class_scale_values.c
-    grib_accessor_class_offset_values.c
-    grib_accessor_class_sprintf.c
-    grib_accessor_class_round.c
-    grib_accessor_class_spectral_truncation.c
-    grib_accessor_class_time.c
-    grib_accessor_class_transient.c
-    grib_accessor_class_trim.c
-    grib_accessor_class_transient_darray.c
-    grib_accessor_class_values.c
-    grib_accessor_class_simple_packing_error.c
-    grib_accessor_class_data_simple_packing.c
-    grib_accessor_class_count_missing.c
-    grib_accessor_class_data_sh_packed.c
-    grib_accessor_class_data_sh_unpacked.c
-    grib_accessor_class_number_of_values_data_raw_packing.c
-    grib_accessor_class_data_g1simple_packing.c
-    grib_accessor_class_data_g1shsimple_packing.c
-    grib_accessor_class_data_shsimple_packing.c
-    grib_accessor_class_data_dummy_field.c
-    grib_2order_packer_simple.c
-    grib_accessor_class_variable.c
-    grib_accessor_class_second_order_bits_per_value.c
-    grib_accessor_class_data_g2simple_packing.c
-    grib_accessor_class_data_g2simple_packing_with_preprocessing.c
-    grib_accessor_class_data_g2shsimple_packing.c
-    grib_accessor_class_data_g2complex_packing.c
-    grib_accessor_class_data_2order_packing.c
-    grib_accessor_class_data_g1second_order_row_by_row_packing.c
-    grib_accessor_class_data_g1second_order_constant_width_packing.c
-    grib_accessor_class_data_g1second_order_general_packing.c
-    grib_accessor_class_data_g1second_order_general_extended_packing.c
-    grib_accessor_class_g2grid.c
-    grib_accessor_class_unexpanded_descriptors.c
-    grib_accessor_class_expanded_descriptors.c
-    grib_accessor_class_bufrdc_expanded_descriptors.c
-    grib_accessor_class_data_apply_bitmap.c
-    grib_accessor_class_data_apply_boustrophedonic.c
-    grib_accessor_class_data_apply_boustrophedonic_bitmap.c
-    grib_accessor_class_data_secondary_bitmap.c
-    grib_accessor_class_data_g1secondary_bitmap.c
-    grib_accessor_class_data_g2secondary_bitmap.c
-    grib_accessor_class_data_jpeg2000_packing.c
-    grib_accessor_class_data_png_packing.c
-    grib_accessor_class_data_ccsds_packing.c
-    grib_accessor_class_data_raw_packing.c
-    grib_accessor_class_data_complex_packing.c
-    grib_accessor_class_data_g1complex_packing.c
-    grib_accessor_class_gds_not_present_bitmap.c
-    grib_accessor_class_data_apply_gdsnotpresent.c
-    grib_accessor_class_gds_is_present.c
-    grib_accessor_class_select_step_template.c
-    grib_accessor_class_local_definition.c
-    grib_accessor_class_g2_eps.c
-    grib_accessor_class_g2_aerosol.c
-    grib_accessor_class_g2_chemical.c
-    grib_accessor_class_g2_mars_labeling.c
-    grib_accessor_class_md5.c
-    grib_accessor_class_proj_string.c
-    grib_jasper_encoding.c
-    grib_openjpeg_encoding.c
-    action_class_set_missing.c
-    grib_accessor_class_number_of_points.c
-    grib_accessor_class_suppressed.c
-    grib_index.c
-    grib_accessor_class_number_of_points_gaussian.c
-    grib_accessor_class_number_of_values.c
-    grib_accessor_class_number_of_coded_values.c
-    grib_accessor_class_g1number_of_coded_values_sh_complex.c
-    grib_accessor_class_g1number_of_coded_values_sh_simple.c
-    grib_accessor_class_dirty.c
-    grib_accessor_class_statistics.c
-    grib_accessor_class_statistics_spectral.c
-    grib_accessor_class_unsigned.c
-    grib_accessor_class_unsigned_bits.c
-    grib_accessor_class_raw.c
-    grib_accessor_class_bufr_simple_thinning.c
-    grib_accessor_class_bufr_extract_subsets.c
-    grib_accessor_class_bufr_extract_area_subsets.c
-    grib_accessor_class_bufr_extract_datetime_subsets.c
-    grib_accessor_class_spd.c
-    grib_accessor_class_sum.c
-    grib_accessor_class_to_integer.c
-    grib_accessor_class_to_double.c
-    grib_accessor_class_to_string.c
-    grib_accessor_class_sexagesimal2decimal.c
-    grib_accessor_class_vector.c
-    grib_accessor_class_long_vector.c
-    grib_gaussian_reduced.c
-    grib_accessor_class_abstract_vector.c
-    grib_accessor_class_abstract_long_vector.c
-    grib_loader_from_handle.c
-    grib_bits.c
-    grib_timer.c
-    grib_ibmfloat.c
-    grib_ieeefloat.c
-    grib_accessor_class_reference_value_error.c
-    grib_memory.c
-    grib_buffer.c
-    grib_dumper.c
-    grib_dumper_class_serialize.c
-    grib_dumper_class_debug.c
-    grib_dumper_class_default.c
-    grib_dumper_class_keys.c
-    grib_dumper_class_bufr_encode_C.c
-    grib_dumper_class_bufr_encode_filter.c
-    grib_dumper_class_bufr_encode_fortran.c
-    grib_dumper_class_bufr_encode_python.c
-    grib_dumper_class_bufr_decode_C.c
-    grib_dumper_class_bufr_decode_filter.c
-    grib_dumper_class_bufr_decode_fortran.c
-    grib_dumper_class_bufr_decode_python.c
-    grib_dumper_class_bufr_simple.c
-    grib_dumper_class_json.c
-    grib_dumper_class_grib_encode_C.c
-    grib_dumper_class_wmo.c
-    grib_dumper_class.c
-    grib_context.c
-    grib_date.c
-    grib_fieldset.c
-    grib_filepool.c
-    grib_geography.c
-    grib_handle.c
-    grib_header_compute.c
-    grib_hash_keys.c
-    grib_io.c
-    grib_trie.c
-    grib_trie_with_rank.c
-    grib_itrie.c
-    grib_rules.c
-    grib_keys_iterator.c
-    bufr_keys_iterator.c
-    grib_parse_utils.c
-    grib_query.c
-    grib_scaling.c
-    grib_templates.c
-    grib_dependency.c
-    grib_value.c
-    grib_errors.c
-    grib_expression_class_binop.c
-    grib_expression_class_logical_and.c
-    grib_expression_class_logical_or.c
-    grib_expression_class_is_in_dict.c
-    grib_expression_class_true.c
-    grib_expression_class_string_compare.c
-    grib_expression_class_unop.c
-    grib_expression_class_functor.c
-    grib_expression_class_accessor.c
-    grib_expression_class_is_in_list.c
-    grib_expression_class_is_integer.c
-    grib_expression_class_length.c
-    grib_expression_class_long.c
-    grib_expression_class_double.c
-    grib_expression_class_string.c
-    grib_expression_class_sub_string.c
-    grib_box.c
-    grib_box_class.c
-    grib_box_class_gen.c
-    grib_nearest.c
-    grib_nearest_class.c
-    grib_nearest_class_gen.c
-    grib_nearest_class_regular.c
-    grib_nearest_class_reduced.c
-    grib_nearest_class_latlon_reduced.c
-    grib_nearest_class_sh.c
-    grib_nearest_class_lambert_conformal.c
-    grib_nearest_class_lambert_azimuthal_equal_area.c
-    grib_nearest_class_mercator.c
-    grib_nearest_class_polar_stereographic.c
-    grib_nearest_class_space_view.c
-    grib_iterator_class_polar_stereographic.c
-    grib_iterator_class_lambert_azimuthal_equal_area.c
-    grib_iterator_class_lambert_conformal.c
-    grib_iterator_class_mercator.c
-    grib_iterator.c
-    grib_iterator_class.c
-    grib_iterator_class_gaussian.c
-    grib_iterator_class_gaussian_reduced.c
-    grib_iterator_class_latlon_reduced.c
-    grib_iterator_class_gen.c
-    grib_iterator_class_latlon.c
-    grib_iterator_class_regular.c
-    grib_iterator_class_space_view.c
-    grib_expression.c
-    codes_util.c
-    grib_util.c
-    bufr_util.c
-    string_util.c
-    functions.c
+    action.cpp
+    action_class_alias.cpp
+    action_class_gen.cpp
+    action_class_if.cpp
+    action_class_switch.cpp
+    grib_accessor_class_g1fcperiod.cpp
+    grib_accessor_class_g1end_of_interval_monthly.cpp
+    grib_accessor_class_mars_param.cpp
+    action_class_section.cpp
+    action_class_list.cpp
+    action_class_while.cpp
+    action_class_put.cpp
+    action_class_meta.cpp
+    action_class_remove.cpp
+    action_class_rename.cpp
+    action_class_assert.cpp
+    action_class_template.cpp
+    action_class_trigger.cpp
+    action_class_when.cpp
+    action_class_concept.cpp
+    action_class_hash_array.cpp
+    action_class_set.cpp
+    action_class_set_sarray.cpp
+    action_class_set_darray.cpp
+    action_class_set_iarray.cpp
+    action_class_noop.cpp
+    action_class_write.cpp
+    action_class_print.cpp
+    action_class_close.cpp
+    action_class_variable.cpp
+    action_class_modify.cpp
+    action_class_transient_darray.cpp
+    eccodes.cpp
+    grib_accessor.cpp
+    grib_concept.cpp
+    grib_hash_array.cpp
+    grib_bufr_descriptor.cpp
+    grib_bufr_descriptors_array.cpp
+    grib_darray.cpp
+    grib_sarray.cpp
+    grib_oarray.cpp
+    grib_vdarray.cpp
+    grib_vsarray.cpp
+    grib_iarray.cpp
+    grib_viarray.cpp
+    codes_memfs.cpp
+    grib_accessor_class_array.cpp
+    grib_accessor_class_assert.cpp
+    grib_accessor_class_ascii.cpp
+    grib_accessor_class_bit.cpp
+    grib_accessor_class_bitmap.cpp
+    grib_accessor_class_bits.cpp
+    grib_accessor_class_bits_per_value.cpp
+    grib_accessor_class_bufr_elements_table.cpp
+    grib_accessor_class_bufr_data_array.cpp
+    grib_accessor_class_bufr_data_element.cpp
+    grib_accessor_class_bufr_group.cpp
+    grib_accessor_class_bufr_string_values.cpp
+    grib_accessor_class_pack_bufr_values.cpp
+    grib_accessor_class_unpack_bufr_values.cpp
+    grib_accessor_class_apply_operators.cpp
+    grib_accessor_class_group.cpp
+    grib_accessor_class_non_alpha.cpp
+    grib_accessor_class_g1bitmap.cpp
+    grib_accessor_class_g2bitmap.cpp
+    grib_accessor_class_concept.cpp
+    grib_accessor_class_hash_array.cpp
+    grib_accessor_class_decimal_precision.cpp
+    grib_accessor_class_divdouble.cpp
+    grib_accessor_class_budgdate.cpp
+    grib_accessor_class_validity_date.cpp
+    grib_accessor_class_validity_time.cpp
+    grib_accessor_class_bytes.cpp
+    grib_accessor_class.cpp
+    grib_accessor_class_change_alternative_row_scanning.cpp
+    grib_accessor_class_change_scanning_direction.cpp
+    grib_accessor_class_check_internal_version.cpp
+    grib_accessor_class_codeflag.cpp
+    grib_accessor_class_smart_table.cpp
+    grib_accessor_class_smart_table_column.cpp
+    grib_accessor_class_codetable.cpp
+    grib_accessor_class_codetable_units.cpp
+    grib_accessor_class_codetable_title.cpp
+    grib_accessor_class_step_human_readable.cpp
+    grib_accessor_class_count_file.cpp
+    grib_accessor_class_count_total.cpp
+    grib_accessor_class_double.cpp
+    grib_accessor_class_element.cpp
+    grib_accessor_class_evaluate.cpp
+    grib_accessor_class_g1area.cpp
+    grib_accessor_class_g1date.cpp
+    grib_accessor_class_g1monthlydate.cpp
+    grib_accessor_class_library_version.cpp
+    grib_accessor_class_when.cpp
+    grib_accessor_class_g1verificationdate.cpp
+    grib_accessor_class_g1day_of_the_year_date.cpp
+    grib_accessor_class_g1_half_byte_codeflag.cpp
+    grib_accessor_class_g1forecastmonth.cpp
+    grib_accessor_class_g1step_range.cpp
+    grib_accessor_class_g2step_range.cpp
+    grib_accessor_class_data_g22order_packing.cpp
+    grib_accessor_class_mars_step.cpp
+    grib_accessor_class_message_copy.cpp
+    grib_accessor_class_dictionary.cpp
+    grib_accessor_class_latlon_increment.cpp
+    grib_accessor_class_g2date.cpp
+    grib_accessor_class_g2level.cpp
+    grib_accessor_class_g2end_step.cpp
+    grib_accessor_class_g2latlon.cpp
+    grib_accessor_class_g2lon.cpp
+    grib_accessor_class_global_gaussian.cpp
+    grib_accessor_class_gaussian_grid_name.cpp
+    grib_accessor_class_gen.cpp
+    grib_accessor_class_getenv.cpp
+    grib_accessor_class_gts_header.cpp
+    grib_accessor_class_ifs_param.cpp
+    grib_accessor_class_julian_day.cpp
+    grib_accessor_class_julian_date.cpp
+    grib_accessor_class_closest_date.cpp
+    grib_accessor_class_latlonvalues.cpp
+    grib_accessor_class_latitudes.cpp
+    grib_accessor_class_longitudes.cpp
+    grib_accessor_class_missing.cpp
+    grib_accessor_class_offset_file.cpp
+    grib_accessor_class_scale.cpp
+    grib_accessor_class_from_scale_factor_scaled_value.cpp
+    grib_accessor_class_times.cpp
+    grib_accessor_class_forward.cpp
+    grib_accessor_class_g2bitmap_present.cpp
+    grib_accessor_class_ibmfloat.cpp
+    grib_accessor_class_ieeefloat.cpp
+    grib_accessor_class_constant.cpp
+    grib_accessor_class_iterator.cpp
+    grib_accessor_class_message.cpp
+    grib_accessor_class_nearest.cpp
+    grib_accessor_class_box.cpp
+    grib_accessor_class_ksec1expver.cpp
+    grib_accessor_class_laplacian.cpp
+    grib_accessor_class_label.cpp
+    grib_accessor_class_long.cpp
+    grib_accessor_class_lookup.cpp
+    grib_accessor_class_octahedral_gaussian.cpp
+    grib_accessor_class_octet_number.cpp
+    grib_accessor_class_headers_only.cpp
+    grib_accessor_class_padding.cpp
+    grib_accessor_class_pad.cpp
+    grib_accessor_class_padto.cpp
+    grib_accessor_class_padtoeven.cpp
+    grib_accessor_class_padtomultiple.cpp
+    grib_accessor_class_section_padding.cpp
+    grib_accessor_class_section_pointer.cpp
+    grib_accessor_class_position.cpp
+    grib_accessor_class_signed.cpp
+    grib_accessor_class_signed_bits.cpp
+    grib_accessor_class_section.cpp
+    grib_accessor_class_step_in_units.cpp
+    grib_accessor_class_section_length.cpp
+    grib_accessor_class_g1_message_length.cpp
+    grib_accessor_class_g1_section4_length.cpp
+    grib_accessor_class_size.cpp
+    grib_accessor_class_rdbtime_guess_date.cpp
+    grib_accessor_class_scale_values.cpp
+    grib_accessor_class_offset_values.cpp
+    grib_accessor_class_sprintf.cpp
+    grib_accessor_class_round.cpp
+    grib_accessor_class_spectral_truncation.cpp
+    grib_accessor_class_time.cpp
+    grib_accessor_class_transient.cpp
+    grib_accessor_class_trim.cpp
+    grib_accessor_class_transient_darray.cpp
+    grib_accessor_class_values.cpp
+    grib_accessor_class_simple_packing_error.cpp
+    grib_accessor_class_data_simple_packing.cpp
+    grib_accessor_class_count_missing.cpp
+    grib_accessor_class_data_sh_packed.cpp
+    grib_accessor_class_data_sh_unpacked.cpp
+    grib_accessor_class_number_of_values_data_raw_packing.cpp
+    grib_accessor_class_data_g1simple_packing.cpp
+    grib_accessor_class_data_g1shsimple_packing.cpp
+    grib_accessor_class_data_shsimple_packing.cpp
+    grib_accessor_class_data_dummy_field.cpp
+    grib_2order_packer_simple.cpp
+    grib_accessor_class_variable.cpp
+    grib_accessor_class_second_order_bits_per_value.cpp
+    grib_accessor_class_data_g2simple_packing.cpp
+    grib_accessor_class_data_g2simple_packing_with_preprocessing.cpp
+    grib_accessor_class_data_g2shsimple_packing.cpp
+    grib_accessor_class_data_g2complex_packing.cpp
+    grib_accessor_class_data_2order_packing.cpp
+    grib_accessor_class_data_g1second_order_row_by_row_packing.cpp
+    grib_accessor_class_data_g1second_order_constant_width_packing.cpp
+    grib_accessor_class_data_g1second_order_general_packing.cpp
+    grib_accessor_class_data_g1second_order_general_extended_packing.cpp
+    grib_accessor_class_g2grid.cpp
+    grib_accessor_class_unexpanded_descriptors.cpp
+    grib_accessor_class_expanded_descriptors.cpp
+    grib_accessor_class_bufrdc_expanded_descriptors.cpp
+    grib_accessor_class_data_apply_bitmap.cpp
+    grib_accessor_class_data_apply_boustrophedonic.cpp
+    grib_accessor_class_data_apply_boustrophedonic_bitmap.cpp
+    grib_accessor_class_data_secondary_bitmap.cpp
+    grib_accessor_class_data_g1secondary_bitmap.cpp
+    grib_accessor_class_data_g2secondary_bitmap.cpp
+    grib_accessor_class_data_jpeg2000_packing.cpp
+    grib_accessor_class_data_png_packing.cpp
+    grib_accessor_class_data_ccsds_packing.cpp
+    grib_accessor_class_data_raw_packing.cpp
+    grib_accessor_class_data_complex_packing.cpp
+    grib_accessor_class_data_g1complex_packing.cpp
+    grib_accessor_class_gds_not_present_bitmap.cpp
+    grib_accessor_class_data_apply_gdsnotpresent.cpp
+    grib_accessor_class_gds_is_present.cpp
+    grib_accessor_class_select_step_template.cpp
+    grib_accessor_class_local_definition.cpp
+    grib_accessor_class_g2_eps.cpp
+    grib_accessor_class_g2_aerosol.cpp
+    grib_accessor_class_g2_chemical.cpp
+    grib_accessor_class_g2_mars_labeling.cpp
+    grib_accessor_class_md5.cpp
+    grib_accessor_class_proj_string.cpp
+    grib_jasper_encoding.cpp
+    grib_openjpeg_encoding.cpp
+    action_class_set_missing.cpp
+    grib_accessor_class_number_of_points.cpp
+    grib_accessor_class_suppressed.cpp
+    grib_index.cpp
+    grib_accessor_class_number_of_points_gaussian.cpp
+    grib_accessor_class_number_of_values.cpp
+    grib_accessor_class_number_of_coded_values.cpp
+    grib_accessor_class_g1number_of_coded_values_sh_complex.cpp
+    grib_accessor_class_g1number_of_coded_values_sh_simple.cpp
+    grib_accessor_class_dirty.cpp
+    grib_accessor_class_statistics.cpp
+    grib_accessor_class_statistics_spectral.cpp
+    grib_accessor_class_unsigned.cpp
+    grib_accessor_class_unsigned_bits.cpp
+    grib_accessor_class_raw.cpp
+    grib_accessor_class_bufr_simple_thinning.cpp
+    grib_accessor_class_bufr_extract_subsets.cpp
+    grib_accessor_class_bufr_extract_area_subsets.cpp
+    grib_accessor_class_bufr_extract_datetime_subsets.cpp
+    grib_accessor_class_spd.cpp
+    grib_accessor_class_sum.cpp
+    grib_accessor_class_to_integer.cpp
+    grib_accessor_class_to_double.cpp
+    grib_accessor_class_to_string.cpp
+    grib_accessor_class_sexagesimal2decimal.cpp
+    grib_accessor_class_vector.cpp
+    grib_accessor_class_long_vector.cpp
+    grib_gaussian_reduced.cpp
+    grib_accessor_class_abstract_vector.cpp
+    grib_accessor_class_abstract_long_vector.cpp
+    grib_loader_from_handle.cpp
+    grib_bits.cpp
+    grib_timer.cpp
+    grib_ibmfloat.cpp
+    grib_ieeefloat.cpp
+    grib_accessor_class_reference_value_error.cpp
+    grib_memory.cpp
+    grib_buffer.cpp
+    grib_dumper.cpp
+    grib_dumper_class_serialize.cpp
+    grib_dumper_class_debug.cpp
+    grib_dumper_class_default.cpp
+    grib_dumper_class_keys.cpp
+    grib_dumper_class_bufr_encode_C.cpp
+    grib_dumper_class_bufr_encode_filter.cpp
+    grib_dumper_class_bufr_encode_fortran.cpp
+    grib_dumper_class_bufr_encode_python.cpp
+    grib_dumper_class_bufr_decode_C.cpp
+    grib_dumper_class_bufr_decode_filter.cpp
+    grib_dumper_class_bufr_decode_fortran.cpp
+    grib_dumper_class_bufr_decode_python.cpp
+    grib_dumper_class_bufr_simple.cpp
+    grib_dumper_class_json.cpp
+    grib_dumper_class_grib_encode_C.cpp
+    grib_dumper_class_wmo.cpp
+    grib_dumper_class.cpp
+    grib_context.cpp
+    grib_date.cpp
+    grib_fieldset.cpp
+    grib_filepool.cpp
+    grib_geography.cpp
+    grib_handle.cpp
+    grib_header_compute.cpp
+    grib_hash_keys.cpp
+    grib_io.cpp
+    grib_trie.cpp
+    grib_trie_with_rank.cpp
+    grib_itrie.cpp
+    grib_rules.cpp
+    grib_keys_iterator.cpp
+    bufr_keys_iterator.cpp
+    grib_parse_utils.cpp
+    grib_query.cpp
+    grib_scaling.cpp
+    grib_templates.cpp
+    grib_dependency.cpp
+    grib_value.cpp
+    grib_errors.cpp
+    grib_expression_class_binop.cpp
+    grib_expression_class_logical_and.cpp
+    grib_expression_class_logical_or.cpp
+    grib_expression_class_is_in_dict.cpp
+    grib_expression_class_true.cpp
+    grib_expression_class_string_compare.cpp
+    grib_expression_class_unop.cpp
+    grib_expression_class_functor.cpp
+    grib_expression_class_accessor.cpp
+    grib_expression_class_is_in_list.cpp
+    grib_expression_class_is_integer.cpp
+    grib_expression_class_length.cpp
+    grib_expression_class_long.cpp
+    grib_expression_class_double.cpp
+    grib_expression_class_string.cpp
+    grib_expression_class_sub_string.cpp
+    grib_box.cpp
+    grib_box_class.cpp
+    grib_box_class_gen.cpp
+    grib_nearest.cpp
+    grib_nearest_class.cpp
+    grib_nearest_class_gen.cpp
+    grib_nearest_class_regular.cpp
+    grib_nearest_class_reduced.cpp
+    grib_nearest_class_latlon_reduced.cpp
+    grib_nearest_class_sh.cpp
+    grib_nearest_class_lambert_conformal.cpp
+    grib_nearest_class_lambert_azimuthal_equal_area.cpp
+    grib_nearest_class_mercator.cpp
+    grib_nearest_class_polar_stereographic.cpp
+    grib_nearest_class_space_view.cpp
+    grib_iterator_class_polar_stereographic.cpp
+    grib_iterator_class_lambert_azimuthal_equal_area.cpp
+    grib_iterator_class_lambert_conformal.cpp
+    grib_iterator_class_mercator.cpp
+    grib_iterator.cpp
+    grib_iterator_class.cpp
+    grib_iterator_class_gaussian.cpp
+    grib_iterator_class_gaussian_reduced.cpp
+    grib_iterator_class_latlon_reduced.cpp
+    grib_iterator_class_gen.cpp
+    grib_iterator_class_latlon.cpp
+    grib_iterator_class_regular.cpp
+    grib_iterator_class_space_view.cpp
+    grib_expression.cpp
+    codes_util.cpp
+    grib_util.cpp
+    bufr_util.cpp
+    string_util.cpp
+    functions.cpp
     grib_accessor_class.h
     grib_accessor_factory.h
     grib_api_internal.h
@@ -376,43 +376,43 @@ list( APPEND eccodes_src_files
     grib_nearest_factory.h
     grib_yacc.h
     md5.h
-    md5.c
-    grib_accessor_class_int16.c
-    grib_accessor_class_int16_little_endian.c
-    grib_accessor_class_int32.c
-    grib_accessor_class_int32_little_endian.c
-    grib_accessor_class_int64.c
-    grib_accessor_class_int64_little_endian.c
-    grib_accessor_class_int8.c
-    grib_accessor_class_uint16.c
-    grib_accessor_class_uint16_little_endian.c
-    grib_accessor_class_uint32.c
-    grib_accessor_class_uint32_little_endian.c
-    grib_accessor_class_uint64.c
-    grib_accessor_class_uint64_little_endian.c
-    grib_accessor_class_uint8.c
-    grib_accessor_class_blob.c
-    grib_optimize_decimal_factor.c
-    grib_accessor_class_data_g2bifourier_packing.c
-    grib_accessor_class_data_run_length_packing.c
+    md5.cpp
+    grib_accessor_class_int16.cpp
+    grib_accessor_class_int16_little_endian.cpp
+    grib_accessor_class_int32.cpp
+    grib_accessor_class_int32_little_endian.cpp
+    grib_accessor_class_int64.cpp
+    grib_accessor_class_int64_little_endian.cpp
+    grib_accessor_class_int8.cpp
+    grib_accessor_class_uint16.cpp
+    grib_accessor_class_uint16_little_endian.cpp
+    grib_accessor_class_uint32.cpp
+    grib_accessor_class_uint32_little_endian.cpp
+    grib_accessor_class_uint64.cpp
+    grib_accessor_class_uint64_little_endian.cpp
+    grib_accessor_class_uint8.cpp
+    grib_accessor_class_blob.cpp
+    grib_optimize_decimal_factor.cpp
+    grib_accessor_class_data_g2bifourier_packing.cpp
+    grib_accessor_class_data_run_length_packing.cpp
     eccodes_windef.h
     # We ship our own generated lex/yacc C files
-    grib_yacc.c  grib_lex.c )
+    grib_yacc.cpp  grib_lex.cpp )
 
 list( APPEND eccodes_extra_src_files
-    grib_bits_fast_big_endian.c grib_bits_any_endian.c
-    grib_bits_fast_big_endian_vector.c grib_bits_any_endian_vector.c
-    grib_bits_fast_big_endian_simple.c grib_bits_any_endian_simple.c
-    grib_bits_fast_big_endian_omp.c grib_bits_any_endian_omp.c
-    encode_double_array.c
-    grib_bits_ibmpow.c
-    grib_bits_ibmpow_opt.c
-    minmax_val.c )
+    grib_bits_fast_big_endian.cpp grib_bits_any_endian.cpp
+    grib_bits_fast_big_endian_vector.cpp grib_bits_any_endian_vector.cpp
+    grib_bits_fast_big_endian_simple.cpp grib_bits_any_endian_simple.cpp
+    grib_bits_fast_big_endian_omp.cpp grib_bits_any_endian_omp.cpp
+    encode_double_array.cpp
+    grib_bits_ibmpow.cpp
+    grib_bits_ibmpow_opt.cpp
+    minmax_val.cpp )
 
 if(UNIX)
     ecbuild_get_date(eccodes_BUILD_DATE)
 endif()
-configure_file( grib_api_version.c.in grib_api_version.c @ONLY )
+configure_file( grib_api_version.cpp.in grib_api_version.cpp @ONLY )
 configure_file( eccodes_version.h.in eccodes_version.h @ONLY )
 
 # We ship our own generated lex/yacc C files
@@ -423,24 +423,15 @@ configure_file( eccodes_version.h.in eccodes_version.h @ONLY )
 #                    LEX_FLAGS  " "
 #                    BISON_FLAGS "-y"
 #                    YACC_FLAGS  "-y"
-#                    DEPENDANT action.c )
+#                    DEPENDANT action.cpp )
 
 if( HAVE_MEMFS )
     list(APPEND ECCODES_EXTRA_LIBRARIES eccodes_memfs)
 endif()
 
-if( HAVE_EXPERIMENTAL_BUILD_WITH_CXX )
-    foreach( _src ${eccodes_src_files} )
-        get_filename_component( _ext ${_src} EXT )
-        if( _ext STREQUAL ".c" )
-            set_source_files_properties( ${_src} PROPERTIES LANGUAGE CXX )
-        endif()
-    endforeach()
-endif()
-
 ecbuild_add_library( TARGET    eccodes
-                     SOURCES   ${CMAKE_CURRENT_BINARY_DIR}/grib_api_version.c
-                              # griby.c gribl.c
+                     SOURCES   ${CMAKE_CURRENT_BINARY_DIR}/grib_api_version.cpp
+                              # griby.cpp gribl.cpp
                               ${eccodes_src_files}
                      #PRIVATE_LIBS      ${ECCODES_EXTRA_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ${CMATH_LIBRARIES}
                      PRIVATE_INCLUDES "${AEC_INCLUDE_DIRS}" "${PNG_INCLUDE_DIRS}"

src/errors.pl

@@ -161,8 +161,8 @@ sub write_F90_errors {
 sub write_C_errors {
     my ($public,$internal) = @_;
 
-    open(C,">grib_errors.c.new") or die "grib_errors.c.new: $!";
-    open(IN,"<grib_errors.c.in") or die "grib_errors.c.in: $!";
+    open(C,">grib_errors.cpp.new") or die "grib_errors.cpp.new: $!";
+    open(IN,"<grib_errors.cpp.in") or die "grib_errors.cpp.in: $!";
 
     foreach (<IN>) {
         if (/^!ERRORS/) {

src/extrules.am

@@ -1,9 +1,9 @@
 .grib.c:;   ./grib2c.pl $<
 # .req.grib:;  mars $<
 
-grib_errors.c : grib_errors.txt errors.pl
+grib_errors.cpp : grib_errors.txt errors.pl
 	./errors.pl
-	cmp -s grib_errors.c grib_errors.c.new || (cp grib_errors.c.new grib_errors.c)
+	cmp -s grib_errors.cpp grib_errors.cpp.new || (cp grib_errors.cpp.new grib_errors.cpp)
 	cmp -s grib_api.h grib_api.h.new       || (cp grib_api.h.new grib_api.h)
 	cmp -s eccodes.h eccodes.h.new         || (mv eccodes.h.new eccodes.h)
 	cmp -s ../fortran/grib_api_constants.h grib_api_constants.h.new || (mv grib_api_constants.h.new ../fortran/grib_api_constants.h)
@@ -20,25 +20,25 @@ templates:
 	-chmod +w grib_templates.h
 	./grib2c.pl ../templates/*.grib
 
-grib_lex.c : gribl.l grib_yacc.h
+grib_lex.cpp : gribl.l grib_yacc.h
 	$(LEX) gribl.l
-	sed 's/yy/grib_yy/g' < $(LEX_OUTPUT_ROOT).c | sed 's/static void grib_yyunput/void grib_yyunput/' > grib_lex1.c
-	sed 's/fgetc/getc/g' < grib_lex1.c > grib_lex.c
-	rm -f grib_lex1.c
-	rm -f $(LEX_OUTPUT_ROOT).c
+	sed 's/yy/grib_yy/g' < $(LEX_OUTPUT_ROOT).cpp | sed 's/static void grib_yyunput/void grib_yyunput/' > grib_lex1.cpp
+	sed 's/fgetc/getc/g' < grib_lex1.cpp > grib_lex.cpp
+	rm -f grib_lex1.cpp
+	rm -f $(LEX_OUTPUT_ROOT).cpp
 
-grib_yacc.h grib_yacc.c : griby.y
+grib_yacc.h grib_yacc.cpp : griby.y
 	$(YACC) -d griby.y
-	sed 's/yy/grib_yy/g' < y.tab.c > grib_yacc1.c
-	sed 's/fgetc/getc/g' < grib_yacc1.c > grib_yacc.c
-	rm -f grib_yacc1.c
+	sed 's/yy/grib_yy/g' < y.tab.c > grib_yacc1.cpp
+	sed 's/fgetc/getc/g' < grib_yacc1.cpp > grib_yacc.cpp
+	rm -f grib_yacc1.cpp
 	sed 's/yy/grib_yy/g' < y.tab.h > grib_yacc.h
 	rm -f y.tab.c y.tab.h
 
 hash_keys:
 	./make_hash_keys.sh
 
-grib_accessor_classes_hash.c:
+grib_accessor_classes_hash.cpp:
 	./make_accessor_class_hash.sh
 
 SUFFIXES= .conf .grib .req .txt

src/grib_accessor_class.cpp

@@ -10,7 +10,7 @@
 
 
 #include "grib_api_internal.h"
-#include "grib_accessor_classes_hash.c"
+#include "grib_accessor_classes_hash.cpp"
 /*     grib level     */