update build system and netcdf.cpp

CMakeLists.txt

@@ -4,7 +4,12 @@ cmake_minimum_required(VERSION 3.15.2)
 project(NETCDF_CXX)
 
 message(STATUS "Platform: " ${CMAKE_HOST_SYSTEM_NAME})
-set(CMAKE_INSTALL_PREFIX "D:/Library")
+if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Windows")
+    #set(CMAKE_C_COMPILER gcc)
+    #set(CMAKE_CXX_COMPILER g++)
+    set(CMAKE_INSTALL_PREFIX D:/Library)
+endif()
+message(STATUS "Install prefix: " ${CMAKE_INSTALL_PREFIX})
 
 # 添加源文件地址
 add_subdirectory(src/)

README.md

@@ -1,4 +1,4 @@
-# netcdfcxx_win
+# netcdfcxx_legacy
 
 #### 介绍
 一个windows下netcdf c++接口的编译项目，注意使用的是4.2版本的老接口。

config.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+cmd=${1}
+package=netcdfcxx_legacy
+address=/opt
+
+if [[ ${cmd} == "configure" && ! -d "build/" ]]; then
+	mkdir build && cd build && cmake .. -DCMAKE_INSTALL_PREFIX=${address}/stow/${package} -DCMAKE_BUILD_TYPE=Release
+elif [[ ${cmd} == "configure" ]]; then
+	cd build && rm -rf * && cmake .. -DCMAKE_INSTALL_PREFIX=${address}/stow/${package} -DCMAKE_BUILD_TYPE=Release
+elif [[ ${cmd} == "build" ]]; then
+	cd build && make
+elif [[ ${cmd} == "install" ]]; then
+	cd build && sudo make install
+	sudo stow --dir=${address}/stow --target=${address} ${package}
+fi

src/CMakeLists.txt

@@ -1,8 +1,8 @@
 # 设定源文件文件夹
 aux_source_directory(lib/ NETCDF_SRC)
 # 设置netcdf c接口的库文件地址
-set(LIB_NETCDF_INC C:/Program\ Files/netCDF\ 4.8.0/include)
+set(LIB_NETCDF_INC /opt/homebrew/include)
-set(LIB_NETCDF_LIB C:/Program\ Files/netCDF\ 4.8.0/lib)
+set(LIB_NETCDF_LIB /opt/homebrew/lib)
 # netcdf安装后的动态库与静态库的地址不一样 需要手动在cmake生成的VS工程内添加下面的库地址
 # 方法如下：gctl->属性->链接器->附件库目录（选择编辑，并选择netcdf的可执行文件地址）
 #set(LIB_NETCDF_BIN C:/Program\ Files/netCDF\ 4.8.0/bin)
@@ -17,24 +17,24 @@ set(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/lib)
 # 以下部分为库的编译
 # 注意目标名必须唯一 所以不能直接生成相同名称的动态库与静态库
 # 注意此处不必为目标名称添加lib前缀和相应后缀，cmake会自行添加
-add_library(netcdf_c++ SHARED ${NETCDF_SRC})
+add_library(netcdfcxx_legacy SHARED ${NETCDF_SRC})
 # 首先添加静态库的生成命令
-add_library(netcdf_c++_static STATIC ${NETCDF_SRC})
+add_library(netcdfcxx_legacy_static STATIC ${NETCDF_SRC})
 # 设置静态库的输出名称从而获得与动态库名称相同的静态库
-set_target_properties(netcdf_c++_static PROPERTIES OUTPUT_NAME "netcdf_c++")
+set_target_properties(netcdfcxx_legacy_static PROPERTIES OUTPUT_NAME "netcdfcxx_legacy")
 # 设置输出目标属性以同时输出动态库与静态库
-set_target_properties(netcdf_c++ PROPERTIES CLEAN_DIRECT_OUTPUT 1)
+set_target_properties(netcdfcxx_legacy PROPERTIES CLEAN_DIRECT_OUTPUT 1)
-set_target_properties(netcdf_c++_static PROPERTIES CLEAN_DIRECT_OUTPUT 1)
+set_target_properties(netcdfcxx_legacy_static PROPERTIES CLEAN_DIRECT_OUTPUT 1)
 # 设置动态库的版本号
-set_target_properties(netcdf_c++ PROPERTIES VERSION 1.0 SOVERSION 1.0)
+set_target_properties(netcdfcxx_legacy PROPERTIES VERSION 1.0 SOVERSION 1.0)
 
 find_library(NETCDF_LIBRARY netcdf ${LIB_NETCDF_LIB})
-target_link_libraries(netcdf_c++ PUBLIC ${NETCDF_LIBRARY})
+target_link_libraries(netcdfcxx_legacy PUBLIC ${NETCDF_LIBRARY})
-target_link_libraries(netcdf_c++_static ${NETCDF_LIBRARY})
+target_link_libraries(netcdfcxx_legacy_static ${NETCDF_LIBRARY})
 
 # 库的安装命令
-install(TARGETS netcdf_c++ DESTINATION lib)
+install(TARGETS netcdfcxx_legacy DESTINATION lib)
-install(TARGETS netcdf_c++_static DESTINATION lib)
+install(TARGETS netcdfcxx_legacy_static DESTINATION lib)
 # 头文件安装命令
 install(FILES lib/netcdfcpp.h DESTINATION include)
 install(FILES lib/ncvalues.h DESTINATION include)
@@ -48,9 +48,9 @@ macro(add_sample name)
 	# 添加可执行文件 命令行
 	add_executable(${name} example/${name}.cpp)
 	# 为安装文件添加动态库的搜索地址 在Windows下并没有什么用 直接忽略
-	set_target_properties(${name} PROPERTIES INSTALL_RPATH D:/Library/lib)
+	set_target_properties(${name} PROPERTIES INSTALL_RPATH /opt/lib)
 	# 链接动态库
-	target_link_libraries(${name} PUBLIC netcdf_c++)
+	target_link_libraries(${name} PUBLIC netcdfcxx_legacy)
 endmacro()
 
 add_sample(pres_temp_4D_rd)

src/lib/netcdf.cpp

@@ -648,6 +648,7 @@ long* NcVar::edges( void ) const	// edge lengths (dimension sizes)
 
 int NcVar::num_atts( void ) const // handles variable and global atts
 {
+    /*
     int natt = 0;
     if (the_file->is_valid())
       if (the_id == ncGlobal)
@@ -657,6 +658,21 @@ int NcVar::num_atts( void ) const // handles variable and global atts
 			 nc_inq_varnatts(the_file->id(), the_id, &natt)
 			 );
     return natt;
+    */
+
+    int natt = 0;
+    if (the_file->is_valid())
+    {
+      if (the_id == ncGlobal)
+      {
+        natt = the_file->num_atts();
+      }
+      else
+      {
+         NcError::set_err(nc_inq_varnatts(the_file->id(), the_id, &natt));
+      }
+    }
+    return natt;
 }
 
 NcAtt* NcVar::get_att( NcToken aname ) const