在linux下面使用Jsoncpp,在编译时添加了头文件搜索路径-Ixxxx/json ，导致很多错误，如下： In file included from /usr/include/x86_64-li_in file included from /usr/include/cgal/io/file_he

作者：我家自动化 | 2024-03-06 19:37:24

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in file included from /usr/include/cgal/io/file_header_off.h:31, from /usr/i

在linux下面使用Jsoncpp,在编译时添加了头文件搜索路径-Ixxxx/json ，导致很多错误，如下：
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/c++config.h:482:0,
from /usr/include/c++/5/iostream:38,
from JsonProcess.cpp:1:
/usr/include/x86_64-linux-gnu/c++/5/bits/os_defines.h:44:19: error: missing binary operator before token “(”
#if __GLIBC_PREREQ(2,15) && defined(_GNU_SOURCE)
．．．．．
．．．．．
In file included from /usr/include/libio.h:56:0,
from /usr/include/stdio.h:74,
from JsonProcess.cpp:2:
/usr/include/x86_64-linux-gnu/sys/cdefs.h:41:20: error: missing binary operator before token “(”

if __GNUC_PREREQ (4, 6) && !defined _LIBC

．．．．
/usr/include/c++/5/cwchar:208:11: error: ‘::wmemchr’ has not been declared
using ::wmemchr;
．．．．
解决方式如下：

编译时json库的头文件搜索路径必须选择json.h的上一级目录，不能使头文件所在目录，在引用json.h的地方加上"json/json.h"
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原文链接：https://blog.csdn.net/yubing841026/article/details/76914662

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