错误c2244 dlib贝叶斯网络示例代码

Question

我正在尝试在visual studio 2013中运行这里提供的示例代码，所有的库都已经设置好了，但是我在http://dlib.net/bayes_net_ex.cpp.html和element const方法上得到了两个c2244错误。

这是错误报告

1>------ Build started: Project: bayesian, Configuration: Debug Win32 ------
1>  stdafx.cpp
1>  bayesian.cpp
1>c:\program files (x86)\microsoft visual studio 12.0\vc\include\dlib\binary_search_tree\binary_search_tree_kernel_c.h(187): error C2244: 'dlib::binary_search_tree_kernel_c<bst_base>::element' : unable to match function definition to an existing declaration
1>          definition
1>          'const dlib::map_pair<bst_base::domain_type,bst_base::range_type> &dlib::binary_search_tree_kernel_c<bst_base>::element(void) const'
1>          existing declarations
1>          'dlib::map_pair<binary_search_tree_kernel_c<bst_base>::::domain_type,binary_search_tree_kernel_c<bst_base>::::range_type> &dlib::binary_search_tree_kernel_c<bst_base>::element(void)'
1>          'const dlib::map_pair<binary_search_tree_kernel_c<bst_base>::::domain_type,binary_search_tree_kernel_c<bst_base>::::range_type> &dlib::binary_search_tree_kernel_c<bst_base>::element(void) const'
1>c:\program files (x86)\microsoft visual studio 12.0\vc\include\dlib\binary_search_tree\binary_search_tree_kernel_c.h(205): error C2244: 'dlib::binary_search_tree_kernel_c<bst_base>::element' : unable to match function definition to an existing declaration
1>          definition
1>          'dlib::map_pair<bst_base::domain_type,bst_base::range_type> &dlib::binary_search_tree_kernel_c<bst_base>::element(void)'
1>          existing declarations
1>          'dlib::map_pair<binary_search_tree_kernel_c<bst_base>::::domain_type,binary_search_tree_kernel_c<bst_base>::::range_type> &dlib::binary_search_tree_kernel_c<bst_base>::element(void)'   
1>          'const dlib::map_pair<binary_search_tree_kernel_c<bst_base>::::domain_type,binary_search_tree_kernel_c<bst_base>::::range_type> &dlib::binary_search_tree_kernel_c<bst_base>::element(void) const'
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

我看不出这里出了什么问题。

Answer 1

这是visual studio 2013中的一个错误。您可以通过将binary_search_tree_kernel_c.h中两个元素()函数的定义从类外部移动到类内部来解决这个问题。