开始定义
结构体如: typedef struct student
{
id; char name[20];
char sex[20];
char birthday[50];
score; char description[100];
void* pWnd;
}STUDENT,*PSTUDENT;
定义
个deque来保存这个结构体对象 deque<STUDENT>m_vecst; 现在我有个结构体对象
想查找是否在这个deque中我开始是这样做: STUDENT TT;
deque<STUDENT>::iterator iter = find(m_vecst.begin
,m_vecst.end,TT); 
( iter != m_vecst.end) {
STUDENT DD = (STUDENT)(*iter);
char* name = DD.name;
}
但是
编译不过去报
为: **********\
\algorithm(43) : error C2678: binary '
' : no operator 
d which takes a left-hand operand of type 'struct student' (or there is no acceptable conversion) **********.cpp(549) : see reference to function template instantiation '
std::deque<struct student, std::allocator<struct student> >::iter ator __cdecl std::find(
std::deque<struct student, std::allocator<struct student> >::iterator, std::deque<struct student, std::allocator<struct student> >::iterator,const struct student &)' being compiled Error executing cl.exe.
的所有这个
主要是我们没有定义在查找结构体STUDENT时不知道如何样判断结构体是相等.因此我们必须重载结构体符号
.如下: typedef struct student
{
id; char name[20];
char sex[20];
char birthday[50];
score; char description[100];
void* pWnd;
bool operator
(const student &A) const {
(id A.id) 
true; false; }
}STUDENT,*PSTUDENT;
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