hash_map 问题？？？

[herman011]

struct reads_unique_cDNA
{
reads_unique_cDNA(const unsigned int ci,const unsigned int co,const unsigned short mm,const bool st,const bool un) :
cDNA_id(ci),cDNA_offset(co),mismatch(mm),strand(st),unique(un){}

unsigned int cDNA_id;
unsigned int cDNA_offset;
unsigned int reads_id;
unsigned mismatch :3;
unsigned strand :1;
unsigned unique :1;
};


scan_spliced(hash_map<unsigned int, reads_unique_cDNA> &temp)
{}

hash_map<unsigned int, reads_unique_cDNA> reads_spliced;


scan_spliced(reads_spliced);




不加 scan_spliced(reads_spliced); 编译通过， 一加这一句 就不行。。。



In instantiation of `std::pair<const unsigned int, cDNA_unique_map>':

544 C:\Dev-Cpp\include\c++\3.4.2\bits\stl_function.h instantiated from `std::_Select1st<std::pair<const unsigned int, cDNA_unique_map> >'

[taodm]

找本《stl源码剖析》看看吧。
另外，直接用map吧，一般用hash_map的都是滥用。

[herman011]

怎么 一传到函数里 就不行

[K行天下]

[Quote=引用 1 楼 taodm 的回复:]
找本《stl源码剖析》看看吧。
另外，直接用map吧，一般用hash_map的都是滥用。
[/Quote]
up

[donwmufromdying]

scan_spliced(hash_map <unsigned int, reads_unique_cDNA> &temp)
{}
这个函数怎么没有返回的

你试试
void scan_spliced(hash_map <unsigned int, reads_unique_cDNA> &temp)
{}

[herman011]

忘记 写上 void 了

程序 本来是写了的。。。。。


不关这个事。。。。

[donwmufromdying]

其他没发现有问题
要么最好
typedef hash_map <unsigned int, reads_unique_cDNA> MYMAP;

void scan_spliced(MYMAP& temp)
{}

MYMAP reads_spliced;

scan_spliced(reads_spliced);

[donwmufromdying]

我在我这边的环境测试,能通过!
我的solaris+sunstudio

[Vitin]

应该是 reads_unique_cDNA 缺少一个默认构造函数。hash_map 的某些功能中会用到。
象这样：

struct reads_unique_cDNA 
{ 
    reads_unique_cDNA(const unsigned int ci,const unsigned int co,const unsigned short mm,
        const bool st,const bool un) : 
        cDNA_id(ci),cDNA_offset(co),mismatch(mm),strand(st),unique(un){} 

    reads_unique_cDNA() { /* ... */ } // default constructor

unsigned int cDNA_id;                        
unsigned int cDNA_offset; 
unsigned int reads_id; 
unsigned mismatch :3; 
unsigned strand :1; 
unsigned unique :1; 
};