c++ - gcc模板错误

Question

为什么在这段代码的第一行:

template <typename VectorType>
std::string repr_vector_dynamic(const VectorType* vect)
{
    std::stringstream strs;
    strs << "(";
    for (int i = 0; i < vect->size(); ++i) {
        if (0 != i) {
            strs << ", ";
        }
        strs << (*vect)[i];
    }
    strs << ")";
    return strs.str();
}

我总是在第一行遇到这些错误:(MinGW gcc 4.5)

expected ';' before 'template'

expected primary-expression before 'template'

谢谢

稍后编辑:这是我从 eclipse 获得的命令行/日志:

g++ -II:\proj\bp\PyCML -IC:\PF\Python26\include -II:\proj\bp/include -O3 -Wall -c -fmessage-length=0 -oPyCML\cml.o ..\PyCML\cml.cpp
In file included from I:\proj\bp/include/boost/python/object/make_instance.hpp:9:0,
             from I:\proj\bp/include/boost/python/object/make_ptr_instance.hpp:8,
             from I:\proj\bp/include/boost/python/to_python_indirect.hpp:11,
             from I:\proj\bp/include/boost/python/converter/arg_to_python.hpp:10,
             from I:\proj\bp/include/boost/python/call.hpp:15,
             from I:\proj\bp/include/boost/python/object_core.hpp:14,
             from I:\proj\bp/include/boost/python/args.hpp:25,
             from I:\proj\bp/include/boost/python.hpp:11,
             from ..\PyCML\cml.cpp:11:
I:\proj\bp/include/boost/python/object/instance.hpp:14:36: warning: type attributes ignored after type is already defined
In file included from ..\PyCML\cml.cpp:28:0:
I:\proj\bp\PyCML/PyCMl/vector.h: In function 'void init_module_PyCML()':
I:\proj\bp\PyCML/PyCMl/vector.h:22:1: error: expected primary-expression before 'template'
I:\proj\bp\PyCML/PyCMl/vector.h:22:1: error: expected ';' before 'template'
..\PyCML\cml.cpp:58:1: error: expected '}' at end of input

Answer 1

正如其他人所建议的那样，它是 在 template 之前发生的事情缺少 ; 的声明.

看看编译器看到了什么，因此:

g++ -E <yourfile>.cpp | less