错误C2146：语法错误：在按功能传递地图时，在标识符mType之前缺少'，'

Question

When I declare the below function:

#include <vector>
#include <map>
void setTypeByBanknote(tsBanknotes &tsBanknotes, std::map<char, std::vector<byte>> &mType);

My compiler shows the following error:

error C2146: syntax error : missing ',' before identifier mType

But if I do the following:

#include <vector>
#include <map>
typedef std::vector<byte> tvByteVector;
void setTypeByBanknote(tsBanknotes &tsBanknotes, std::map<char, tvByteVector &mType);

My compiler does not show any error and compiles correctly

Is there any way to pass this map as an argument without using typedef ?

I'm using visual 6.0 as IDE , I know it is very old. Is the problem because of the old IDE ? I do include vector and map libraries.

Thanks in advance!

Answer 1

std::map<char, std::vector<byte> >
                               ^^^^

You need a space between two > s like > > . Otherwise VS 6.0, which is very old, gets confused with operator >> . It's better to update the compiler.