[C++ Template]what is the type of instantiation of template

The book <<C++ templates>> said:

however, in VS2008 and gcc 4.3, the compilers can deduce the type of parameter. The followed code has no compile error.

look here(http://ideone.com/yTpaJ ) for gcc result.

#include <vector>

#include <algorithm>

using namespace std;

template <typename T, int VAL>

T addValue (T const& x) {

return x + VAL;

}

int main(int argc, char* argv[])

{

vector<int> source;

vector<int> dest;

int (*funP)(int const&);

funP = addValue<int,5>;

std::transform (source.begin(), source.end(), // start and end of source

dest.begin(), // start of destination

addValue<int,5>); // operation

std::transform (source.begin(), source.end(), // start and end of source

dest.begin(), // start of destination

funP);

return 0;

}

原文链接: https://www.cnblogs.com/aoaoblogs/archive/2011/07/06/2099052.html

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