keywords: C++ linkage

Case:
Compilation Error:

android-ndk-r14b/sources/cxx-stl/gnu-libstdc++/4.9/include\bits/memoryfwd.h(63,3):  error: templates must have C++ linkage template<typename>

Solution:
Change extern "C" to extern "C++" if used template of C++.

#ifdef __cplusplus
extern "C++" {
#endif /* __cplusplus */

#include <string>
#include <sstream>

template <typename T>
std::string to_string(T value)
{
    std::ostringstream os ;
    os << value ;
    return os.str() ;
}

#ifdef __cplusplus
}
#endif /* __cplusplus */

你就像黑夜,拥有寂静与群星。——聂鲁达