#include <iostream>
#include <vector>
void someCApi(const char** c, size_t len)
{
for (size_t i=0; i<len; ++i)
{
std::cout << static_cast<int>((*c)[i]) << std::endl;
}
}
int main()
{
std::vector<char> buff{1,3,5,7,11,13,17,19};
const char* buffPtr = buff.data();
someCApi(&buffPtr, buff.size());
return 0;
}