std::cout
class
#include <iostream>
class box_world
{
public:
void greeting() const
{
std::cout
<< "Cheers, c++ !"
<< std::endl;
}
};
int main()
{
auto box = box_world{};
box.greeting();
}
- std::cout (std::cout)
- c++ class
c++ std::copy:
copy memory area
#include <algorithm>
int main()
{
// c++ array
char src[] = {"Hello, c++!"};
// Note: src[11] == '\0'
int size = 11 + 1;
char * dst = new char[size];
std::copy(src, src+size, dst);
delete [] dst;
}
- std::copy (std::copy)
- new
- delete
c++ std::fill:
fill memory area
#include <algorithm>
int main()
{
// c++ array
char src[100];
std::fill(src, src+100, '0');
}
- std::fill (std::fill)
c++ std::mt19937
Get Random Number
std::random_device seed;
std::mt19937 rng{seed()};
auto rd_value = rng();
std::cout << rd_value << std::endl;
- std::mt19937
- std::random_device
