κ·Έλ°κ±΄ μκ³ C++ μ§λ¬Έμ μ¬
#include <iostream>
using namespace std;
void swap_using_value(int a, int b)
{
int tmp = a;
a = b;
b = tmp;
}
void swap_using_ref(int& a, int& b)
{
int tmp = a;
a = b;
b = tmp;
}
void main()
{
int u, v;
u = 1, v = 2;
swap_using_value(u, v);
cout << u << " " << v << endl;
u = 1, v = 2;
swap_using_ref(u, v);
cout << u << " " << v << endl;
}
CMD κ²°κ³Όκ°
12
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νλ¨Έκ°€μ λ₯κΈμ΄ λλ§μμ μ¬κΈ°λ€ μ¬λ¦Όλλ€ γ
swap_using_value ν¨μ μ κ±° μ μ«μ μλ°λκ³ 1 2λ‘ λμ€λκ±°μμ?
ν¨μμ κ°μ΄ 볡μ¬λμ μ λ¬λκ±°λΌ κ·ΈλΌ
Call by value, call by reference ꡬκΈμ κ²μν΄λ΄
κ·ΈλΌ μ κΈ°μ 2 1 λ‘ λ°κΎΈκ² νλ €λ©΄ μ΄μΌν΄μΌν¨?
λ°μμ²λΌ μ°Έμ‘°μμ¨μ μ λ¬νκ±°λ ν¬μΈν°μ¨μ μ λ¬ν΄μΌμ§
μκ·ΈλΌ μ½λ°μ΄ν¬μΈν° μ½λ°μ΄λ νΌλ°μ€λ§ λλ ꡬ쑰μ?
μ μμ μΈ λ°©λ²μΌλ‘λ γ γ
Thx , have a good night sleept tight
κΉμλ³΅μ¬ μμ볡μ¬
μ΄κ±° λ§μ?
μ΄μλΌ μ μλ³μ μ§μλ³μλ κ΅¬λΆ λͺ»νλλ° c++νκ³ μλ€
κΉμλ³΅μ¬ μμ볡μγ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ