CS 50 Pointers


//  5    <---    
//  k          pk

*pk = 35; // * is de-reference operator, which gets the value where located of the address
==> we go to the address pointed to by pk, and change what we find.
==> k == 35;


// 5  
// k     pk
//    /
// 4
// m
int m;
m = 4;
pk = &m;

the things stored in pk would change to be the address of m, instead of k anymore.
#pointer #& #* #dereference






你可能感興趣的文章

初試啼聲,只用原生 JS 跟 CSS 寫「口罩地圖 」Ep.05

初試啼聲,只用原生 JS 跟 CSS 寫「口罩地圖 」Ep.05

W12_前後端整合_自己寫 API 並串接_學習筆記整理

W12_前後端整合_自己寫 API 並串接_學習筆記整理

React 新手起手式 0 - 開始寫 React 之前

React 新手起手式 0 - 開始寫 React 之前






留言討論