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fix: cpp_tricks 中地板除的数字错误typo #57

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Merged
archibate merged 1 commit into from
Oct 18, 2024
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fix: cpp_tricks 中地板除的数字错误typo #57

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4 changes: 2 additions & 2 deletions docs/cpp_tricks.md
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Original file line number Diff line number Diff line change
Expand Up @@ -88,13 +88,13 @@ std::wstring utf8_to_wstring(std::string const &s) {

```cpp
int a = 14, b = 5;
int c = a / b; // c = 14 / 5 = 3
int c = a / b; // c = 14 / 5 = 2
```

等价于

```cpp
int c = floor((float)a / b); // c = floor(2.8) = 3
int c = floor((float)a / b); // c = floor(2.8) = 2
```

如果 `a` 除以 `b` 除不尽，那么会找到比他大的第一个整数作为结果，这就是**地板除 (floor div)**。
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