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Update cpp_tricks.md: gen(std::random_device()()); 会被当成函数，无法编译 #46

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Sep 22, 2024
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Update cpp_tricks.md: gen(std::random_device()()); 会被当成函数，无法编译 #46

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2 changes: 1 addition & 1 deletion docs/cpp_tricks.md
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Expand Up @@ -725,7 +725,7 @@ int main() {
如果喜欢老式的函数调用风格接口，可以封装一个新的 C++ 重置版安全 `rand`：

```cpp
thread_local std::mt19937 gen(std::random_device()()); // 每线程一个，互不冲突
thread_local std::mt19937 gen(std::random_device{}()); // 每线程一个，互不冲突

int randint(int min, int max) {
return std::uniform_int_distribution<int>(min, max)(gen);
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