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30 lines
868 B
30 lines
868 B
/**
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* File: built_in_hash.cpp
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* Created Time: 2023-06-21
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* Author: Krahets (krahets@163.com)
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*/
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#include "../utils/common.hpp"
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/* Driver Code */
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int main() {
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int num = 3;
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size_t hashNum = hash<int>()(num);
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cout << "整数 " << num << " 的哈希值为 " << hashNum << "\n";
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bool bol = true;
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size_t hashBol = hash<bool>()(bol);
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cout << "布尔量 " << bol << " 的哈希值为 " << hashBol << "\n";
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double dec = 3.14159;
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size_t hashDec = hash<double>()(dec);
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cout << "小数 " << dec << " 的哈希值为 " << hashDec << "\n";
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string str = "Hello 算法";
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size_t hashStr = hash<string>()(str);
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cout << "字符串 " << str << " 的哈希值为 " << hashStr << "\n";
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// 在 C++ 中，内置 std:hash() 仅提供基本数据类型的哈希值计算
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// 数组、对象的哈希值计算需要自行实现
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}
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