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30 lines
912 B
C++
30 lines
912 B
C++
/**
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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 << "The hash value of integer " << num << " is " << hashNum << "\n";
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bool bol = true;
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size_t hashBol = hash<bool>()(bol);
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cout << "The hash value of boolean " << bol << " is " << 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 << "The hash value of decimal " << dec << " is " << hashDec << "\n";
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string str = "Hello algorithm";
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size_t hashStr = hash<string>()(str);
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cout << "The hash value of string " << str << " is " << hashStr << "\n";
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// In C++, the built-in std:hash() only provides hash values for basic data types
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// Hash value calculation for arrays and objects must be implemented manually
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}
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