48 lines
725 B
C++
48 lines
725 B
C++
#include <iostream>
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#include <string>
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#include <string_view>
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using namespace std;
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string repeat1(string_view s)
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{
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return string {
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s}
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+string {
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s};
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}
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void repeat2(string & s)
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{
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s += s;
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}
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void repeat3(string * s)
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{
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*s += *s;
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}
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string *repeat4(string_view s)
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{
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string *result = new string;
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*result = string {
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s} +string {
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s};
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return result;
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}
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int main()
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{
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string meow;
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cin >> meow;
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cout << "test of repeat1:" << endl << repeat1(meow) << endl;
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repeat2(meow);
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cout << "test of repeat2:" << endl << meow << endl;
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repeat3(&meow);
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cout << "test of repeat3:" << endl << meow << endl;
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cout << "test of repeat4:" << endl << *repeat4(meow) << endl;
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}
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