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Correct 04-noexcept.cpp

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Original file line number	Diff line number	Diff line change
@@ -538,23 +538,23 @@ The keyword `noexcept` is used to declare that a function is guaranteed to not t
`538`	`538`	`#include <stdexcept>`
`539`	`539`	`using namespace std;`
`540`	`540`
`541`		`-int throw_if_zero(int i) noexcept {`
	`541`	`+void throw_if_zero(int i) {`
`542`	`542`	`if (!i) {`
`543`	`543`	`throw runtime_error("found a zero");`
`544`	`544`	`}`
`545`	`545`	`println("throw_if_zero(): {}", i);`
`546`	`546`	`}`
`547`	`547`
`548`	`548`	`int main() {`
`549`		`- cout << "Entering main()\n";`
	`549`	`+ println("Entering main()");`
`550`	`550`	`try {`
`551`	`551`	`throw_if_zero(1);`
`552`	`552`	`throw_if_zero(0);`
`553`	`553`	`}`
`554`		`- catch(...) {`
`555`		`- println("Caught an exception!");`
	`554`	`+ catch(exception& e) {`
	`555`	`+ println("Caught an exception: {}", e.what());`
`556`	`556`	`}`
`557`		`- println("Leaving main()\n");`
	`557`	`+ println("Leaving main()");`
`558`	`558`	`}`
`559`	`559`	```
`560`	`560`

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