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Original file line number	Diff line number	Diff line change
`@@ -36,6 +36,11 @@ int main()`
`36`	`36`
`37`	`37`	`pcre2_match_data* match_data =pcre2_match_data_create_from_pattern(re,nullptr);`
`38`	`38`
	`39`	`+if (!match_data) {`
	`40`	`+ std::cout <<"PCRE2 unable to create match data" << std::endl;`
	`41`	`+return2;`
	`42`	`+ }`
	`43`	`+`
`39`	`44`	`for (auto line : lines) {`
`40`	`45`	`const PCRE2_SPTR subject = (PCRE2_SPTR) line.c_str();`
`41`	`46`	`constint rc =pcre2_match(re, subject, line.size(),0,0, match_data,nullptr);`

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