Find character in stringSearches the string for any of the characters that are part of either str, s or c, and returns the position of the first occurrence in the string.When pos is specified the search only includes characters on or after position pos, ignoring any possible occurrences at previous character positions.Notice that for a match to happen it is enough that one of the characters matches in the string (any of them). To search for an entire sequence of characters use find instead.size_t find_first_of ( const string& str, size_t pos = 0 ) const;size_t find_first_of ( const char* s, size_t pos, size_t n ) const;size_t find_first_of ( const char* s, size_t pos = 0 ) const;size_t find_first_of ( char c, size_t pos = 0 ) const;// string::find_first_of#include <iostream>#include <string>using namespace std;int main (){ string str ("Replace the vowels in this sentence by asterisks."); size_t found; found=str.find_first_of("aeiou"); while (found!=string::npos) { str[found]='*'; found=str.find_first_of("aeiou",found+1); } cout << str << endl; return 0;}R*pl*c* th* v*w*ls *n th*s s*nt*nc* by *st*r*sks. C++
Topic: String
Explain about string find_first_of method and with example ?
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