StrSubCpyFind, C++ (gcc)

StrSubCpyFind

//g++  7.4.0
////////////////////////////////////////////////////////////////////////////////StrSubCpyFind
//this code is created by Rezaul Hoque on July 14,2022;
//contact:jewelmrh@yahoo.com;Dhaka,Bangladesh;https://rezaulhoque.wordpress.com,https://hoquestake.blogspot.com
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning;
///////////////////////////////////////////////////////////////////////////

#include <iostream>
#include <string>

int main()
{
    std::string a= "Hi there! How are you?\n";
    std::string sub=a.substr(9,a.size()-9);
  std::cout<<sub<<"\n";
try{
   std::string s2=a.substr(a.size()+2,3);
   std::cout<<s2<<" \n";
}catch(const std::out_of_range& m)
{ std::cout<<"Size limit of string is crossed!\n";}

char copied[23]{};
a.copy(copied,sizeof copied);
std::cout<<copied<<"\n";
std::string::size_type n;
n=a.find("you",9);
if(n==std::string::npos)
 {std::cout<<"not found.\n";}
else
  {std::cout<<a.substr(n);}
return 0;
}


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