CharSearch, C++ (gcc)

CharSearch

//g++  7.4.0
//CharSearch
// write a function that searches n bytes beginning with s for the character c, where n is the number of bytes that has to be incremented before it points to the null character; if the character is found a pointer to it is returned, otherwise return NULL;

//this code is created by Rezaul Hoque on July 29, 2021;contact: jewelmrh@yahoo.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>
using namespace std;
int n=7;
char* chr(char* ,char);
char* chr(char* s,char c){
char * p= s;//pointer p is assigned to indicate the first element of array s
while(*p!=NULL)//till pointer p indicates the NULL character,do the following things
{
if(*p==c)// if *p(value indicated by the pointer) is the desired character then return the address
return p;

++p;//increment the pointer
}
return NULL;
}
int main()
{
char s[7]="ABCDEF";
char c;
char * p;

cin>>c;
if(p=chr(s,c))
{
  cout<<c<<" is found at "<<p;
}

else 
{
     cout <<c<<" is not found";
}

return 0;
}


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