#include #include using namespace std; //hasHelpOption() definition int hasHelpOption(int argc, char **argv) {  for(int i=0;i

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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#include <iostream>
#include <string.h>
using namespace std;

//hasHelpOption() definition

int hasHelpOption(int argc, char **argv)
{
 for(int i=0;i<argc;++i) 
  if(((strcmp(argv[1],"--help"))==0) || ((strcmp(argv[1],"/help"))==0) || ((strcmp(argv[1],"/?"))==0))
      return 1;
  else 
  return 0;
}

//main function

int main(int argc, char** argv) 

    int x=0;
 cout << "You have entered: "<<argv[1]; 
 x=hasHelpOption(argc,argv);
 
 if(x==1)
 cout<<"\nTrue";
 else
 cout<<"\nFalse";
 return 0; 

 

 

 

what should i correct for the code?

Expert Solution
Step 1

Your program gives the following warning on compilation:

Computer Science homework question answer, step 1, image 1

It is because the compiler can not tell that if the function will return something. Because in a scenario of variable 'argc' having a value equal to less than 0, 'for' loop will never run and the compiler doesn't know what return. You have to make sure that the program is returning a value irrespective of conditional statements.

 

 

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