Taking input of char* in array of struct

Question

struct student
{
       char *name;
       int roll_no;

};

student s1[3];

for(int i=0;i<3;i++)
{
        cout<<"Enter name: ";
        cin.getline(s1[i].name,'\n');
        cout<<"\nEnter roll number : ";
        cin>>s1[i].roll_no;        

}

I want to take full name input in "char* name", but this is not working I know , I can use string but is there any way to do this with char* ?

kvorobiev · Accepted Answer · 2015-04-10 10:34:56Z

2

In struct student you define pointer to char, but does not allocate memory for it. You need something like

#define STRSIZE 255
struct student
{
       char name[STRSIZE];
       int roll_no;

};
...
cin.getline(s1[i].name, STRSIZE);
...

And second arg to getline is length of input buffer, not delimiter.

answered Apr 10, 2015 at 10:34

kvorobiev

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4 Comments

Lightness Races in Orbit Over a year ago

Correct, but please god no this is terrible. Use std::string. The only reason to do this is to practice how not to do it. And, perhaps, if you're writing a library for C ... but the question is tagged c++!

kvorobiev Over a year ago

@Lightning Racis in Obrit I now how work with std::string. Just show the error in the authors code.

Lightness Races in Orbit Over a year ago

Yes, I understood that

kvorobiev Over a year ago

@CodeLearner What exactly not working? Please, provide more information

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