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    <p>Please recognize that you are comingling C++ string (std::string) and the C library strcpy and strcmp functions. They are two different things. You probably need to look at some of the methods available under the std::string class (.c_str, =, ==),</p> <p>Here are a few comments, and suggestions,</p> <pre><code>void search (string sid[], //do you intend to pass a string sid, or an array of srings? string name[], //do you intend to pass a string name, or an array of strings? int No_of_data_input) { char id[100]; string input; char namename[100]; //comments ignored/removed //these two lines declare the function strcpy char * strcpy ( char * namename, const char * name ); char * strcpy ( char * id, const char * sid ); //do you intend to copy name and sid instead? //do you want: strcpy(namename, name[i].c_str() ); //do you want: strcpy(id, sid[i].c_str() ); //if so, you want to do this inside your loop on i, below, int sameName=0; int j=0; cout&lt;&lt;"enter id or name"; getline(cin,input); //you probably want: cin &gt;&gt; input; //do you intend to declare the function strcpy yet again? char * strcpy ( char * inputinput, const char * input ); //or do you intend to copy input to some char[]? //you probably want: strcpy( inputinput, input.c_str() ); //you probably want number of elements in sid[] or name[]? for(int i=0;i&lt;4;i++){ //you probably want sid[i] here if ((strcmp(inputinput,id[i])==0) || (strcmp(inputinput,name[i])==0)){ //you could rewrite this as: //if( (input == id[i]) || (input == name[i]) ){ sameName++; j=i; } //do us a favor } //make the ending braces clearer cout&lt;&lt;sameName; if (sameName==0) cout&lt;&lt;"No student found: "; else if (sameName==1) cout&lt;&lt;"student found: "&lt;&lt;name[j]&lt;&lt;endl&lt;&lt;id[j]; else if (sameName&gt;1) cout&lt;&lt;"More than one student found,please enter id"; } </code></pre> <p>Do you want (or need) to comingle std::string and strcpy, strcmp?</p> <p>Editing your code, you might want to just use std::string,</p> <pre><code>void search (string sid[], //do you intend to pass an array of srings? string name[], //do you intend to pass an array of strings? int count) { string input; int same=0; int j=0; cout&lt;&lt;"enter id or name"; cin &gt;&gt; input; //you probably want number of elements in sid[] or name[]? for(int i=0;i&lt;count;++i){ if( (input == sid[i]) || (input == name[i]) ){ ++same; j=i; } } cout&lt;&lt;"same: "&lt;&lt;same&lt;&lt;endl; if (same==0) cout&lt;&lt;"No student found: "&lt;&lt;endl; else if (same==1) cout&lt;&lt;"student found: "&lt;&lt;name[j]&lt;&lt;","&lt;&lt;id[j]&lt;&lt;endl; else if (same&gt;1) cout&lt;&lt;"More than one student found,please enter id"&lt;&lt;endl; } </code></pre> <p>Maybe you could use a vector of strings? Then you could use an iterator on the vector.</p> <p>You may have more success if you define a student record (containing sid and name), and pass a vector of student records. Then use an iterator over that vector -- read about vector and iterators.</p>
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    1. POMad on strcmp and strcpy
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    1. USChuckCottrill
    1. USChuckCottrill
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    1. COThankyou so so much. but i still got problem in namename
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      1. USuser3018702
    2. COit states that imput cant not == to id[i] T T
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      1. USuser3018702
 

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