strcpy/strcmp errors

[Dena]

Hi - it's the student again!<br>Here's my code & the errors that I keep getting.&nbsp;&nbsp;I've tried several different fixes<br>and consulted numerous texts.&nbsp;&nbsp;Please explain why this is not working and how it can be fixed... thank you!<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;struct structure&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char FName[19];<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char LName[19];<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char Address[51];<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;};<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;structure entry[50];&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;structure tempname;<br><br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;void Alphabetize(int structcount, structure &entry)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br><br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (int count=0;count&lt;(structcount-1);count++)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (strcmp(entry.LName[count], entry.LName[count+1]) &lt; 0)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;strcpy(tempname, entry.LName[count]);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;strcpy(entry.LName[count], entry.LName[count+1]);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;strcpy(entry.LName[count+1], tempname);<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}

 

[Karl Blessing]

strcmp assumes you are passing an array of characters, not a single character. if You want to compare two single characters if 'a' = 'a' would do fine, but it appears you are trying to check if its smaller or whatnot, so try using an amperstand & , which means Address of. because it is expecting a pointer to a string (which is the only way to get entry into a multicharacter string)<br><br>also Temperturename is not a string, its a struct as you declared it as<br><br>if (strcmp(&entry.LName[count], &entry.LName[count+1]) &lt; 0)<br>{<br>//next line isnt a string, fix it or change its type<br>strcpy(tempname, entry.LName[count]);<br><br>strcpy(&entry.LName[count], entry.LName[count+1]);<br>strcpy(&entry.LName[count+1], tempname);<br><br>} <p>Karl<br><a href=mailto:kb244@kb244.8m.com>kb244@kb244.8m.com</a><br><a href=

http://kb244.8m.com>

</a><br>Experienced in , or have messed with : VC++, Borland C++ Builder, VJ++6(starting),VB-Dos, VB1 thru VB6, Delphi 3 pro, Borland C++ 3(DOS), Borland C++ 4.5, HTML, ASP(somewhat), QBasic(least i didnt start with COBOL)

 

[ssingh]

When you are using strcmp, you need to pass the string not a character. You are passing&nbsp;&nbsp;both the parameter as a character entry.LName[count], entry.LName[count+1] . You need to pass the string. <br>I think you just compare these two characters . For eg. <br>if (entry.LName[count]&lt; entry.LName[count+1]) .<br><br>Does that solve your problem<br>Thanx<br>Siddhartha Singh<br><A HREF="mailto:ssingh@aztecsoft.com">ssingh@aztecsoft.com</A><br>

 

[TomMcL2]

entry is an array of type structure and needs to be indexed if you want to compare the character strings inside it.<br>so entry[count].LName is a character array and can be compared with strcmp();<br><br>ex:<br>if(strcmp(entry[count].LName, entry[count+1].LName) == 0)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// in here means it was a match<br>i am assuming you are looking to compare the LName members of 2 ajoining entries<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}