help on poinetrs

[sreeram]

hi can any one say if i can copy one pointer to another with a string added to the second pointer before copying.i did try using stringcopy but i couldn't get result.so can anyoine help me

 

[ssingh]

I didn't get your question properly . If you want to copy two strings of pointers . Here is a single line code:<br><br>while(*dest++ = *source++);<br><br>Does it answer your question ?<br>Thanx<br>Siddhartha Singh<br><A HREF="mailto:ssingh@aztecsoft.com">ssingh@aztecsoft.com</A>

 

[tmoses]

If i interpret your question correctly you have<br>one pointer such as<br>char * test1 = &quot;whatever&quot;<br>then have a string<br>say<br>char [] test2 = &quot;example&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&quot;;<br>You can then copy the characters from test1 to test2<br>bye putting it in a loop like<br><br>for (int i = 8; i &lt;= 18; i++)<br> test2<i> = *(test1++);<br><br>this copies the characters from one to another, just <br>becarefull not to copy the memory address of the pointer<br>and that you actually have the additional room in the <br>string.&nbsp;&nbsp;oh all the statements might no be exact it has been awile since i did c <br><br>hope this helps&nbsp;&nbsp;ackka <p>moses<br><a href=mailto:tmoses@iname.com>tmoses@iname.com</a><br><a href=

http://home.cyberarmy.com/ackka>

</a><br>

 

[Guest_imported]

My problem is i am using two pointers in a function which is called in main , so as and when i come out of the fucntion i have to get all the contants of the pointer cleared so that when i call the function again i get as if i am using a new pointer else when i am call the fuction again the arguments r getting added to the pointer.like<br><br>main(){<br>char *des1<br>char *scr1<br>char *name1;<br>char *value1;<br><br>&nbsp;fun_text(des1,scr1,name,value);<br>}<br><br>void fun_text(char *des,char *scr,char *name,char *value)<br>{<br><br>coding for function...<br>}<br><br><br>here in the above for the first time my fuction is working fine but when i call it second time its giving me problem,the arguments i am passing r getting added to the previous pointer only.<br><br>sugget a way where in i can clear the contents of pointer in function<br>

 

[ssingh]

O.k , You do one thing . When you are going to call the function next time. Just do<br>src = NULL;<br>dest = NULL;<br>But one question are you allocating memory to the pointers any where or not ?<br>If not then behaviour would be different.<br><br>Does this answer your question ?<br>Thanx<br>Siddhartha Singh<br><A HREF="mailto:ssingh@aztecsoft.com">ssingh@aztecsoft.com</A>