<div>
&gt;&gt; &nbsp; &nbsp; &nbsp; &nbsp;*findstring = *(searchString+j); &nbsp; &nbsp; &nbsp;-&gt;Want to do this, not sure how<br />
<br />
What is it that you want to do ?
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<div>
What exactly are you trying to accomplish?
</div>


<div>
This allows you to modify the location pointed to by findstring. &nbsp;I don't know why your way gives an access violation.<br />
<br />
It seems as though, in your code, findstring is pointing to a constant string that can't be modified.<br />
<br />
&nbsp; &nbsp;char *searchString=&quot;abcdefghijk<wbr />lmnopqrstu<wbr />vwxyz&quot;;<br />
&nbsp; &nbsp;char character[2];<br />
&nbsp; &nbsp;char *findstring=&amp;character;<br />
&nbsp; &nbsp;int j;<br />
&nbsp; &nbsp;<br />
&nbsp; &nbsp;strcpy(character,&quot;0&quot;);<br />
&nbsp; &nbsp;for(j=0; j &lt;&nbsp;26; j++)<br />
&nbsp; &nbsp;{<br />
&nbsp; &nbsp; &nbsp; &nbsp;*findstring = *(searchString+j); &nbsp; &nbsp; &nbsp;// Want to do this, not sure how<br />
&nbsp; &nbsp;}<br />

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<div>
Btw, note that you cannot modify a string literal, so doing this :<br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; *findstring = ...;<br />
<br />
when findstring points to a string literal :<br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; char *findstring=&quot;0&quot;;<br />
<br />
is invalid.
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<div>
&gt;&gt; I don't know why your way gives an access violation.<br />
<br />
Do you have information that we don't ?
</div>


<div>
&gt;&gt; It seems as though, in your code, findstring is pointing to a constant string that can't be modified.<br />
<br />
Btw, of course that's the case ;) A string literal is always const.
</div>


<div>
Infinity, maybe you can help me here. &nbsp;I have this old fixed idea, probably acquired in the dawn ages of K&amp;R, that something like<br />
&nbsp; &nbsp;char *str = &quot;123&quot;;<br />
&nbsp; &nbsp;*str = '0';<br />
is OK and will set *str to &quot;023&quot;. &nbsp;<br />
<br />
Clearly I am wrong, but I can't find anything in the C99 standard that says so. &nbsp;The closest I can find is<br />
6.4.4.4.6 It is unspecified whether these arrays are distinct provided their elements have the<br />
appropriate values. If the program attempts to modify such an array, the behavior is<br />
undefined.<br />
<br />
&quot;the behavior is undefined.&quot; is so unsatisfying.<br />
<br />
Can you point me to a better reference in the standard?
</div>


<div>
3.4.3<br />
1 undefined behavior<br />
behavior, upon use of a nonportable or erroneous program construct or of erroneous data,<br />
for which this International Standard imposes no requirements<br />
2 NOTE Possible undefined behavior ranges from ignoring the situation completely with unpredictable<br />
results, to behaving during translation or program execution in a documented manner characteristic of the<br />
environment (with or without the issuance of a diagnostic message), to terminating a translation or<br />
execution (with the issuance of a diagnostic message).<br />
3 EXAMPLE An example of undefined behavior is the behavior on integer overflow.
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<div>
Thank you, ozo. &nbsp;I was actually looking for a C99 reference that states that a string literal such as &quot;123&quot; is const in the C++ sense.<br />
<br />
sudarshantk, I apologize for taking your question in this direction.<br />
<br />
I'll ask my question separately, so that you can get on with your question.
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<div>
sudarshantk, ozo's answer is better than mine. &nbsp;Please award him the points.
</div>


<div>
&gt;&gt; Infinity, maybe you can help me here.<br />
<br />
It's already been answered, but I'd like to give a practical consideration. Since a string literal is const, the compiler often (sometimes ?) puts it in read-only memory. That's the reason that trying to modify a string literal gives undefined behavior.<br />
<br />
<br />
&gt;&gt;&nbsp;sudarshantk, ozo's answer is better than mine. &nbsp;Please award him the points.<br />
<br />
He has answered your question ;) I don't know what sudarshantk's question is, unless you know more than us ?
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<div>
sudarshantk, was the accepted answer the answer you were looking for ? If so, your original question wasn't very clear. A suggestion to get help faster is to include all information in the original question, and to answer to the expert's requests for clarification. Keep that in mind for the future ;)
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<div>
<div class="content wysiwyg-content">
char *searchString=&quot;abcdefghijk<wbr />lmnopqrstu<wbr />vwxyz&quot;;<br />
char *findstring=&quot;0&quot;;<br />
for(j=0; j &lt;&nbsp;26; j++)<br />
{<br />
&nbsp; &nbsp; &nbsp; &nbsp;*findstring = *(searchString+j); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-&gt;Want to do this, not sure how<br />
....................<br />
}<br />
Please let me know.<br />
<br />

</div>
</div>


char *searchString="abcdefghijklmnopqrstuvwxyz";
char *findstring="0";
for(j=0; j < 26; j++)
{
       *findstring = *(searchString+j);	->Want to do this, not sure how
....................
}
Please let me know.



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