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    <blockquote> <p><strong>a) Where I was wrong?where my programming logic getting fail?</strong></p> </blockquote> <p>Well, you did several things incorrectly. For one, <code>void main</code> is non-standard; the return type for <code>main</code> should be <code>int</code>.</p> <p>That being said, the <em>real</em> issue you're looking for has to do with the fact that <code>q</code> is uninitialized, yet you attempt to still copy to memory through it (which is undefined behavior). To correct that, try allocating <code>q</code>, e.g.</p> <pre><code>char *q = malloc(8); </code></pre> <p>Note you must then later also take care to <code>free</code> the memory allocated here.</p> <p>Aside from that, you're forgetting to copy the <code>NUL</code> terminator, too.</p> <pre><code>*q = 0; </code></pre> <p>... after your copying loop. You also are printing <code>q</code> after incrementing the pointer, so it will no longer be at the head of the string by the time of your <code>printf</code> call. You should store a copy of the head in another variable. Additionally, be careful using a plain <code>printf</code> without any new-lines, as the stream may be buffered and thus could remain unflushed -- use an explicit <code>fflush(stdout);</code> </p> <hr> <blockquote> <p><strong>b) How can I improve this code to get desired output?</strong></p> </blockquote> <p>Well, the first most straight-forward improvement I can think of is to use <a href="http://en.cppreference.com/w/c/string/byte/strcpy" rel="nofollow"><code>strcpy</code></a>.</p> <pre><code>#include &lt;stdio.h&gt; main() { const char p[] = "krishna"; char q[sizeof p]; strcpy(q, p); puts(q); getchar(); return 0; } </code></pre>
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    1. POTrouble copying a string in C?
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    1. COcheck my own answer in the context of what you stated that q must point to a memory location......my own answer works
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    2. CO@krishnaChandra did you try `fflush(stdout);`? You may need to explicitly flush the stream.
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    3. CO@krishnaChandra it could honestly be any number of things given the amount of undefined behavior.
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