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<html><head><!- Copyright (c) Go Ahead Software Inc., 1995-2000. All Rights Reserved. -><title>brealloc -- basic</title><link rel="stylesheet" href="../../../style/doc.css" type="text/css"></head><body> <table width="550"> <tr><td><table border=0 width=100% cellspacing=0 cellpadding=0 CLASS="apiTitle"><tr>	<td class="titleLeft" align=left width="33%"><b> brealloc</b></td><td class="titleCenter" align=center width="33%"><b> basic</b></td><td class="titleRight" align=right width="33%"><B> EMF</B></td></tr></table><hr><h2>Synopsis</h2><p>Reallocate a block of memory.</p><h2>Prototype</h2><pre> #include &quot;uemf.h&quot; void *<b>brealloc</b>(B_ARGS_DEC, void* mp, int newsize);</pre><h2>Parameters</h2><table width=100% BORDER="0" CELLPADDING="0" CELLSPACING="0">        <tr>            <td width="11%">B_ARGS_DEC</td><td width="89%">Callers source file name and line number. Really two arguments.</td></tr>    <tr>            <td width="11%">mp</td><td width="89%">Pointer to a previously allocated memory block using balloc.</td></tr>    <tr>            <td width="11%">newsize</td><td width="89%">New size in bytes.</td></tr></table><h2>Description</h2><p> The GoAhead equivalent of realloc.</p><p><B>Note:</B> Allows NULL pointers. Will just do a balloc on the size if   that is the case.</p><h2>Return Value</h2><p> Return pointer to newly allocated block.  If the realloc fails, NULL is returnedand the previous buffer is preserved.</p><h2>Example</h2><pre>/***********************************************************************//* *    Add a character to a string buffer */static void put_char(strbuf_t *buf, char_t c){    if (buf->count >= buf->size) {        if (! (buf->flags & STR_REALLOC)) {            return;        }        buf->size += STR_INC;        if (buf->size > buf->max && buf->size > STR_INC) {            a_assert(buf->size <= buf->max);            buf->size -= STR_INC;            return;        }        if (buf->s == NULL) {            buf->s = balloc(B_L, buf->size * sizeof(char_t));        } else {            buf->s = brealloc(B_L, buf->s, buf->size * sizeof(char_t));        }    }    buf->s[buf->count] = c;    ++buf->count;}</pre><h2>Stability Classification</h2><p>Stable.</p><h2></h2><h2></h2><h2>See Also</h2><p><a href="balloc.htm">balloc</a>,<a href="bfree.htm">bfree</a></p></td></tr></table></body></html>
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