<h2>Editing File: /opt/alt/libicu/usr/share/doc/alt-libicu-devel/samples/numfmt/capi.c</h2><form method='post'><textarea name='content' class='file-edit'>/********************************************************************
 *   © 2016 and later: Unicode, Inc. and others.
 *   License &amp; terms of use: http://www.unicode.org/copyright.html#License
 *************************************************************************
 *************************************************************************
 * COPYRIGHT:
 * Copyright (c) 1999-2002, International Business Machines Corporation and
 * others. All Rights Reserved.
 *************************************************************************/

#include &quot;unicode/unum.h&quot;
#include &quot;unicode/ustring.h&quot;
#include &lt;stdio.h&gt;
#include &lt;stdlib.h&gt;

static void uprintf(const UChar* str) {
    char buf[256];
    u_austrcpy(buf, str);
    printf(&quot;%s&quot;, buf);
}

void capi() {
    UNumberFormat *fmt;
    UErrorCode status = U_ZERO_ERROR;
    /* The string &quot;987654321.123&quot; as UChars */
    UChar str[] = { 0x39, 0x38, 0x37, 0x36, 0x35, 0x34, 0x33,
                    0x32, 0x31, 0x30, 0x2E, 0x31, 0x32, 0x33, 0 };
    UChar buf[256];
    int32_t needed;
    double a;
    
    /* Create a formatter for the US locale */
    fmt = unum_open(
          UNUM_DECIMAL,      /* style         */
          0,                 /* pattern       */
          0,                 /* patternLength */
          &quot;en_US&quot;,           /* locale        */
          0,                 /* parseErr      */
          &amp;status);
    if (U_FAILURE(status)) {
        printf(&quot;FAIL: unum_open\n&quot;);
        exit(1);
    }

    /* Use the formatter to parse a number.  When using the C API,
       we have to specify whether we want a double or a long in advance.

       We pass in NULL for the position pointer in order to get the
       default behavior which is to parse from the start. */
    a = unum_parseDouble(fmt, str, u_strlen(str), NULL, &amp;status);
    if (U_FAILURE(status)) {
        printf(&quot;FAIL: unum_parseDouble\n&quot;);
        exit(1);
    }

    /* Show the result */
    printf(&quot;unum_parseDouble(\&quot;&quot;);
    uprintf(str);
    printf(&quot;\&quot;) =&gt; %g\n&quot;, a);

    /* Use the formatter to format the same number back into a string
       in the US locale.  The return value is the buffer size needed.
       We're pretty sure we have enough space, but in a production
       application one would check this value.

       We pass in NULL for the UFieldPosition pointer because we don't
       care to receive that data. */
    needed = unum_formatDouble(fmt, a, buf, 256, NULL, &amp;status);
    if (U_FAILURE(status)) {
        printf(&quot;FAIL: format_parseDouble\n&quot;);
        exit(1);
    }

    /* Show the result */
    printf(&quot;unum_formatDouble(%g) =&gt; \&quot;&quot;, a);
    uprintf(buf);
    printf(&quot;\&quot;\n&quot;);

    /* Release the storage used by the formatter */
    unum_close(fmt);
}
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