82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
/********************************************************************
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* © 2016 and later: Unicode, Inc. and others.
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* License & terms of use: http://www.unicode.org/copyright.html#License
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*************************************************************************
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*************************************************************************
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* COPYRIGHT:
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* Copyright (c) 1999-2002, International Business Machines Corporation and
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* others. All Rights Reserved.
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*************************************************************************/
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#include "unicode/unum.h"
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#include "unicode/ustring.h"
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#include <stdio.h>
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#include <stdlib.h>
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static void uprintf(const UChar* str) {
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char buf[256];
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u_austrcpy(buf, str);
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printf("%s", buf);
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}
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void capi() {
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UNumberFormat *fmt;
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UErrorCode status = U_ZERO_ERROR;
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/* The string "987654321.123" as UChars */
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UChar str[] = { 0x39, 0x38, 0x37, 0x36, 0x35, 0x34, 0x33,
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0x32, 0x31, 0x30, 0x2E, 0x31, 0x32, 0x33, 0 };
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UChar buf[256];
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int32_t needed;
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double a;
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/* Create a formatter for the US locale */
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fmt = unum_open(
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UNUM_DECIMAL, /* style */
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0, /* pattern */
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0, /* patternLength */
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"en_US", /* locale */
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0, /* parseErr */
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&status);
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if (U_FAILURE(status)) {
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printf("FAIL: unum_open\n");
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exit(1);
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}
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/* Use the formatter to parse a number. When using the C API,
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we have to specify whether we want a double or a long in advance.
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We pass in NULL for the position pointer in order to get the
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default behavior which is to parse from the start. */
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a = unum_parseDouble(fmt, str, u_strlen(str), NULL, &status);
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if (U_FAILURE(status)) {
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printf("FAIL: unum_parseDouble\n");
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exit(1);
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}
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/* Show the result */
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printf("unum_parseDouble(\"");
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uprintf(str);
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printf("\") => %g\n", a);
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/* Use the formatter to format the same number back into a string
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in the US locale. The return value is the buffer size needed.
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We're pretty sure we have enough space, but in a production
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application one would check this value.
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We pass in NULL for the UFieldPosition pointer because we don't
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care to receive that data. */
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needed = unum_formatDouble(fmt, a, buf, 256, NULL, &status);
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if (U_FAILURE(status)) {
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printf("FAIL: format_parseDouble\n");
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exit(1);
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}
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/* Show the result */
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printf("unum_formatDouble(%g) => \"", a);
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uprintf(buf);
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printf("\"\n");
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/* Release the storage used by the formatter */
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unum_close(fmt);
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}
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