1/********************************************************************
2 * COPYRIGHT:
3 * Copyright (c) 1999-2002, International Business Machines Corporation and
4 * others. All Rights Reserved.
5 ********************************************************************/
6
7#include "unicode/unum.h"
8#include "unicode/ustring.h"
9#include <stdio.h>
10#include <stdlib.h>
11
12static void uprintf(const UChar* str) {
13    char buf[256];
14    u_austrcpy(buf, str);
15    printf("%s", buf);
16}
17
18void capi() {
19    UNumberFormat *fmt;
20    UErrorCode status = U_ZERO_ERROR;
21    /* The string "987654321.123" as UChars */
22    UChar str[] = { 0x39, 0x38, 0x37, 0x36, 0x35, 0x34, 0x33,
23                    0x32, 0x31, 0x30, 0x2E, 0x31, 0x32, 0x33, 0 };
24    UChar buf[256];
25    int32_t needed;
26    double a;
27
28    /* Create a formatter for the US locale */
29    fmt = unum_open(
30          UNUM_DECIMAL,      /* style         */
31          0,                 /* pattern       */
32          0,                 /* patternLength */
33          "en_US",           /* locale        */
34          0,                 /* parseErr      */
35          &status);
36    if (U_FAILURE(status)) {
37        printf("FAIL: unum_open\n");
38        exit(1);
39    }
40
41    /* Use the formatter to parse a number.  When using the C API,
42       we have to specify whether we want a double or a long in advance.
43
44       We pass in NULL for the position pointer in order to get the
45       default behavior which is to parse from the start. */
46    a = unum_parseDouble(fmt, str, u_strlen(str), NULL, &status);
47    if (U_FAILURE(status)) {
48        printf("FAIL: unum_parseDouble\n");
49        exit(1);
50    }
51
52    /* Show the result */
53    printf("unum_parseDouble(\"");
54    uprintf(str);
55    printf("\") => %g\n", a);
56
57    /* Use the formatter to format the same number back into a string
58       in the US locale.  The return value is the buffer size needed.
59       We're pretty sure we have enough space, but in a production
60       application one would check this value.
61
62       We pass in NULL for the UFieldPosition pointer because we don't
63       care to receive that data. */
64    needed = unum_formatDouble(fmt, a, buf, 256, NULL, &status);
65    if (U_FAILURE(status)) {
66        printf("FAIL: format_parseDouble\n");
67        exit(1);
68    }
69
70    /* Show the result */
71    printf("unum_formatDouble(%g) => \"", a);
72    uprintf(buf);
73    printf("\"\n");
74
75    /* Release the storage used by the formatter */
76    unum_close(fmt);
77}
78