1/*
2**********************************************************************
3*   Copyright (C) 2001-2006, International Business Machines
4*   Corporation and others.  All Rights Reserved.
5**********************************************************************
6*/
7
8#include "cstring.h"
9#include "ustrfmt.h"
10
11
12/***
13 * Fills in a UChar* string with the radix-based representation of a
14 * uint32_t number padded with zeroes to minwidth.  The result
15 * will be null terminated if there is room.
16 *
17 * @param buffer UChar buffer to receive result
18 * @param capacity capacity of buffer
19 * @param i the unsigned number to be formatted
20 * @param radix the radix from 2..36
21 * @param minwidth the minimum width.  If the result is narrower than
22 *        this, '0's will be added on the left.  Must be <=
23 *        capacity.
24 * @return the length of the result, not including any terminating
25 *        null
26 */
27U_CAPI int32_t U_EXPORT2
28uprv_itou (UChar * buffer, int32_t capacity,
29           uint32_t i, uint32_t radix, int32_t minwidth)
30{
31    int32_t length = 0;
32    int digit;
33    int32_t j;
34    UChar temp;
35
36    do{
37        digit = (int)(i % radix);
38        buffer[length++]=(UChar)(digit<=9?(0x0030+digit):(0x0030+digit+7));
39        i=i/radix;
40    } while(i && length<capacity);
41
42    while (length < minwidth){
43        buffer[length++] = (UChar) 0x0030;/*zero padding */
44    }
45    /* null terminate the buffer */
46    if(length<capacity){
47        buffer[length] = (UChar) 0x0000;
48    }
49
50    /* Reverses the string */
51    for (j = 0; j < (length / 2); j++){
52        temp = buffer[(length-1) - j];
53        buffer[(length-1) - j] = buffer[j];
54        buffer[j] = temp;
55    }
56    return length;
57}
58