60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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**********************************************************************
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* Copyright (C) 2001-2006, International Business Machines
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* Corporation and others. All Rights Reserved.
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**********************************************************************
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*/
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#include "cstring.h"
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#include "ustrfmt.h"
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/***
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* Fills in a UChar* string with the radix-based representation of a
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* uint32_t number padded with zeroes to minwidth. The result
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* will be null terminated if there is room.
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*
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* @param buffer UChar buffer to receive result
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* @param capacity capacity of buffer
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* @param i the unsigned number to be formatted
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* @param radix the radix from 2..36
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* @param minwidth the minimum width. If the result is narrower than
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* this, '0's will be added on the left. Must be <=
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* capacity.
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* @return the length of the result, not including any terminating
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* null
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*/
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U_CAPI int32_t U_EXPORT2
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uprv_itou (UChar * buffer, int32_t capacity,
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uint32_t i, uint32_t radix, int32_t minwidth)
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{
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int32_t length = 0;
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int digit;
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int32_t j;
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UChar temp;
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do{
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digit = (int)(i % radix);
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buffer[length++]=(UChar)(digit<=9?(0x0030+digit):(0x0030+digit+7));
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i=i/radix;
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} while(i && length<capacity);
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while (length < minwidth){
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buffer[length++] = (UChar) 0x0030;/*zero padding */
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}
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/* null terminate the buffer */
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if(length<capacity){
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buffer[length] = (UChar) 0x0000;
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}
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/* Reverses the string */
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for (j = 0; j < (length / 2); j++){
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temp = buffer[(length-1) - j];
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buffer[(length-1) - j] = buffer[j];
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buffer[j] = temp;
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}
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return length;
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}
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