scuffed-code/icu4c/source/common/ustrfmt.c
2001-11-30 00:06:13 +00:00

85 lines
2.0 KiB
C

/*
**********************************************************************
* Copyright (C) 2001-2003, International Business Machines
* Corporation and others. All Rights Reserved.
**********************************************************************
*/
#include <stdio.h>
#include "cstring.h"
#include "ustrfmt.h"
U_CAPI double U_EXPORT2
uprv_strtod(const char* source, char** end)
{
return strtod(source,end);
}
U_CAPI char* U_EXPORT2
uprv_dtostr(double value, char *buffer, int maximumDigits,UBool fixedPoint)
{
char *itrPtr = buffer + 1; /* skip '-' or a number before the decimal */
char *startPtr;
sprintf(buffer,"%f",value);
/* Find the decimal point.
Some unusal machines use a comma when the system locale changes
*/
while (isalnum(*itrPtr)) {
itrPtr++;
}
*itrPtr = '.';
/* truncate trailing zeros, except the one after '.' */
startPtr = itrPtr + 1;
itrPtr = uprv_strchr(startPtr, 0);
while(--itrPtr > startPtr){
if(*itrPtr == '0'){
*itrPtr = 0;
}else{
break;
}
}
return buffer;
}
/*Takes a int32_t and fills in a UChar* string with that number "radix"-based
* and padded with "pad" zeroes
*/
#define MAX_DIGITS 10
U_CAPI int32_t U_EXPORT2
uprv_itou (UChar * buffer, uint32_t i, uint32_t radix, int32_t pad)
{
int32_t length = 0;
int32_t num = 0;
int digit;
int32_t j;
UChar temp;
do{
digit = (int)(i % radix);
buffer[length++]=(UChar)(digit<=9?(0x0030+digit):(0x0030+digit+7));
i=i/radix;
} while(i);
while (length < pad){
buffer[length++] = (UChar) 0x0030;/*zero padding */
}
/* null terminate the buffer */
if(length<MAX_DIGITS){
buffer[length] = (UChar) 0x0000;
}
num= (pad>=length) ? pad :length;
/* Reverses the string */
for (j = 0; j < (num / 2); j++){
temp = buffer[(length-1) - j];
buffer[(length-1) - j] = buffer[j];
buffer[j] = temp;
}
return length;
}