/******************************************************
整形数据转字符串函数
char *itoa(int value, char *string, int radix)
radix=10 标示是10进制 非十进制，转换结果为0;
例：d=-379;
执行 itoa(d, buf, 10); 后
buf="-379"
**********************************************************/
char *itoa(int value, char *string, int radix)
{
int i, d;
int flag = 0;
char *ptr = string;
/* This implementation only works for decimal numbers. */
if (radix != 10)
{
*ptr = 0;
return string;
}
if (!value)
{
*ptr++ = 0x30;
*ptr = 0;
return string;
}
/* if this is a negative value insert the minus sign. */
if (value < 0)
{
*ptr++ = '-';
/* Make the value positive. */
value *= -1;
}
for (i = 10000; i > 0; i /= 10)
{
d = value / i;
if (d || flag)
{
*ptr++ = (char)(d + 0x30);
value -= (d * i);
flag = 1;
}
}
/* Null terminate the string. */
*ptr = 0;
return string;
} /* NCL_Itoa */
