1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/*-------------------------------------------------------------------------
integer to string conversion
Written by: Bela Torok, 1999
bela.torok@kssg.ch
usage:
uitoa(unsigned int value, char* string, int radix)
itoa(int value, char* string, int radix)
value -> Number to be converted
string -> Result
radix -> Base of value (e.g.: 2 for binary, 10 for decimal, 16 for hex)
---------------------------------------------------------------------------*/
#define NUMBER_OF_DIGITS 16 /* space for NUMBER_OF_DIGITS + '\0' */
void uitoa(unsigned int value, char* string, int radix)
{
unsigned char index, i;
index = NUMBER_OF_DIGITS;
i = 0;
do {
string[--index] = '0' + (value % radix);
if ( string[index] > '9') string[index] += 'A' - ':'; /* continue with A, B,.. */
value /= radix;
} while (value != 0);
do {
string[i++] = string[index++];
} while ( index < NUMBER_OF_DIGITS );
string[i] = 0; /* string terminator */
}
void itoa(int value, char* string, int radix)
{
if (value < 0 && radix == 10) {
*string++ = '-';
uitoa(-value, string, radix);
}
else {
uitoa(value, string, radix);
}
}
|
