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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4973 | right-hear | 1 | /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ |
| 2 | #include |
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| 3 | #include |
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| 4 | |||
| 5 | char * |
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| 6 | itoa(int value, char *string, int radix) |
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| 7 | { |
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| 8 | char tmp[33]; |
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| 9 | char *tp = tmp; |
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| 10 | int i; |
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| 11 | unsigned v; |
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| 12 | int sign; |
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| 13 | char *sp; |
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| 14 | |||
| 15 | if (radix > 36 || radix <= 1) |
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| 16 | { |
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| 17 | errno = EDOM; |
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| 18 | return 0; |
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| 19 | } |
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| 20 | |||
| 21 | sign = (radix == 10 && value < 0); |
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| 22 | if (sign) |
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| 23 | v = -value; |
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| 24 | else |
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| 25 | v = (unsigned)value; |
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| 26 | while (v || tp == tmp) |
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| 27 | { |
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| 28 | i = v % radix; |
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| 29 | v = v / radix; |
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| 30 | if (i < 10) |
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| 31 | *tp++ = i+'0'; |
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| 32 | else |
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| 33 | *tp++ = i + 'a' - 10; |
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| 34 | } |
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| 35 | |||
| 36 | if (string == 0) |
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| 37 | string = (char *)malloc((tp-tmp)+sign+1); |
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| 38 | sp = string; |
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| 39 | |||
| 40 | if (sign) |
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| 41 | *sp++ = '-'; |
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| 42 | while (tp > tmp) |
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| 43 | *sp++ = *--tp; |
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| 44 | *sp = 0; |
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| 45 | return string; |
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| 46 | } |