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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | /* Project: OSLib |
| 2 | * Description: The OS Construction Kit |
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| 3 | * Date: 1.6.2000 |
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| 4 | * Idea by: Luca Abeni & Gerardo Lamastra |
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| 5 | * |
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| 6 | * OSLib is an SO project aimed at developing a common, easy-to-use |
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| 7 | * low-level infrastructure for developing OS kernels and Embedded |
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| 8 | * Applications; it partially derives from the HARTIK project but it |
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| 9 | * currently is independently developed. |
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| 10 | * |
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| 11 | * OSLib is distributed under GPL License, and some of its code has |
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| 12 | * been derived from the Linux kernel source; also some important |
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| 13 | * ideas come from studying the DJGPP go32 extender. |
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| 14 | * |
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| 15 | * We acknowledge the Linux Community, Free Software Foundation, |
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| 16 | * D.J. Delorie and all the other developers who believe in the |
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| 17 | * freedom of software and ideas. |
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| 18 | * |
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| 19 | * For legalese, check out the included GPL license. |
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| 20 | */ |
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| 21 | |||
| 22 | #include <ll/i386/stdlib.h> |
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| 23 | #include <ll/i386/string.h> |
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| 24 | #include <ll/i386/limits.h> |
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| 25 | #include <ll/i386/float.h> |
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| 26 | #include <ll/i386/mem.h> |
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| 27 | #include <ll/stdarg.h> |
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| 28 | #include <ll/ctype.h> |
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| 29 | #include <ll/math.h> |
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| 30 | #include "sprintf.h" |
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| 31 | |||
| 32 | FILE(ucvt); |
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| 33 | |||
| 34 | unsigned ucvt(unsigned long v,char *buffer,int base,int width,int flag) |
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| 35 | { |
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| 36 | register int i = 0,j; |
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| 37 | unsigned ret = 0,abs_base; |
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| 38 | unsigned long abs_v; |
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| 39 | char tmp[12]; |
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| 40 | /* Extract the less significant digit */ |
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| 41 | /* Put it into temporary buffer */ |
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| 42 | /* It has to be local to have */ |
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| 43 | /* reentrant functions */ |
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| 44 | /* |
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| 45 | MG: fix to handle zero correctly |
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| 46 | if (v == 0) { |
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| 47 | *buffer++ = '0'; |
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| 48 | *buffer = 0; |
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| 49 | return(1); |
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| 50 | } |
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| 51 | */ |
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| 52 | |||
| 53 | /* MG: is this required? */ |
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| 54 | /* the vsprintf() function seems to call this procedure with */ |
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| 55 | /* this flag inverted */ |
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| 56 | flag ^= LEFT_PAD; |
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| 57 | |||
| 58 | abs_base = (base >= 0) ? base : -base; |
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| 59 | if (base < 0) abs_v = ((long)(v) < 0) ? -v : v; |
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| 60 | else abs_v = v; |
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| 61 | /* Process left space-padding flags */ |
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| 62 | if (flag & ADD_PLUS || ((base < 0) && ((long)(v) < 0))) { |
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| 63 | ret++; |
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| 64 | } |
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| 65 | /* MG: fix to handle zero correctly */ |
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| 66 | if (v == 0) |
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| 67 | tmp[i++]='0'; |
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| 68 | else |
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| 69 | while (abs_v > 0) { |
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| 70 | tmp[i++] = todigit(abs_v % abs_base); |
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| 71 | abs_v = abs_v / abs_base; |
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| 72 | } |
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| 73 | ret += i; |
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| 74 | if ((flag & LEFT_PAD) && (flag & SPACE_PAD)) { |
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| 75 | j = ret; |
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| 76 | while (j < width) { |
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| 77 | *buffer++ = ' '; |
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| 78 | ret++; |
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| 79 | j++; |
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| 80 | } |
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| 81 | } |
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| 82 | /* Add plus if wanted */ |
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| 83 | if (base < 0) { |
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| 84 | if (((long)(v)) < 0) *buffer++ = '-'; |
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| 85 | else if (flag & ADD_PLUS) *buffer++ = '+'; |
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| 86 | } else if (flag & ADD_PLUS) *buffer++ = '+'; |
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| 87 | /* Process left zero-padding flags */ |
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| 88 | if ((flag & LEFT_PAD) && (flag & ZERO_PAD)) { |
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| 89 | j = ret; |
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| 90 | while (j < width) { |
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| 91 | *buffer++ = '0'; |
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| 92 | ret++; |
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| 93 | j++; |
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| 94 | } |
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| 95 | } |
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| 96 | /* Reverse temporary buffer into output buffer */ |
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| 97 | /* If wanted left pad with zero/space; anyway only one at once is ok */ |
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| 98 | for (j = i-1; j >= 0; j--) *buffer++ = tmp[j]; |
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| 99 | if ((flag & (SPACE_PAD)) && !(flag & LEFT_PAD)) { |
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| 100 | /* If wanted, pad with space to specified width */ |
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| 101 | j = ret; |
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| 102 | while (j < width) { |
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| 103 | *buffer++ = ' '; |
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| 104 | ret++; |
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| 105 | j++; |
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| 106 | } |
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| 107 | } |
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| 108 | /* Null terminate the output buffer */ |
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| 109 | *buffer = 0; |
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| 110 | return(ret); |
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| 111 | } |
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| 112 | |||
| 113 | unsigned dcvt(long v,char *buffer,int base,int width,int flag) |
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| 114 | { |
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| 115 | return(ucvt((unsigned long)(v),buffer,-base,width,flag)); |
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| 116 | } |