forked from KolibriOS/kolibrios
229 lines
4.0 KiB
C++
229 lines
4.0 KiB
C++
#include "kosSyst.h"
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#include "func.h"
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#include <stdarg.h>
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//////////////////////////////////////////////////////////////////////
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//
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// âûâîä ñòðîêè íà ïå÷àòü. barsuk äîáàâèë %f
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//#define PREC 2
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//#define HALF 0.499
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#define PREC 6
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#define HALF 0.4999999
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static double double_tab[]={1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 1e11, 1e12, 1e13, 1e14, 1e15,
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1e16, 1e17, 1e18, 1e19, 1e20, 1e21, 1e22, 1e23, 1e24, 1e25, 1e26, 1e27, 1e28, 1e29, 1e30};
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//
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static Dword dectab[] = { 1000000000, 100000000, 10000000, 1000000, 100000,
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10000, 1000, 100, 10, 0 };
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//
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void sprintf( char *Str, char* Format, ... )
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{
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int i, fmtlinesize, j, k, flag;
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Dword head, tail;
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char c;
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va_list arglist;
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//
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va_start(arglist, Format);
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//
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fmtlinesize = strlen( Format );
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//
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if( fmtlinesize == 0 ) return;
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//
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for( i = 0, j = 0; i < fmtlinesize; i++ )
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{
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//
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c = Format[i];
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//
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if( c != '%' )
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{
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Str[j++] = c;
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continue;
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}
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//
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i++;
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//
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if( i >= fmtlinesize ) break;
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//
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flag = 0;
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//
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c = Format[i];
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//
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switch( c )
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{
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//
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case '%':
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Str[j++] = c;
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break;
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// âûâîä ñòðîêè
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case 'S':
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Byte* str;
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str = va_arg(arglist, Byte*);
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for( k = 0; ( c = str[k] ) != 0; k++ )
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{
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Str[j++] = c;
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}
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break;
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// âûâîä áàéòà
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case 'B':
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k = va_arg(arglist, int) & 0xFF;
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Str[j++] = num2hex( ( k >> 4 ) & 0xF );
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Str[j++] = num2hex( k & 0xF );
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break;
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// âûâîä ñèìâîëà
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case 'C':
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Str[j++] = va_arg(arglist, int) & 0xFF;
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break;
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// âûâîä äâîéíîãî ñëîâà â øåñòíàäöàòèðè÷íîì âèäå
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case 'X':
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Dword val;
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val = va_arg(arglist, Dword);
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for( k = 7; k >= 0; k-- )
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{
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//
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c = num2hex ( ( val >> (k * 4) ) & 0xF );
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//
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if( c == '0' )
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{
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if( flag ) Str[j++] = c;
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}
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else
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{
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flag++;
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Str[j++] = c;
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}
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}
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//
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if( flag == 0 ) Str[j++] = '0';
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break;
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// âûâîä äâîéíîãî ñëîâà â äåñÿòè÷íîì âèäå
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case 'U':
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head = va_arg(arglist, Dword);
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tail = 0;
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for( k = 0; dectab[k] != 0; k++ )
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{
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tail = head % dectab[k];
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head /= dectab[k];
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c = head + '0';
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if( c == '0' )
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{
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if( flag ) Str[j++] = c;
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}
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else
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{
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flag++;
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Str[j++] = c;
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}
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//
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head = tail;
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}
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//
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c = head + '0';
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Str[j++] = c;
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break;
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// âåùåñòâåííîå ÷èñëî â ôîðìàòå 7.2
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case 'f':
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case 'F':
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case 'g':
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case 'G':
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{
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double val, w;
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int p;
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val = va_arg(arglist, double);
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if (val < 0.0)
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{
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Str[j++] = '-';
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val = -val;
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}
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for (k = 0; k < 30; k++)
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if (val < double_tab[k])
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break;
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if (val < 1.0)
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{
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Str[j++] = '0';
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}
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for (p = 1; p < k + 1; p++)
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{
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int d = (int)di(val / double_tab[k - p] - HALF) % 10;
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Str[j++] = '0' + d;
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val -= d * double_tab[k - p];
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}
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Str[j++] = '.';
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w = 0.1;
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for (p = 0; p < PREC - 1; p++)
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{
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val-=floor(val);
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Str[j++] = '0' + di(val / w - HALF) % 10;
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w /= 10.0;
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}
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}
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break;
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// âûâîä 64-áèòíîãî ñëîâà â øåñòíàäöàòèðè÷íîì âèäå
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case 'Q':
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unsigned int low_dword, high_dword;
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low_dword = va_arg(arglist, unsigned int);
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high_dword = va_arg(arglist, unsigned int);
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for( k = 7; k >= 0; k-- )
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{
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//
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c = num2hex ( ( ( high_dword + 1) >> (k * 4) ) & 0xF );
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//
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if( c == '0' )
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{
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if( flag ) Str[j++] = c;
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}
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else
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{
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flag++;
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Str[j++] = c;
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}
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}
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//
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for( k=7; k >= 0; k-- )
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{
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//
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c = num2hex ( ( low_dword >> (k * 4) ) & 0xF );
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//
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if( c == '0' )
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{
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if( flag ) Str[j++] = c;
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}
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else
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{
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flag++;
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Str[j++] = c;
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}
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}
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//
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if( flag == 0 ) Str[j++] = '0';
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//
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break;
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//
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default:
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break;
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}
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}
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//
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Str[j] = 0;
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}
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char *ftoa(double d)
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{
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char buffer[256], *p;
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sprintf(buffer, "%f", d);
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p = (char*)allocmem(strlen(buffer)+1);
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strcpy(p, buffer);
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return p;
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}
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