68 lines
1,016 B
C
68 lines
1,016 B
C
/* $Header$ */
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#ifndef NOFLOAT
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extern char *fcvt();
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extern char *ecvt();
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char *
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_pfloat(r,s,n,b)
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double r;
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register char *s;
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{
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register char *s1;
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int sign,dp;
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register int i;
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if (b == 0)
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n = 6;
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s1 = fcvt(r,n,&dp,&sign);
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if (sign)
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*s++ = '-';
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if (dp<=0)
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*s++ = '0';
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for (i=dp; i>0; i--)
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if (*s1) *s++ = *s1++;
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else *s++ = '0';
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if ((i=n) > 0)
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*s++ = '.';
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while (++dp <= 0) {
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if (--i<0)
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break;
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*s++ = '0';
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}
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while (--i >= 0)
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if (*s1) *s++ = *s1++;
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else *s++ = '0';
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return(s);
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}
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char *_pscien(r,s,n,b) float r; register char *s; {
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int sign,dp;
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register char *s1;
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if (b == 0)
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n = 7;
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else n += 1;
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s1 = ecvt(r,n,&dp,&sign);
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if (sign)
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*s++ = '-';
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*s++ = *s1++;
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*s++ = '.';
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while (--n>0)
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if (*s1) *s++ = *s1++;
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else *s++ = '0';
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*s++ = 'e';
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if ( r ) --dp ;
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if ( dp<0 ) {
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*s++ = '-' ; dp= -dp ;
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} else {
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*s++ = '+' ;
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}
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if (dp >= 100) {
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*s++ = '0' + (dp / 100);
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dp %= 100;
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}
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*s++ = '0' + (dp/10);
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*s++ = '0' + (dp%10);
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return(s);
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}
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#endif
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