| 1 | #include "apl.h" |
| 2 | |
| 3 | ex_base() |
| 4 | { |
| 5 | register struct item *p, *q; |
| 6 | int s, s1; |
| 7 | data d, d1; |
| 8 | double r, b; |
| 9 | |
| 10 | p = fetch2(); |
| 11 | q = sp[-2]; |
| 12 | if(p->rank > 1 || q->rank > 1) |
| 13 | error("base R"); |
| 14 | b = 1.; |
| 15 | r = 0.; |
| 16 | s = p->size; |
| 17 | s1 = q->size; |
| 18 | while(s > 0 || s1 > 0) { |
| 19 | if(s > 0) { |
| 20 | s--; |
| 21 | p->index = s; |
| 22 | d = getdat(p); |
| 23 | } |
| 24 | if(s1 > 0) { |
| 25 | s1--; |
| 26 | q->index = s1; |
| 27 | d1 = getdat(q); |
| 28 | } |
| 29 | r += d1 * b; |
| 30 | b *= d; |
| 31 | } |
| 32 | pop(); |
| 33 | pop(); |
| 34 | p = newdat(DA, 0, 1); |
| 35 | push(p); |
| 36 | d = r; |
| 37 | putdat(p, d); |
| 38 | } |
| 39 | |
| 40 | ex_rep() |
| 41 | { |
| 42 | register struct item *p, *q; |
| 43 | register s; |
| 44 | double a, b, r; |
| 45 | |
| 46 | p = fetch2(); |
| 47 | q = sp[-2]; |
| 48 | if(q->size != 1 || p->rank > 1) |
| 49 | error("represent R"); |
| 50 | r = getdat(q); |
| 51 | s = p->size; |
| 52 | while(s > 0) { |
| 53 | s--; |
| 54 | p->index = s; |
| 55 | b = getdat(p); |
| 56 | if(b == 0.) |
| 57 | error("represent D"); |
| 58 | r /= b; |
| 59 | a = r; |
| 60 | r = floor(r); |
| 61 | datum = (a - r) * b; |
| 62 | p->index = s; |
| 63 | putdat(p, datum); |
| 64 | } |
| 65 | sp--; |
| 66 | pop(); |
| 67 | push(p); |
| 68 | } |