projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| d2923a7f SL |
1 | /* @(#)mout.c 4.1 %G% */ |
| 2 | ||
| 3 | #include <stdio.h> | |
| 4 | #include <mp.h> | |
| 5 | m_in(a,b,f) MINT *a; FILE *f; | |
| 6 | { MINT x,y,ten; | |
| 7 | int sign,c; | |
| 8 | short qten,qy; | |
| 9 | xfree(a); | |
| 10 | sign=1; | |
| 11 | ten.len=1; | |
| 12 | ten.val= &qten; | |
| 13 | qten=b; | |
| 14 | x.len=0; | |
| 15 | y.len=1; | |
| 16 | y.val= &qy; | |
| 17 | while((c=getc(f))!=EOF) | |
| 18 | switch(c) | |
| 19 | { | |
| 20 | case '\\': getc(f); | |
| 21 | continue; | |
| 22 | case '\t': | |
| 23 | case '\n': a->len *= sign; | |
| 24 | xfree(&x); | |
| 25 | return(0); | |
| 26 | case ' ': | |
| 27 | continue; | |
| 28 | case '-': sign = -sign; | |
| 29 | continue; | |
| 30 | default: if(c>='0' && c<= '9') | |
| 31 | { qy=c-'0'; | |
| 32 | mult(&x,&ten,a); | |
| 33 | madd(a,&y,a); | |
| 34 | move(a,&x); | |
| 35 | continue; | |
| 36 | } | |
| 37 | else | |
| 38 | { VOID ungetc(c,stdin); | |
| 39 | a->len *= sign; | |
| 40 | return(0); | |
| 41 | } | |
| 42 | } | |
| 43 | return(EOF); | |
| 44 | } | |
| 45 | m_out(a,b,f) MINT *a; FILE *f; | |
| 46 | { int sign,xlen,i; | |
| 47 | short r; | |
| 48 | MINT x; | |
| 49 | char *obuf; | |
| 50 | register char *bp; | |
| 51 | sign=1; | |
| 52 | xlen=a->len; | |
| 53 | if(xlen<0) | |
| 54 | { xlen= -xlen; | |
| 55 | sign= -1; | |
| 56 | } | |
| 57 | if(xlen==0) | |
| 58 | { fprintf(f,"0\n"); | |
| 59 | return; | |
| 60 | } | |
| 61 | x.len=xlen; | |
| 62 | x.val=xalloc(xlen,"m_out"); | |
| 63 | for(i=0;i<xlen;i++) x.val[i]=a->val[i]; | |
| 64 | obuf=(char *)malloc(7*xlen); | |
| 65 | bp=obuf+7*xlen-1; | |
| 66 | *bp--=0; | |
| 67 | while(x.len>0) | |
| 68 | { for(i=0;i<10&&x.len>0;i++) | |
| 69 | { sdiv(&x,b,&x,&r); | |
| 70 | *bp--=r+'0'; | |
| 71 | } | |
| 72 | if(x.len>0) *bp--=' '; | |
| 73 | } | |
| 74 | if(sign==-1) *bp--='-'; | |
| 75 | fprintf(f,"%s\n",bp+1); | |
| 76 | free(obuf); | |
| 77 | FREE(x) | |
| 78 | return; | |
| 79 | } | |
| 80 | sdiv(a,n,q,r) MINT *a,*q; short *r; | |
| 81 | { MINT x,y; | |
| 82 | int sign; | |
| 83 | sign=1; | |
| 84 | x.len=a->len; | |
| 85 | x.val=a->val; | |
| 86 | if(n<0) | |
| 87 | { sign= -sign; | |
| 88 | n= -n; | |
| 89 | } | |
| 90 | if(x.len<0) | |
| 91 | { sign = -sign; | |
| 92 | x.len= -x.len; | |
| 93 | } | |
| 94 | s_div(&x,n,&y,r); | |
| 95 | xfree(q); | |
| 96 | q->val=y.val; | |
| 97 | q->len=sign*y.len; | |
| 98 | *r = *r*sign; | |
| 99 | return; | |
| 100 | } | |
| 101 | s_div(a,n,q,r) MINT *a,*q; short *r; | |
| 102 | { int qlen,i; | |
| 103 | long int x; | |
| 104 | short *qval; | |
| 105 | x=0; | |
| 106 | qlen=a->len; | |
| 107 | qval=xalloc(qlen,"s_div"); | |
| 108 | for(i=qlen-1;i>=0;i--) | |
| 109 | { | |
| 110 | x=x*0100000L+a->val[i]; | |
| 111 | qval[i]=x/n; | |
| 112 | x=x%n; | |
| 113 | } | |
| 114 | *r=x; | |
| 115 | if(qval[qlen-1]==0) qlen--; | |
| 116 | q->len=qlen; | |
| 117 | q->val=qval; | |
| 118 | if(qlen==0) shfree(qval); | |
| 119 | return; | |
| 120 | } | |
| 121 | min(a) MINT *a; | |
| 122 | { | |
| 123 | return(m_in(a,10,stdin)); | |
| 124 | } | |
| 125 | omin(a) MINT *a; | |
| 126 | { | |
| 127 | return(m_in(a,8,stdin)); | |
| 128 | } | |
| 129 | mout(a) MINT *a; | |
| 130 | { | |
| 131 | m_out(a,10,stdout); | |
| 132 | } | |
| 133 | omout(a) MINT *a; | |
| 134 | { | |
| 135 | m_out(a,8,stdout); | |
| 136 | } | |
| 137 | fmout(a,f) MINT *a; FILE *f; | |
| 138 | { m_out(a,10,f); | |
| 139 | } | |
| 140 | fmin(a,f) MINT *a; FILE *f; | |
| 141 | { | |
| 142 | return(m_in(a,10,f)); | |
| 143 | } |