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/* Copyright (c) 1986 Regents of the University of California */ |
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/* Copyright (c) 1991 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#include "calcomp.h" |
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/* bits in argument flag (better be right!) */ |
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#define AFLAGSIZ (8*sizeof(unsigned long)) |
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#define ALISTSIZ 6 /* maximum saved argument list */ |
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typedef struct activation { |
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static ACTIVATION *curact = NULL; |
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extern double libfunc(); |
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static double libfunc(); |
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#define MAXLIB 64 /* maximum number of library functions */ |
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extern double l_if(), l_select(), l_rand(); |
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extern double l_floor(), l_ceil(); |
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static double l_if(), l_select(), l_rand(); |
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static double l_floor(), l_ceil(); |
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#ifdef BIGLIB |
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extern double l_sqrt(); |
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extern double l_sin(), l_cos(), l_tan(); |
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extern double l_asin(), l_acos(), l_atan(), l_atan2(); |
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extern double l_exp(), l_log(), l_log10(); |
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static double l_sqrt(); |
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static double l_sin(), l_cos(), l_tan(); |
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static double l_asin(), l_acos(), l_atan(), l_atan2(); |
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static double l_exp(), l_log(), l_log10(); |
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#endif |
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#ifdef BIGLIB |
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/* functions must be listed alphabetically */ |
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static LIBR library[MAXLIB] = { |
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{ "acos", 1, l_acos }, |
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{ "asin", 1, l_asin }, |
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{ "atan", 1, l_atan }, |
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{ "atan2", 2, l_atan2 }, |
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{ "ceil", 1, l_ceil }, |
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{ "cos", 1, l_cos }, |
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{ "exp", 1, l_exp }, |
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{ "floor", 1, l_floor }, |
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{ "if", 3, l_if }, |
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{ "log", 1, l_log }, |
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{ "log10", 1, l_log10 }, |
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{ "rand", 1, l_rand }, |
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{ "select", 1, l_select }, |
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{ "sin", 1, l_sin }, |
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{ "sqrt", 1, l_sqrt }, |
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{ "tan", 1, l_tan }, |
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{ "acos", 1, ':', l_acos }, |
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{ "asin", 1, ':', l_asin }, |
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{ "atan", 1, ':', l_atan }, |
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{ "atan2", 2, ':', l_atan2 }, |
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{ "ceil", 1, ':', l_ceil }, |
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{ "cos", 1, ':', l_cos }, |
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{ "exp", 1, ':', l_exp }, |
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{ "floor", 1, ':', l_floor }, |
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{ "if", 3, ':', l_if }, |
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{ "log", 1, ':', l_log }, |
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{ "log10", 1, ':', l_log10 }, |
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{ "rand", 1, ':', l_rand }, |
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{ "select", 1, ':', l_select }, |
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{ "sin", 1, ':', l_sin }, |
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{ "sqrt", 1, ':', l_sqrt }, |
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{ "tan", 1, ':', l_tan }, |
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}; |
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static int libsize = 16; |
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#else |
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/* functions must be listed alphabetically */ |
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static LIBR library[MAXLIB] = { |
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{ "ceil", 1, l_ceil }, |
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{ "floor", 1, l_floor }, |
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{ "if", 3, l_if }, |
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{ "rand", 1, l_rand }, |
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{ "select", 1, l_select }, |
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{ "ceil", 1, ':', l_ceil }, |
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{ "floor", 1, ':', l_floor }, |
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{ "if", 3, ':', l_if }, |
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{ "rand", 1, ':', l_rand }, |
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{ "select", 1, ':', l_select }, |
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}; |
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static int libsize = 5; |
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act.name = fname; |
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act.prev = curact; |
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act.ap = a; |
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act.an = (1L<<n)-1; |
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if (n >= AFLAGSIZ) |
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act.an = ~0; |
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else |
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act.an = (1L<<n)-1; |
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act.fun = NULL; |
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curact = &act; |
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} |
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funset(fname, nargs, fptr) /* set a library function */ |
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funset(fname, nargs, assign, fptr) /* set a library function */ |
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char *fname; |
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int nargs; |
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int assign; |
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double (*fptr)(); |
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{ |
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register LIBR *lp; |
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if (strcmp(lp[-1].fname, fname) > 0) { |
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lp[0].fname = lp[-1].fname; |
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lp[0].nargs = lp[-1].nargs; |
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lp[0].atyp = lp[-1].atyp; |
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lp[0].f = lp[-1].f; |
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} else |
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break; |
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libsize++; |
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} |
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lp[0].fname = fname; /* string must be static! */ |
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lp[0].fname = savestr(fname); |
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lp[0].nargs = nargs; |
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lp[0].atyp = assign; |
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lp[0].f = fptr; |
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} |
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quit(1); |
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} |
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/* already computed? */ |
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if (1L<<n & actp->an) |
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if (n < AFLAGSIZ && 1L<<n & actp->an) |
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return(actp->ap[n]); |
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if (actp->fun == NULL || (ep = ekid(actp->fun, n+1)) == NULL) { |
