home *** CD-ROM | disk | FTP | other *** search
- #include "rtt.h"
-
- int n_tmp_str = 0;
- int n_tmp_cset = 0;
- struct sym_entry *params = NULL;
-
- /*
- * clr_def - clear any information related to definitions.
- */
- novalue clr_def()
- {
- struct sym_entry *sym;
-
- n_tmp_str = 0;
- n_tmp_cset = 0;
- while (params != NULL) {
- sym = params;
- params = params->u.param_info.next;
- free_sym(sym);
- }
- free_tend();
- if (v_len != NULL)
- free_sym(v_len);
- v_len = NULL;
- il_indx = 0;
- lbl_num = 0;
- abs_ret = SomeType;
- }
-
- /*
- * ttol - convert a token representing an integer constant into a long
- * integer value.
- */
- long ttol(t)
- struct token *t;
- {
- register long i;
- register char *s;
- int base;
-
- s = t->image;
- i = 0;
- base = 10;
-
- if (*s == '0') {
- base = 8;
- ++s;
- if (*s == 'x') {
- base = 16;
- ++s;
- }
- }
- while (*s != '\0') {
- i *= base;
- if (*s >= '0' && *s <= '9')
- i += *s++ - '0';
- else if (*s >= 'a' && *s <= 'f')
- i += *s++ - 'a' + 10;
- else if (*s >= 'A' && *s <= 'F')
- i += *s++ - 'A' + 10;
- }
- return i;
- }
-
- struct token *chk_exct(tok)
- struct token *tok;
- {
- struct sym_entry *sym;
-
- sym = sym_lkup(tok->image);
- if (sym->u.typ_indx != int_typ)
- errt2(tok, "exact conversions do not apply to ", tok->image);
- return tok;
- }
-
- /*
- * icn_typ - convert a type node into a type code for the internal
- * representation of the data base.
- */
- int icn_typ(typ)
- struct node *typ;
- {
- switch (typ->nd_id) {
- case PrimryNd:
- switch (typ->tok->tok_id) {
- case Any_value:
- return TypAny;
- case Empty_type:
- return TypEmpty;
- case Variable:
- return TypVar;
- case C_Integer:
- return TypCInt;
- case C_Double:
- return TypCDbl;
- case C_String:
- return TypCStr;
- case Tmp_string:
- return TypTStr;
- case Tmp_cset:
- return TypTCset;
- }
-
- case SymNd:
- return typ->u[0].sym->u.typ_indx;
-
- default: /* must be exact conversion */
- if (typ->tok->tok_id == C_Integer)
- return TypECInt;
- else /* integer */
- return TypEInt;
- }
- }
-
-