+++ /dev/null
-/* typemod%.c
- *
- * (C) Copyright Apr 15 1995, Edmond J. Breen.
- * ALL RIGHTS RESERVED.
- * This code may be copied for personal, non-profit use only.
- *
- * Type Construction
- */
-#include <stdio.h>
-#include <stdlib.h>
-
-#include <stdarg.h>
-#include "global.h"
-#include "func.h"
-#include "xalloc.h"
-#include "metric.h"
-#include "cdecl.h"
-
-#define crt_type() (type_expr *) xcalloc(sizeof(type_expr), 1)
-#define rtn_type(x) xfree(x)
-
-
-int EiC_gettype(type_expr * t)
-{
- if(t)
- return t->obj;
- else
- return -1;
-}
-void *EiC_getInf(type_expr * t)
-{
- if(t)
- return t->u.inf;
- else
- return NULL;
-
-}
-
-type_expr *EiC_copytype(type_expr * t)
-{
- type_expr *copy = NULL, *h;
- if (t) {
- copy = h = crt_type();
- *h = *t;
- h->alias = 1;
- t = t->nxt;
- while (t) {
- h->nxt = crt_type();
- h = h->nxt;
- *h = *t;
- h->alias = 1;
- t = t->nxt;
- }
- }
- return copy;
-}
-
-type_expr *EiC_copyBaseType(type_expr * t)
-{
- type_expr *copy = NULL, *h;
- while(t && !t->base)
- t = t->nxt;
- if (t) {
- copy = h = crt_type();
- *h = *t;
- h->alias = 1;
- t = t->nxt;
- while (t) {
- h->nxt = crt_type();
- h = h->nxt;
- *h = *t;
- h->alias = 1;
- t = t->nxt;
- }
- }
- return copy;
-}
-
-type_expr *EiC_transtype(type_expr * t)
-{
- type_expr *copy = NULL, *h;
- if (t) {
- copy = h = crt_type();
- *h = *t;
- t = t->nxt;
- while (t) {
- h->nxt = crt_type();
- h = h->nxt;
- *h = *t;
- t = t->nxt;
- }
- }
- return copy;
-}
-
-type_expr *EiC_addtype(unsigned obj, type_expr * t)
-{
- extern int EiC_ptrSafe;
- type_expr *new;
- new = crt_type();
- if (new) {
- new->obj = obj;
- new->nxt = t;
- }
- if(obj == t_pointer) {
- if(EiC_ptrSafe)
- setSafe(new);
- else
- setUnSafe(new);
- }
- return new;
-}
-
-type_expr *EiC_catTypes(type_expr *t1, type_expr * t2)
-{
- type_expr *p;
- p = t1;
- if(p) {
- while(p->nxt)
- p = p->nxt;
- p->nxt = t2;
- return t1;
- }
- return t2;
-}
-
-int compareConst(type_expr * t1, type_expr *t2)
-{
- while (t1 && t2)
- if(!isconst(t1) && isconst(t2))
- return 0;
- else {
- t1 = t1->nxt;
- t2 = t2->nxt;
- }
- return 1;
-}
-
-int EiC_compareSafe(type_expr * t1, type_expr *t2)
-{
- /* compare Safe */
- while (t1 && t2 && (EiC_gettype(t1) == EiC_gettype(t2)))
- if(issafe(t1) != issafe(t2))
- return 0;
- else {
- t1 = t1->nxt;
- t2 = t2->nxt;
- }
- return 1;
-}
-
-
-int EiC_compatibletypes(type_expr *t1, type_expr * t2)
-{
- /* A weaker version of sametypes */
- switch(t1->obj) {
- case t_pointer:
- case t_array: /* do pointers & arrays */
- if(t2->obj != t_pointer && t2->obj != t_array)
- break;
- if (t1->obj == t_pointer && t2->obj == t_pointer)
- if (t1->nxt->obj == t_void ||
- t2->nxt->obj == t_void)
- return 1;
- return EiC_sametypes(t1->nxt, t2->nxt);
- }
- return EiC_sametypes(t1,t2);
-}
-
-int EiC_sametypes(type_expr * t1, type_expr * t2)
-{
- int i;
- switch(t1->obj) {
- case t_struct: /* do structures */
- if (t2->obj != t_struct)
- return 0;
- else {
- struct_t *s1, *s2;
- s1 = (struct_t *) EiC_getInf(t1);
- s2 = (struct_t *) EiC_getInf(t2);
- if(s1 == s2)
- return 1;
- else if (s1->n != s2->n)
- return 0;
- else {
- for (i = 0; i < s1->n; i++) {
- if (!EiC_sametypes(s1->type[i], s2->type[i]))
- return 0;
- if(strcmp(s1->id[i],s2->id[i]) != 0)
- return 0;
- }
- }
- }
- return 1;
- case t_builtin:
- case t_func:
- case t_funcdec: /* check functions are compatible */
- if(t2->obj != t_func && t2->obj != t_funcdec &&
- t2->obj != t_builtin)
- break;
- return EiC_sameFuncs(t1,t2);
- case t_pointer:
- case t_array: /* do pointers & arrays */
- if(t2->obj != t1->obj)
- break;
- if (t1->obj == t_pointer && t2->obj == t_pointer)
- if (t1->nxt->obj == t_void ||
- t2->nxt->obj == t_void)
- return 1;
- return EiC_sametypes(t1->nxt, t2->nxt);
- case t_int:
- case t_enum:
- if(t2->obj == t_int || t2->obj == t_enum)
- return 1;
-
- }
- while (t1 && t2) {
- if (t1->obj != t2->obj)
- break;
- t1 = t1->nxt;
- t2 = t2->nxt;
- }
- if (t1 != t2)
- return 0;
- return 1;
-}
-
-void EiC_setAsBaseType(type_expr * t)
-{
- while (t) {
- t->base = 1;
- t = t->nxt;
- }
-}
-
-int EiC_bastype(type_expr * t)
-{
- while (t && t->nxt)
- t = t->nxt;
- if(t)
- return t->obj;
- else
- return -1;
-}
-static void *basinf(type_expr * t)
-{
- while (t && t->nxt)
- t = t->nxt;
- if(t)
- return t->u.inf;
- else
- return NULL;
-}
-static char basalias(type_expr * t)
-{
- while (t && t->nxt)
- t = t->nxt;
- if(t)
- return t->alias;
- else
- return -1;
-
-}
-void EiC_set_bastype(unsigned t, type_expr * typ)
-{
- while (typ && typ->nxt)
- typ = typ->nxt;
- if(typ)
- typ->obj = t;
-}
-
-void EiC_setaliases(type_expr * t, char a)
-{
- while (t) {
- t->alias = a;
- t = t->nxt;
- }
-}
-
-static void free1type(type_expr * type)
-{
- void EiC_free_func_inf(func_t * f);
- void EiC_free_un_mem(type_expr * e);
-
- if (!type->alias) {
- int t;
- if ((t = EiC_gettype(type)) == t_func || t == t_funcdec
- || t== t_builtin)
- EiC_free_func_inf(EiC_getInf(type));
- else if (t == t_struct || t == t_union)
- EiC_free_un_mem(type);
- }
- rtn_type(type);
-}
-
-
-void *EiC_freetype(type_expr * t)
-{
- type_expr *f;
- if(!t)
- return NULL;
- if (t)
- do {
- f = t->nxt;
- free1type(t);
- t = f;
- } while (t);
- return NULL;
-}
-
-type_expr *EiC_revtype(type_expr * t)
-{
- /*
- * reverse the type list by reversing
- * separate-ably the dec-spec and decl
- * parts.
- * REM decl-spec is the base type(s).
- */
- type_expr *h, *r = NULL;
- if (t) {
- while (t && !t->base) {
- r = EiC_addtype(t->obj, r);
- setInf(r,EiC_getInf(t));
- r->alias = t->alias;
- r->base = t->base;
- r->qual = t->qual;
- h = t->nxt;
- t->alias = 1;
- free1type(t);
- t = h;
- }
- if(r) {
- h = r;
- while(h->nxt)
- h = h->nxt;
- h->nxt = t;
- } else
- r = t;
- }
- return r;
-}
-
-
-
-type_expr *EiC_succType(type_expr * t)
-{
- if (t) {
- type_expr *p;
- p = t->nxt;
- free1type(t);
- return p;
- }
- return t;
-}
-
-void EiC_exchtype(int obj, type_expr * t)
-{
- extern int EiC_ptrSafe;
- t->obj = obj;
- if(obj == t_pointer) {
- if(EiC_ptrSafe)
- setSafe(t);
- else
- setUnSafe(t);
- }
-}
-
-int EiC_get_sizeof(type_expr * t)
-{
- switch (EiC_gettype(t)) {
- case t_uchar:
- case t_char: return EiC_metric[m_char][0];
- case t_short:
- case t_ushort: return EiC_metric[m_short][0];
- case t_enum:
- case t_uint:
- case t_int: return EiC_metric[m_int][0];
- case t_long:
- case t_ulong: return EiC_metric[m_long][0];
- case t_llong: return EiC_metric[m_llong][0];
- case t_float: return EiC_metric[m_float][0];
- case t_double: return EiC_metric[m_double][0];
- case t_lval: return EiC_get_sizeof(t->nxt);
- case t_pointer:
- if(isunsafe(t))
- return EiC_metric[m_pointer][0];
- else
- return sizeof(ptr_t);
- case t_array: return EiC_get_sizeof(t->nxt) * getNumElems(t);
- case t_struct:
- case t_union: return ((struct_t *) EiC_getInf(t))->tsize;
-
- } return 0;
-}
-
-int EiC_get_align(type_expr * t)
-{
- switch (EiC_gettype(t)) {
- case t_uchar:
- case t_char: return EiC_metric[m_char][1];
- case t_short:
- case t_ushort: return EiC_metric[m_short][1];
- case t_uint:
- case t_int: return EiC_metric[m_int][1];
- case t_long:
- case t_ulong: return EiC_metric[m_long][1];
- case t_llong: return EiC_metric[m_llong][1];
- case t_float: return EiC_metric[m_float][1];
- case t_double: return EiC_metric[m_double][1];
- case t_lval: return EiC_get_align(t->nxt);
- case t_pointer:return EiC_metric[m_pointer][1];
- case t_array: return EiC_get_align(t->nxt);
- case t_struct:
- case t_union: return ((struct_t *) EiC_getInf(t))->align;
- }
- return 0;
-}
-
-type_expr *EiC_getcontype(type_expr * t1, type_expr * t2)
-{
- if (t1 == NULL)
- return EiC_copytype(t2);
- else
- return t1;
-}
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projects / opencv / blobdiff