scc

commit 30a652a5b0a4e6c240fc897f2445d59947c1e789
parent 7ae2f8e3d575dd2e918c3b389779415e63902d8b
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Thu,  9 Feb 2012 11:24:13 +0100

Added fields for basic types

These new fields in the type structure allow know the properties of the basic
type without doing complex comparision

Diffstat:
M
types.c
 | 
24
++++++++++++++++--------
M
types.h
 | 
8
++++++--

2 files changed, 22 insertions(+), 10 deletions(-)
diff --git a/types.c b/types.c
@@ -2,18 +2,26 @@
 #include <assert.h>
 #include <stdlib.h>
 
+#include "tokens.h"
 #include "types.h"
 
-#define xcalloc calloc
 
-struct type tschar, tuchar;             /* signed char, unsigned char */
-struct type tshort, tushort;            /* short,  unsigned short */
-struct type tint, tuint;                /* int,  unsigned int */
-struct type tfloat, tdouble, tldouble;	/* float, double, long double */
-struct type tlong, tulong;		/* long, unsgined long */
-struct type tllong, tullong;		/* long long, unsigned long long */
-struct type tvoid;			/* void */
+#define xcalloc calloc
 
+struct type tschar = {.btype = CHAR, .sign = 1};
+struct type tuchar = {.btype = CHAR, .sign = 0};
+struct type tshort = {.btype = SHORT, .sign = 1};
+struct type tushort = {.btype = SHORT, .sign = 0};
+struct type tint = {.btype = INT, .sign = 1};
+struct type tuint = {.btype = SHORT, .sign = 0};
+struct type tfloat = {.btype = FLOAT, .sign = 1};
+struct type tdouble = {.btype = DOUBLE, .sign = 1};
+struct type tldouble = {.btype = LDOUBLE, .sign = 1};
+struct type tlong = {.btype = LONG, .sign = 1};
+struct type tulong = {.btype = LONG, .sign = 0};
+struct type tllong = {.btype = LLONG, .sign = 1};
+struct type tullong = {.btype = LLONG, .sign = 0};
+struct type tvoid = {.btype = VOID, .sign = 0};
 
 struct type *mktype(register struct type *base, unsigned  char op)
 {
diff --git a/types.h b/types.h
@@ -9,8 +9,12 @@ struct type {
 	struct type *ptr;		/* pointer */
 	struct type *ftn;		/* function */
 	union  {
-		size_t nelem;
-	} u;
+		struct {
+			unsigned btype : 4;
+			unsigned sign : 1;
+		};
+		size_t nelem;		      /* size of array */
+	};
 };