shithub: scc

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Add post increment and pre increment

--- a/cc.h

+++ b/cc.h

@@ -213,7 +213,8 @@

 typedef void (*Inst)(Node *);

 enum {

-	OCAST, OPTR, OADD, OARY, OSIZE, OMUL, OSUB

+	OCAST, OPTR, OADD, OARY, OSIZE, OMUL, OSUB,

+	OINC, ODEC, OPINC, OPDEC

 };

 extern void

--- a/code.c

+++ b/code.c

@@ -8,6 +8,10 @@

 	[OADD] = "+",

 	[OMUL] = "*",

 	[OARY] = "'",

+	[OINC] = ":+",

+	[ODEC] = ":-",

+	[OPINC] = ";+",

+	[OPDEC] =  ";=",

 	[OSIZE] = "#",

 	[OPTR] = "@"

 };

--- a/expr.c

+++ b/expr.c

@@ -139,6 +139,7 @@

 postfix(void)

 {

 	Node *np1, *np2;

+	char op;

 	np1 = primary();

 	for (;;) {

@@ -148,6 +149,12 @@

 			np2 = expr();

 			np1 = array(np1, np2);

 			expect(']');

+			break;

+		case DEC:	 case INC:

+			op = (yytoken == INC) ? OPINC : OPDEC;

+			/* TODO: check that the the base type is a complete type */

+			np1 = unarycode(op, np1->type, np1);

+			next();

 			break;

 		default:

 			return np1;