shithub: scc

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Implement comma operator

This operator was recognized but was not implemented

--- a/cc.h

+++ b/cc.h

@@ -224,6 +224,7 @@

 	OBAND, OBXOR, OBOR, OASSIGN, OA_MUL, OA_DIV,

 	OA_MOD, OA_ADD, OA_SUB, OA_SHL, OA_SHR,

 	OA_AND, OA_XOR, OA_OR, OADDR,ONEG, OCPL, OEXC,

+	OCOMMA,

 	/*

 	  * Complementary relational operators only differ in less

 	 * significant bit

--- a/code.c

+++ b/code.c

@@ -43,7 +43,8 @@

 	[ONEG] = "_",

 	[OCPL] = "~",

 	[OAND] = "m",

-	[OOR] = "s"

+	[OOR] = "s",

+	[OCOMMA] = ","

 };

 Node *

--- a/expr.c

+++ b/expr.c

@@ -707,10 +707,13 @@

 Node *

 expr(void)

 {

-	register Node *np;

+	register Node *np1, *np2;

-	do

-		np = assign();

-	while (yytoken == ',');

-	return np;

+	np1 = assign();

+	while (accept(',')) {

+		np2 = assign();

+		np1 = bincode(OCOMMA, np2->type, np1, np2);

+	}

+

+	return np1;

 }

-- 

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