scc

commit e888ffdaf5a6a7aee73253cc982847e72be0bd94
parent a100cd930fb84e4e0e1d3dc3c24d3bddd28eb4f0
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Mon, 11 Aug 2014 23:33:45 +0200

Add unary operators '-' and '~'

Diffstat:
M
cc2/cc2.h
 | 
2
++
M
cc2/cgen.c
 | 
2
++
M
cc2/parser.c
 | 
2
++

3 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/cc2/cc2.h b/cc2/cc2.h
@@ -86,6 +86,8 @@ enum nerrors {
 #define ONE       '!'
 #define OOR       'o'
 #define OAND      'y'
+#define ONEG      '_'
+#define OCPL      '~'
 
 extern void error(unsigned nerror, ...);
 extern void genaddable(Node *list[]);
diff --git a/cc2/cgen.c b/cc2/cgen.c
@@ -124,6 +124,7 @@ xcgen(Node *np)
 	}
 
 	switch (np->op) {
+	case ONEG:   case OCPL:
 	case OOR:    case OAND:
 	case OPTR:   case OADDR:
 	case OINC:
@@ -195,6 +196,7 @@ xaddable(Node *np)
 	case CONST:
 		np->addable = 20;
 		break;
+	case ONEG:   case OCPL:
 	case OPTR:   case OADDR:
 		xaddable(lp);
 		break;
diff --git a/cc2/parser.c b/cc2/parser.c
@@ -302,6 +302,8 @@ static void (*optbl[])(char *) = {
 	['!'] = operator,
 	['y'] = operator,
 	['o'] = operator,
+	['_'] = unary,
+	['~'] = unary,
 	['\177'] = NULL
 };