shithub: scc

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Add unary operators '-' and '~'

--- a/cc2/cc2.h

+++ b/cc2/cc2.h

@@ -86,6 +86,8 @@

 #define ONE       '!'

 #define OOR       'o'

 #define OAND      'y'

+#define ONEG      '_'

+#define OCPL      '~'

 extern void error(unsigned nerror, ...);

 extern void genaddable(Node *list[]);

--- a/cc2/cgen.c

+++ b/cc2/cgen.c

@@ -124,6 +124,7 @@

 	}

 	switch (np->op) {

+	case ONEG:   case OCPL:

 	case OOR:    case OAND:

 	case OPTR:   case OADDR:

 	case OINC:

@@ -195,6 +196,7 @@

 	case CONST:

 		np->addable = 20;

 		break;

+	case ONEG:   case OCPL:

 	case OPTR:   case OADDR:

 		xaddable(lp);

 		break;

--- a/cc2/parser.c

+++ b/cc2/parser.c

@@ -302,6 +302,8 @@

 	['!'] = operator,

 	['y'] = operator,

 	['o'] = operator,

+	['_'] = unary,

+	['~'] = unary,

 	['\177'] = NULL

 };