scan: Add `::` operator

This is needed for attributes, added in C2X (n2335).

3 files changed, 6 insertions, 1 deletions

diff --git a/cc.h b/cc.h
index 9b0989e..4054dcd 100644
--- a/cc.h
+++ b/cc.h
@@ -93,6 +93,7 @@ enum tokenkind {
 	TLOR,
 	TQUESTION,
 	TCOLON,
+	TCOLONCOLON,
 	TSEMICOLON,
 	TELLIPSIS,
 	TASSIGN,
diff --git a/scan.c b/scan.c
index 489b599..5464cde 100644
--- a/scan.c
+++ b/scan.c
@@ -367,7 +367,10 @@ again:
 		return TQUESTION;
 	case ':':
 		nextchar(s);
-		return TCOLON;
+		if (s->chr != ':')
+			return TCOLON;
+		nextchar(s);
+		return TCOLONCOLON;
 	case ';':
 		nextchar(s);
 		return TSEMICOLON;
diff --git a/token.c b/token.c
index 5e1a977..da5d597 100644
--- a/token.c
+++ b/token.c
@@ -92,6 +92,7 @@ const char *tokstr[] = {
 	[TLOR] = "||",
 	[TQUESTION] = "?",
 	[TCOLON] = ":",
+	[TCOLONCOLON] = "::",
 	[TSEMICOLON] = ";",
 	[TELLIPSIS] = "...",
 	[TASSIGN] = "=",