scc

commit a0d198a1bfef04690021893794afc3e22de38946
parent 04b94d81004857b6f21a15622001bb8c8996d9c5
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Mon, 16 Jan 2017 16:34:18 +0100

[cc1] Add more comments about macro expansion and EOF

Diffstat:
M
cc1/lex.c
 | 
7
++++++-

1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/cc1/lex.c b/cc1/lex.c
@@ -128,7 +128,7 @@ delinput(void)
 		--hide->hide;
 		/*
 		 * If the symbol is not declared then it was
-		 * an extension due to a #if directive with
+		 * an expansion due to a #if directive with
 		 * a non declared symbol (expanded to 0),
 		 * thus we have to kill the symbol
 		 */
@@ -648,6 +648,11 @@ repeat:
 		return;
 
 	if (lexmode == CPPMODE) {
+		/*
+		 * If we are in cpp mode, we only return eof when
+		 * we don't have more inputs, or when the next
+		 * next input is from a file
+		 */
 		if (!input || !input->next || !input->next->fp)
 			return;
 	}