Warn about unreachable empty compound statements.

[cparser] / lexer.c

diff --git a/lexer.c b/lexer.c
index 9b6d369..f1b00e3 100644 (file)
--- a/lexer.c
+++ b/lexer.c
@@ -752,7 +752,7 @@ static int parse_escape_sequence(void)
        int ec = c;
        next_char();
 
-       switch(ec) {
+       switch (ec) {
        case '"':  return '"';
        case '\'': return '\'';
        case '\\': return '\\';
@@ -778,6 +778,10 @@ static int parse_escape_sequence(void)
        case EOF:
                parse_error("reached end of file while parsing escape sequence");
                return EOF;
+       case 'e':
+               if (c_mode & _GNUC)
+                       return 27;   /* hopefully 27 is ALWAYS the code for ESACAPE */
+               /*fallthrough*/
        default:
                parse_error("unknown escape sequence");
                return EOF;