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(check_newline): Give warning if unrecognized data on #line. 

(yylex): Give error for unterminated string constant.

From-SVN: r8976
This commit is contained in:
Richard Kenner 1995-02-21 05:37:13 -05:00
parent 187366548b
commit 0468bc7566
1 changed files with 18 additions and 2 deletions
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20
gcc/c-lex.c
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@ -1,5 +1,5 @@
/* Lexical analyzer for C and Objective C.
Copyright (C) 1987, 1988, 1989, 1992, 1994 Free Software Foundation, Inc.
Copyright (C) 1987, 88, 89, 92, 94, 1995 Free Software Foundation, Inc.
This file is part of GNU CC.
@ -644,7 +644,20 @@ linenum:
if (token == CONSTANT
&& TREE_CODE (yylval.ttype) == INTEGER_CST
&& TREE_INT_CST_LOW (yylval.ttype) == 3)
in_system_header = 1;
in_system_header = 1, used_up = 1;
if (used_up)
{
/* Is this the last nonwhite stuff on the line? */
c = getc (finput);
while (c == ' ' || c == '\t')
c = getc (finput);
if (c == '\n')
return c;
ungetc (c, finput);
}
warning ("unrecognized text at end of #line");
}
else
error ("invalid #-line");
@ -1798,6 +1811,9 @@ yylex ()
}
*p = 0;
if (c < 0)
error ("Unterminated string constant");
/* We have read the entire constant.
Construct a STRING_CST for the result. */