[Bug fortran/46705] Spurious "Missing '&' in continued character constant" warning occurs twice
burnus at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Mon Nov 29 21:02:00 GMT 2010
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46705
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |burnus at gcc dot gnu.org,
| |jvdelisle at gcc dot
| |gnu.org
--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> 2010-11-29 20:39:24 UTC ---
The crucial part is that a '' or a "" is immediately followed by the ampersand.
The warning is printed by scanner.c's gfc_next_char_literal when called with a
non-zero argument ("in_string"). In io.c, that matches a next_char with
non-zero argument.
The logic fails in io.c with:
static format_token
...
case '\'':
case '"':
delim = c;
...
for (;;)
{
c = next_char (1); // Reads next second tick: '
...
if (c == delim)
{
c = next_char (1); // encounters ampersand and goes into next
line
One might need to do something like (untested!):
c = next_char (gfc_peek_ascii_char () != '&'));
Or something fancier.
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