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Use -Wtraditional for "would be stringified in traditional C" (PR preprocessor/81794)

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libcpp/ChangeLog:

2017-03-24  Eric Gallager  <egall@gwmail.gwu.edu>

	PR preprocessor/81794
	* macro.c (check_trad_stringification): Have warning be controlled
	by -Wtraditional.

gcc/testsuite/ChangeLog:

2017-09-17  Eric Gallager  <egall@gwmail.gwu.edu>

	PR preprocessor/81794
	* gcc.dg/pragma-diag-7.c: Update to include check for
	stringification.

From-SVN: r254981
This commit is contained in:
Eric Gallager 2017-11-21 00:57:29 +00:00 committed by David Malcolm
parent 26edace69b
commit 34b81eb96c
4 changed files with 26 additions and 1 deletions
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6
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,9 @@
2017-11-20 Eric Gallager <egall@gwmail.gwu.edu>
PR preprocessor/81794
* gcc.dg/pragma-diag-7.c: Update to include check for
stringification.
2017-11-20 David Malcolm <dmalcolm@redhat.com>
PR c/81404

13
gcc/testsuite/gcc.dg/pragma-diag-7.c
View File

@ -7,3 +7,16 @@ unsigned long bad = 1UL; /* { dg-warning "suffix" } */
/* Note the extra space before the pragma on this next line: */
#pragma GCC diagnostic pop
unsigned long ok_again = 2UL; /* { dg-bogus "suffix" } */
/* Redundant with the previous pop, but just shows that it fails to stop the
* following warning with an unpatched GCC: */
#pragma GCC diagnostic ignored "-Wtraditional"
/* { dg-bogus "would be stringified" "" { target *-*-* } .+1 } */
#define UNW_DEC_PROLOGUE(fmt, body, rlen, arg) \
do { \
unw_rlen = rlen; \
*(int *)arg = body; \
printf(" %s:%s(rlen=%lu)\n", \
fmt, (body ? "body" : "prologue"), (unsigned long)rlen); \
} while (0)

6
libcpp/ChangeLog
View File

@ -1,3 +1,9 @@
2017-11-20 Eric Gallager <egall@gwmail.gwu.edu>
PR preprocessor/81794
* macro.c (check_trad_stringification): Have warning be controlled
by -Wtraditional.
2017-11-20 David Malcolm <dmalcolm@redhat.com>
PR c++/72786

2
libcpp/macro.c
View File

@ -3490,7 +3490,7 @@ check_trad_stringification (cpp_reader *pfile, const cpp_macro *macro,
if (NODE_LEN (node) == len
&& !memcmp (p, NODE_NAME (node), len))
{
cpp_error (pfile, CPP_DL_WARNING,
cpp_warning (pfile, CPP_W_TRADITIONAL,
"macro argument \"%s\" would be stringified in traditional C",
NODE_NAME (node));
break;