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| author | Tom de Vries <tdevries@suse.de> | 2019-04-11 15:36:59 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2019-04-11 15:36:59 +0000 |
| commit | cd7ffd8a9382c78725f3c09b317bdb4739d3654b (patch) | |
| tree | 4a08e65bc698b0c31880d7529f36992deb14011a /gcc/fortran/frontend-passes.c | |
| parent | 657184d086a57eb214dda530035563a1ecc3df10 (diff) | |
| download | gcc-cd7ffd8a9382c78725f3c09b317bdb4739d3654b.zip gcc-cd7ffd8a9382c78725f3c09b317bdb4739d3654b.tar.gz gcc-cd7ffd8a9382c78725f3c09b317bdb4739d3654b.tar.bz2 | |
[doc] Note variable shadowing at max macro using statement expression
When suggesting to rewrite the unsafe (with respect to multiple evaluation of
arguments) macro definition:
...
#define max(a,b) ((a) > (b) ? (a) : (b))
...
into the safe macro definition:
...
#define maxint(a,b) \
({int _a = (a), _b = (b); _a > _b ? _a : _b; })
...
mention the variable shadowing problem for:
...
#define maxint3(a, b, c) \
({int _a = (a), _b = (b), _c = (c); maxint (maxint (_a, _b), _c); })
...
2019-04-11 Tom de Vries <tdevries@suse.de>
* doc/extend.texi (@node Statement Exprs): Note variable shadowing at
max macro using statement expression.
From-SVN: r270287
Diffstat (limited to 'gcc/fortran/frontend-passes.c')
0 files changed, 0 insertions, 0 deletions