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| author | Peter Eisentraut <peter_e@gmx.net> | 2017-03-09 15:18:59 -0500 |
|---|---|---|
| committer | Peter Eisentraut <peter_e@gmx.net> | 2017-03-28 21:59:23 -0400 |
| commit | 4cb824699e12c39fad97fb3d9085ced0d14c067c (patch) | |
| tree | 9a835d8efb7739e6436d3fc24b4b5a290b95df7d /src/backend/parser/parse_clause.c | |
| parent | 66b764341ba12206f01e2600713bdc3abdb070b3 (diff) | |
| download | postgresql-4cb824699e12c39fad97fb3d9085ced0d14c067c.tar.gz postgresql-4cb824699e12c39fad97fb3d9085ced0d14c067c.zip | |
Cast result of copyObject() to correct type
copyObject() is declared to return void *, which allows easily assigning
the result independent of the input, but it loses all type checking.
If the compiler supports typeof or something similar, cast the result to
the input type. This creates a greater amount of type safety. In some
cases, where the result is assigned to a generic type such as Node * or
Expr *, new casts are now necessary, but in general casts are now
unnecessary in the normal case and indicate that something unusual is
happening.
Reviewed-by: Mark Dilger <hornschnorter@gmail.com>
Diffstat (limited to 'src/backend/parser/parse_clause.c')
| -rw-r--r-- | src/backend/parser/parse_clause.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/parser/parse_clause.c b/src/backend/parser/parse_clause.c index 47ca685b568..4f391d2d411 100644 --- a/src/backend/parser/parse_clause.c +++ b/src/backend/parser/parse_clause.c @@ -348,7 +348,7 @@ transformJoinUsingClause(ParseState *pstate, /* Now create the lvar = rvar join condition */ e = makeSimpleA_Expr(AEXPR_OP, "=", - copyObject(lvar), copyObject(rvar), + (Node *) copyObject(lvar), (Node *) copyObject(rvar), -1); /* Prepare to combine into an AND clause, if multiple join columns */ |