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| author | Joseph Myers <joseph@codesourcery.com> | 2009-04-19 21:38:53 +0100 |
|---|---|---|
| committer | Joseph Myers <jsm28@gcc.gnu.org> | 2009-04-19 21:38:53 +0100 |
| commit | a45e580b25016442fdc11d987e72e899d9225996 (patch) | |
| tree | 4850118ecd76a196e8b3bf9540aac5af9f27f4bf /gcc | |
| parent | 20845d35828c2d166550453b14b6e52c5f3b2826 (diff) | |
| download | gcc-a45e580b25016442fdc11d987e72e899d9225996.zip gcc-a45e580b25016442fdc11d987e72e899d9225996.tar.gz gcc-a45e580b25016442fdc11d987e72e899d9225996.tar.bz2 | |
re PR c/37481 (-pedantic accepts flexible array member = "string" initialization)
PR c/37481
* c-typeck.c (digest_init): Check for initializing an array with a
string literal.
testsuite:
* gcc.dg/c99-flex-array-7.c: New test.
From-SVN: r146359
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/c-typeck.c | 4 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/c99-flex-array-7.c | 17 |
4 files changed, 32 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 01488bf..6b45179 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2009-04-19 Joseph Myers <joseph@codesourcery.com> + PR c/37481 + * c-typeck.c (digest_init): Check for initializing an array with a + string literal. + +2009-04-19 Joseph Myers <joseph@codesourcery.com> + PR c/19771 * c-semantics.c (pop_stmt_list): Propagate STATEMENT_LIST_HAS_LABEL to parent statement list. diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c index 821f4ce..96b1a5d 100644 --- a/gcc/c-typeck.c +++ b/gcc/c-typeck.c @@ -5254,6 +5254,10 @@ digest_init (tree type, tree init, bool null_pointer_constant, expr.original_type = NULL; maybe_warn_string_init (type, expr); + if (TYPE_DOMAIN (type) && !TYPE_MAX_VALUE (TYPE_DOMAIN (type))) + pedwarn_init (input_location, OPT_pedantic, + "initialization of a flexible array member"); + if (comptypes (TYPE_MAIN_VARIANT (TREE_TYPE (inside_init)), TYPE_MAIN_VARIANT (type))) return inside_init; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index a3e266b..9b66c9d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,10 @@ 2009-04-19 Joseph Myers <joseph@codesourcery.com> + PR c/37481 + * gcc.dg/c99-flex-array-7.c: New test. + +2009-04-19 Joseph Myers <joseph@codesourcery.com> + PR c/19771 * gcc.c-torture/execute/vla-dealloc-1.c: New test. diff --git a/gcc/testsuite/gcc.dg/c99-flex-array-7.c b/gcc/testsuite/gcc.dg/c99-flex-array-7.c new file mode 100644 index 0000000..8966e6c --- /dev/null +++ b/gcc/testsuite/gcc.dg/c99-flex-array-7.c @@ -0,0 +1,17 @@ +/* Initialization of a flexible array member with a string constant + must be diagnosed. PR 37481. */ +/* { dg-do compile } */ +/* { dg-options "-std=iso9899:1999 -pedantic-errors" } */ + +struct s { int a; char b[]; }; + +struct s a = { 0, "" }; /* { dg-error "initialization of a flexible array member" } */ +/* { dg-error "near init" "near init" { target *-*-* } 8 } */ +struct s b = { 0, { 0 } }; /* { dg-error "initialization of a flexible array member" } */ +/* { dg-error "near init" "near init" { target *-*-* } 10 } */ +struct s c = { 0, { } }; /* { dg-error "ISO C forbids empty initializer braces" } */ +struct s d = { .b = "" }; /* { dg-error "initialization of a flexible array member" } */ +/* { dg-error "near init" "near init" { target *-*-* } 13 } */ +struct s e = { .b = { 0 } }; /* { dg-error "initialization of a flexible array member" } */ +/* { dg-error "near init" "near init" { target *-*-* } 15 } */ +struct s f = { .b = { } }; /* { dg-error "ISO C forbids empty initializer braces" } */ |