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| author | Joseph Myers <jsm@polyomino.org.uk> | 2004-01-24 00:30:58 +0000 |
|---|---|---|
| committer | Joseph Myers <jsm28@gcc.gnu.org> | 2004-01-24 00:30:58 +0000 |
| commit | b1adf557d89a46c314979ae683dd126795d0b762 (patch) | |
| tree | 1964c9b4b71b361bace08af1119a0b3e78ed1d02 /gcc/testsuite/gcc.dg/c90-array-lval-7.c | |
| parent | 251804e635b396f63548b40c20a8f8b324b49813 (diff) | |
| download | gcc-b1adf557d89a46c314979ae683dd126795d0b762.zip gcc-b1adf557d89a46c314979ae683dd126795d0b762.tar.gz gcc-b1adf557d89a46c314979ae683dd126795d0b762.tar.bz2 | |
c-typeck.c (build_conditional_expr): Do not allow non-lvalue arrays.
* c-typeck.c (build_conditional_expr): Do not allow non-lvalue
arrays.
testsuite:
* gcc.dg/c90-array-lval-7.c, gcc.dg/c99-array-lval-7.c: New tests.
From-SVN: r76477
Diffstat (limited to 'gcc/testsuite/gcc.dg/c90-array-lval-7.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/c90-array-lval-7.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/c90-array-lval-7.c b/gcc/testsuite/gcc.dg/c90-array-lval-7.c new file mode 100644 index 0000000..ee8da4c --- /dev/null +++ b/gcc/testsuite/gcc.dg/c90-array-lval-7.c @@ -0,0 +1,23 @@ +/* Test for non-lvalue arrays: test that C90 does not allow them in + conditional expressions, while in C99 they decay and are + allowed. */ + +/* Origin: Joseph Myers <jsm@polyomino.org.uk> */ +/* { dg-do compile } */ +/* { dg-options "-std=iso9899:1990 -pedantic-errors" } */ + +struct s { char c[1]; }; +struct s a, b, c; +int d; +int e; + +void +bar (void) +{ + /* In C90, the non-lvalue arrays do not decay to pointers, and + 6.3.15 does not permit conditional expressions between arrays. + In C99, they decay to pointers. */ + (e ? (d ? b : c).c : (e ? b : c).c); /* { dg-bogus "warning" "warning in place of error" } */ +} + +/* { dg-error "array" "bad conditional" { target *-*-* } 20 } */ |