File: c90-array-lval-7.c

package info (click to toggle)
gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 680,956 kB
  • sloc: ansic: 3,237,715; cpp: 896,882; ada: 772,854; f90: 144,254; asm: 68,788; makefile: 67,456; sh: 29,743; exp: 28,045; objc: 15,273; fortran: 11,885; python: 7,369; pascal: 5,375; awk: 3,725; perl: 2,872; yacc: 316; xml: 311; ml: 285; lex: 198; haskell: 122
file content (22 lines) | stat: -rw-r--r-- 694 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
/* 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 *-*-* } .-1 } */
}