gcc/testsuite/gcc.dg/c99-flex-array-typedef-5.c


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/* Test for flexible array members: not permitted in unions.  */
/* { dg-do compile } */
/* { dg-options "-std=iso9899:1999 -pedantic-errors" } */

typedef char T[];
union u { int a; T b; }; /* { dg-error "flexible array member in union" } */