/* Test C23 support for empty initializers: invalid use cases. */ /* { dg-do compile } */ /* { dg-options "-std=c23 -pedantic-errors" } */ /* Empty initialization is invalid for arrays of unknown size. This is diagnosed via the diagnostic for zero-size arrays. */ int x[] = {}; /* { dg-error "zero or negative size array" } */ void f (int a) { int x1[] = {}; /* { dg-error "zero or negative size array" } */ int x2[][a] = {}; /* { dg-error "zero or negative size array" } */ /* Nonempty VLA initializers are still invalid. */ int x3[a] = { 0 }; /* { dg-error "variable-sized object may not be initialized except with an empty initializer" } */ /* Variable-size compound literals are still invalid. */ (void) (int [a]) {}; /* { dg-error "compound literal has variable size" } */ }