llvm-project/clang/test/Sema/static-array.c

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// RUN: %clang_cc1 -fsyntax-only -verify %s
void cat0(int a[static 0]) {} // expected-warning {{'static' has no effect on zero-length arrays}}
void cat(int a[static 3]) {} // expected-note 2 {{callee declares array parameter as static here}}
typedef int i3[static 3];
void tcat(i3 a) {}
void vat(int i, int a[static i]) {} // expected-note {{callee declares array parameter as static here}}
void f(int *p) {
int a[2], b[3], c[4];
cat0(0);
cat(0); // expected-warning {{null passed to a callee which requires a non-null argument}}
cat(a); // expected-warning {{array argument is too small; contains 2 elements, callee requires at least 3}}
cat(b);
cat(c);
cat(p);
tcat(0); // expected-warning {{null passed to a callee which requires a non-null argument}}
tcat(a); // expected-warning {{array argument is too small; contains 2 elements, callee requires at least 3}}
tcat(b);
tcat(c);
tcat(p);
vat(1, 0); // expected-warning {{null passed to a callee which requires a non-null argument}}
vat(3, b);
}