forked from OSchip/llvm-project
41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
// RUN: %clang_cc1 -verify=relaxed -fstrict-flex-arrays=1 %s
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// RUN: %clang_cc1 -verify=relaxed,strict -fstrict-flex-arrays=2 %s
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// RUN: %clang_cc1 -verify=relaxed,strict,very-strict -fstrict-flex-arrays=3 %s
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// We cannot know for sure the size of a flexible array.
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struct t {
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int f;
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int a[];
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};
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void test(t *s2) {
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s2->a[2] = 0; // no-warning
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}
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// Under -fstrict-flex-arrays={1,2,3} `a` is not a flexible array
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struct t0 {
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int f;
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int a[10]; // relaxed-note {{array 'a' declared here}}
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};
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void test0(t0 *s2) {
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s2->a[12] = 0; // relaxed-warning {{array index 12 is past the end of the array (that has type 'int[10]')}}
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}
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// Under -fstrict-flex-arrays=2 `a` is not a flexible array, but it is under -fstrict-flex-arrays=1
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struct t1 {
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int f;
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int a[1]; // strict-note {{array 'a' declared here}}
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};
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void test1(t1 *s2) {
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s2->a[2] = 0; // strict-warning {{array index 2 is past the end of the array (that has type 'int[1]')}}
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}
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// Under -fstrict-flex-arrays={1,2} `a` is a flexible array, but not under -fstrict-flex-arrays=3.
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struct t2 {
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int f;
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int a[0]; // very-strict-note {{array 'a' declared here}}
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};
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void test1(t2 *s2) {
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s2->a[2] = 0; // very-strict-warning {{array index 2 is past the end of the array (that has type 'int[0]')}}
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}
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