250 lines
4.0 KiB
C++
250 lines
4.0 KiB
C++
// REQUIRES: aarch64-registered-target
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// RUN: %clang_cc1 -triple aarch64-linux-gnu -x c++ -std=c++1z %s -verify
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// expected-no-diagnostics
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#include <stddef.h>
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struct t1
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{
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int foo : 1;
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char : 0;
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char bar;
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};
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static_assert(offsetof(struct t1, bar) == 1);
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static_assert(sizeof(struct t1) == 4);
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struct t2
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{
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int foo : 1;
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short : 0;
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char bar;
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};
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static_assert(offsetof(struct t2, bar) == 2);
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static_assert(sizeof(struct t2) == 4);
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struct t3
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{
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int foo : 1;
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int : 0;
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char bar;
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};
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static_assert(offsetof(struct t3, bar) == 4);
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static_assert(sizeof(struct t3) == 8);
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struct t4
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{
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int foo : 1;
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long : 0;
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char bar;
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};
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static_assert(offsetof(struct t4, bar) == 8);
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static_assert(sizeof(struct t4) == 16);
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struct t5
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{
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int foo : 1;
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long long : 0;
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char bar;
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};
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static_assert(offsetof(struct t5, bar) == 8);
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static_assert(sizeof(struct t5) == 16);
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struct t6
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{
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int foo : 1;
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char : 0;
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char bar : 1;
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char bar2;
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};
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static_assert(offsetof(struct t6, bar2) == 2);
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static_assert(sizeof(struct t6) == 4);
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struct t7
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{
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int foo : 1;
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short : 0;
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char bar1 : 1;
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char bar2;
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};
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static_assert(offsetof(struct t7, bar2) == 3);
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static_assert(sizeof(struct t7) == 4);
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struct t8
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{
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int foo : 1;
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int : 0;
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char bar1 : 1;
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char bar2;
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};
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static_assert(offsetof(struct t8, bar2) == 5);
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static_assert(sizeof(struct t8) == 8);
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struct t9
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{
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int foo : 1;
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long : 0;
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char bar1 : 1;
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char bar2;
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};
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static_assert(offsetof(struct t9, bar2) == 9);
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static_assert(sizeof(struct t9) == 16);
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struct t10
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{
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int foo : 1;
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long long : 0;
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char bar1 : 1;
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char bar2;
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};
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static_assert(offsetof(struct t10, bar2) == 9);
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static_assert(sizeof(struct t10) == 16);
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struct t11
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{
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int foo : 1;
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long long : 0;
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char : 0;
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char bar1 : 1;
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char bar2;
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};
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static_assert(offsetof(struct t11, bar2) == 9);
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static_assert(sizeof(struct t11) == 16);
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struct t12
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{
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int foo : 1;
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char : 0;
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long long : 0;
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char : 0;
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char bar;
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};
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static_assert(offsetof(struct t12, bar) == 8);
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static_assert(sizeof(struct t12) == 16);
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struct t13
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{
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char foo;
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long : 0;
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char bar;
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};
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static_assert(offsetof(struct t13, bar) == 8);
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static_assert(sizeof(struct t13) == 16);
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struct t14
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{
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char foo1;
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int : 0;
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char foo2 : 1;
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short foo3 : 16;
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char : 0;
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short foo4 : 16;
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char bar1;
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int : 0;
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char bar2;
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};
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static_assert(offsetof(struct t14, bar1) == 10);
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static_assert(offsetof(struct t14, bar2) == 12);
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static_assert(sizeof(struct t14) == 16);
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struct t15
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{
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char foo;
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char : 0;
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int : 0;
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char bar;
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long : 0;
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char : 0;
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};
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static_assert(offsetof(struct t15, bar) == 4);
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static_assert(sizeof(struct t15) == 8);
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struct t16
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{
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long : 0;
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char bar;
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};
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static_assert(offsetof(struct t16, bar) == 0);
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static_assert(sizeof(struct t16) == 8);
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struct t17
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{
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char foo;
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long : 0;
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long : 0;
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char : 0;
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char bar;
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};
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static_assert(offsetof(struct t17, bar) == 8);
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static_assert(sizeof(struct t17) == 16);
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struct t18
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{
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long : 0;
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long : 0;
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char : 0;
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};
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static_assert(sizeof(struct t18) == 8);
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struct t19
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{
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char foo1;
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long foo2 : 1;
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char : 0;
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long foo3 : 32;
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char bar;
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};
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static_assert(offsetof(struct t19, bar) == 6);
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static_assert(sizeof(struct t19) == 8);
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struct t20
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{
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short : 0;
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int foo : 1;
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long : 0;
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char bar;
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};
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static_assert(offsetof(struct t20, bar) == 8);
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static_assert(sizeof(struct t20) == 16);
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struct t21
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{
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short : 0;
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int foo1 : 1;
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char : 0;
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int foo2 : 16;
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long : 0;
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char bar1;
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int bar2;
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long bar3;
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char foo3 : 8;
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char : 0;
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long : 0;
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int foo4 : 32;
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short foo5: 1;
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long bar4;
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short foo6: 16;
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short foo7: 16;
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short foo8: 16;
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};
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static_assert(offsetof(struct t21, bar1) == 8);
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static_assert(offsetof(struct t21, bar2) == 12);
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static_assert(offsetof(struct t21, bar3) == 16);
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static_assert(offsetof(struct t21, bar4) == 40);
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static_assert(sizeof(struct t21) == 56);
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// The rules also apply to anonymous bitfields with non-zero length.
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struct t22
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{
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char foo;
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short :2;
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char bar;
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};
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static_assert(alignof(struct t22) == 2);
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static_assert(offsetof(struct t22, bar) == 2);
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int main() {
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return 0;
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}
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