65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/* Test for -Wtraditional warnings on union initialization.
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Note, gcc should omit these warnings in system header files.
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By Kaveh R. Ghazi <ghazi@caip.rutgers.edu> 9/11/2000. */
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/* { dg-do compile } */
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/* { dg-options "-Wtraditional" } */
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struct bar
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{
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int i;
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long j;
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};
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union foo
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{
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struct bar b;
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int i;
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long l;
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};
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union foo2
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{
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int i;
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long l;
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};
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struct baz
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{
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int a;
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double b;
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union foo c;
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};
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struct baz2
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{
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int a;
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double b;
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union foo2 c;
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};
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void
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testfunc ()
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{
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/* Note we only warn for nonzero initializers. Xfail on substructures. */
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static union foo f1 = {{0,0}}; /* { dg-bogus "traditional C rejects initialization of unions" "initialization of unions" { xfail *-*-* } } */
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static union foo f2 = {{1,1}}; /* { dg-warning "traditional C rejects initialization of unions" "initialization of unions" } */
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static struct baz f3 = { 1, 2, {{0,0}} }; /* { dg-bogus "traditional C rejects initialization of unions" "initialization of unions" { xfail *-*-* } } */
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static struct baz f4 = { 1, 2, {{1,1}} }; /* { dg-warning "traditional C rejects initialization of unions" "initialization of unions" } */
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static struct baz2 f5 = { 1, 2, {0} };
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static struct baz2 f6 = { 1, 2, {1} }; /* { dg-warning "traditional C rejects initialization of unions" "initialization of unions" } */
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# 54 "sys-header.h" 3
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/* We are in system headers now, no -Wtraditional warnings should issue. */
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static union foo b1 = {{0,0}};
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static union foo b2 = {{1,1}};
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static struct baz b3 = { 1, 2, {{0,0}} };
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static struct baz b4 = { 1, 2, {{1,1}} };
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static struct baz2 b5 = { 1, 2, {0} };
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static struct baz2 b6 = { 1, 2, {1} };
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}
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