46 lines
1.4 KiB
C
46 lines
1.4 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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union foo1
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{
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float f;
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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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float f;
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long l;
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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. */
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static union foo1 f1 = {0};
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static union foo2 f2 = {0};
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static union foo1 f3 = {1}; /* { dg-warning "traditional C rejects initialization of unions" "initialization of unions" } */
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static union foo2 f4 = {1}; /* { dg-warning "traditional C rejects initialization of unions" "initialization of unions" } */
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static union foo1 f5 = {0.0};
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static union foo2 f6 = {0.0};
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static union foo1 f7 = {1.0}; /* { dg-warning "traditional C rejects initialization of unions" "initialization of unions" } */
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static union foo2 f8 = {1.0}; /* { dg-warning "traditional C rejects initialization of unions" "initialization of unions" } */
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# 35 "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 foo1 b1 = {0};
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static union foo2 b2 = {0};
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static union foo1 b3 = {1};
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static union foo2 b4 = {1};
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static union foo1 b5 = {0.0};
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static union foo2 b6 = {0.0};
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static union foo1 b7 = {1.0};
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static union foo2 b8 = {1.0};
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}
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