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/* { dg-options "-Wunused-variable" } */
/* Verify that ignoring -Wunused-variable works, for various placements
of the variable and the _Pragma. */
/* Test 1: the _Pragma is in a macro, but the affected code isn't. */
#pragma GCC diagnostic push
#define MACRO_1 \
_Pragma("GCC diagnostic ignored \"-Wunused-variable\"")
int test_1()
{
_Pragma("GCC diagnostic ignored \"-Wunused-variable\"")
int x;
return 0;
}
#pragma GCC diagnostic pop
/* Test 2: neither the _Pragma nor the affected code are in a macro. */
#pragma GCC diagnostic push
int test_2()
{
_Pragma("GCC diagnostic ignored \"-Wunused-variable\"")
int x;
return 0;
}
#pragma GCC diagnostic pop
/* Test 3: the _Pragma isn't in a macro, but the affected code is. */
#define MACRO_3 \
int x;
#pragma GCC diagnostic push
int test_3()
{
_Pragma("GCC diagnostic ignored \"-Wunused-variable\"")
MACRO_3
return 0;
}
#pragma GCC diagnostic pop
/* Test 4: the _Pragma and the affected code are in different macros. */
#pragma GCC diagnostic push
#define MACRO_4A \
_Pragma("GCC diagnostic ignored \"-Wunused-variable\"")
#define MACRO_4B \
int x;
int test_4()
{
MACRO_4A;
MACRO_4B
return 0;
}
#pragma GCC diagnostic pop
/* Test 5: both the _Pragma and the affected code are in the same macro. */
#pragma GCC diagnostic push
#define MACRO_5 \
_Pragma("GCC diagnostic ignored \"-Wunused-variable\"") \
int x;
int test_5()
{
MACRO_5;
return 0;
}
#pragma GCC diagnostic pop
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