diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/c-c++-common/Wunused-var-7.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/c-c++-common/Wunused-var-7.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/c-c++-common/Wunused-var-7.c b/gcc-4.9/gcc/testsuite/c-c++-common/Wunused-var-7.c new file mode 100644 index 000000000..74196436d --- /dev/null +++ b/gcc-4.9/gcc/testsuite/c-c++-common/Wunused-var-7.c @@ -0,0 +1,48 @@ +/* PR c++/44062 */ +/* { dg-do compile } */ +/* { dg-options "-Wunused" } */ + +void +foo (void) +{ + int a, b, c, d, e, f, g; + a = 1; + b = 2; + c = 3; + d = 4; + e = 5; + f = 6; + g = 7; + a; /* { dg-warning "no effect" } */ + b, 1; /* { dg-warning "no effect" } */ + (void) c; + (void) d, 1; /* { dg-warning "no effect" } */ + e, f, 1; /* { dg-warning "no effect" } */ + (void) g, f, 1; /* { dg-warning "no effect" } */ +} + +void +bar (void) +{ + int a; + int b; + int c; /* { dg-warning "set but not used" } */ + a = 1; + b = 2; + c = 3; + c = ({ a++, b; }); +} + +void +baz (void) +{ + int a; + int b; + int c; + int d; + a = 1; + b = 2; + c = 3; + d = 4; + d, ( a++, b ), c; /* { dg-warning "no effect" } */ +} |