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authorBen Cheng <bccheng@google.com>2013-03-28 11:14:20 -0700
committerBen Cheng <bccheng@google.com>2013-03-28 12:40:33 -0700
commitaf0c51ac87ab2a87caa03fa108f0d164987a2764 (patch)
tree4b8b470f7c5b69642fdab8d0aa1fbc148d02196b /gcc-4.8/gcc/testsuite/gcc.dg/pointer-arith-2.c
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[GCC 4.8] Initial check-in of GCC 4.8.0
Change-Id: I0719d8a6d0f69b367a6ab6f10eb75622dbf12771
Diffstat (limited to 'gcc-4.8/gcc/testsuite/gcc.dg/pointer-arith-2.c')
-rw-r--r--gcc-4.8/gcc/testsuite/gcc.dg/pointer-arith-2.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.dg/pointer-arith-2.c b/gcc-4.8/gcc/testsuite/gcc.dg/pointer-arith-2.c
new file mode 100644
index 000000000..cda287c28
--- /dev/null
+++ b/gcc-4.8/gcc/testsuite/gcc.dg/pointer-arith-2.c
@@ -0,0 +1,41 @@
+/* Test diagnostics for arithmetic on void and function pointers.
+ Test with -Wpointer-arith. */
+/* Origin: Joseph Myers <joseph@codesourcery.com> */
+/* { dg-do compile } */
+/* { dg-options "-Wpointer-arith" } */
+
+void *p;
+void (*f)(void);
+
+void
+g (void)
+{
+ p + 0; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */
+ p + 1; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */
+ 0 + p; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */
+ 1 + p; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */
+ p - 0; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */
+ p - 1; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */
+ p += 0; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */
+ p += 1; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */
+ p -= 0; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */
+ p -= 1; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */
+ f + 0; /* { dg-warning "pointer to a function used in arithmetic" } */
+ f + 1; /* { dg-warning "pointer to a function used in arithmetic" } */
+ 0 + f; /* { dg-warning "pointer to a function used in arithmetic" } */
+ 1 + f; /* { dg-warning "pointer to a function used in arithmetic" } */
+ f - 0; /* { dg-warning "pointer to a function used in arithmetic" } */
+ f - 1; /* { dg-warning "pointer to a function used in arithmetic" } */
+ f += 0; /* { dg-warning "pointer to a function used in arithmetic" } */
+ f += 1; /* { dg-warning "pointer to a function used in arithmetic" } */
+ f -= 0; /* { dg-warning "pointer to a function used in arithmetic" } */
+ f -= 1; /* { dg-warning "pointer to a function used in arithmetic" } */
+ p[0]; /* { dg-warning "dereferencing 'void \\*' pointer" } */
+ /* { dg-warning "pointer of type 'void \\*' used in arithmetic" "array 1" { target *-*-* } 33 } */
+ 0[p]; /* { dg-warning "dereferencing 'void \\*' pointer" } */
+ /* { dg-warning "pointer of type 'void \\*' used in arithmetic" "array 1" { target *-*-* } 35 } */
+ f[0]; /* { dg-error "subscripted value is pointer to function" } */
+ 0[f]; /* { dg-error "subscripted value is pointer to function" } */
+ p - p; /* { dg-warning "pointer of type 'void \\*' used in subtraction" } */
+ f - f; /* { dg-warning "pointer to a function used in subtraction" } */
+}