diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-1.C')
-rw-r--r-- | gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-1.C | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-1.C b/gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-1.C new file mode 100644 index 00000000000..d0f62b212ec --- /dev/null +++ b/gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-1.C @@ -0,0 +1,100 @@ +// { dg-options "-Wzero-as-null-pointer-constant" } + +struct A; + +typedef int (A::*pointmemfun) (int); +typedef int (A::*pointdmem); +typedef int (*pointfun) (int); + +pointmemfun pmfs; +pointdmem pdms; +pointfun pfs; +int* ps; + +void f() +{ + pointmemfun pmf(0); // { dg-warning "zero as null pointer" } + pointdmem pdm(0); // { dg-warning "zero as null pointer" } + pointfun pf(0); // { dg-warning "zero as null pointer" } + int* p(0); // { dg-warning "zero as null pointer" } + + pmf = 0; // { dg-warning "zero as null pointer" } + + pdm = 0; // { dg-warning "zero as null pointer" } + + pf = 0; // { dg-warning "zero as null pointer" } + + p = 0; // { dg-warning "zero as null pointer" } + + if (pmf) + ; + + if (pdm) + ; + + if (pf) + ; + + if (p) + ; + + if (!pmf) + ; + + if (!pdm) + ; + + if (!pf) + ; + + if (!p) + ; + + if (pmf == 0) // { dg-warning "zero as null pointer" } + ; + + if (pdm == 0) // { dg-warning "zero as null pointer" } + ; + + if (pf == 0) // { dg-warning "zero as null pointer" } + ; + + if (p == 0) // { dg-warning "zero as null pointer" } + ; + + if (0 == pmf) // { dg-warning "zero as null pointer" } + ; + + if (0 == pdm) // { dg-warning "zero as null pointer" } + ; + + if (0 == pf) // { dg-warning "zero as null pointer" } + ; + + if (0 == p) // { dg-warning "zero as null pointer" } + ; + + if (pmf != 0) // { dg-warning "zero as null pointer" } + ; + + if (pdm != 0) // { dg-warning "zero as null pointer" } + ; + + if (pf != 0) // { dg-warning "zero as null pointer" } + ; + + if (p != 0) // { dg-warning "zero as null pointer" } + ; + + if (0 != pmf) // { dg-warning "zero as null pointer" } + ; + + if (0 != pdm) // { dg-warning "zero as null pointer" } + ; + + if (0 != pf) // { dg-warning "zero as null pointer" } + ; + + if (0 != p) // { dg-warning "zero as null pointer" } + ; +} |