You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
2.8 KiB
64 lines
2.8 KiB
// RUN: %clang_cc1 -fms-extensions -triple i686-pc-windows-msvc -Wcast-calling-convention -DMSVC -Wno-pointer-bool-conversion -verify -x c %s
|
|
// RUN: %clang_cc1 -fms-extensions -triple i686-pc-windows-msvc -Wcast-calling-convention -DMSVC -Wno-pointer-bool-conversion -verify -x c++ %s
|
|
// RUN: %clang_cc1 -fms-extensions -triple i686-pc-windows-msvc -Wcast-calling-convention -DMSVC -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s --check-prefix=MSFIXIT
|
|
// RUN: %clang_cc1 -triple i686-pc-windows-gnu -Wcast-calling-convention -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s --check-prefix=GNUFIXIT
|
|
|
|
// expected-note@+1 {{consider defining 'mismatched_before_winapi' with the 'stdcall' calling convention}}
|
|
void mismatched_before_winapi(int x) {}
|
|
|
|
#ifdef MSVC
|
|
#define WINAPI __stdcall
|
|
#else
|
|
#define WINAPI __attribute__((stdcall))
|
|
#endif
|
|
|
|
// expected-note@+1 3 {{consider defining 'mismatched' with the 'stdcall' calling convention}}
|
|
void mismatched(int x) {}
|
|
|
|
typedef void (WINAPI *callback_t)(int);
|
|
void take_callback(callback_t callback);
|
|
|
|
void WINAPI mismatched_stdcall(int x) {}
|
|
|
|
void take_opaque_fn(void (*callback)(int));
|
|
|
|
int main() {
|
|
// expected-warning@+1 {{cast between incompatible calling conventions 'cdecl' and 'stdcall'}}
|
|
take_callback((callback_t)mismatched);
|
|
|
|
// expected-warning@+1 {{cast between incompatible calling conventions 'cdecl' and 'stdcall'}}
|
|
callback_t callback = (callback_t)mismatched; // warns
|
|
(void)callback;
|
|
|
|
// expected-warning@+1 {{cast between incompatible calling conventions 'cdecl' and 'stdcall'}}
|
|
callback = (callback_t)&mismatched; // warns
|
|
|
|
// No warning, just to show we don't drill through other kinds of unary operators.
|
|
callback = (callback_t)!mismatched;
|
|
|
|
// expected-warning@+1 {{cast between incompatible calling conventions 'cdecl' and 'stdcall'}}
|
|
callback = (callback_t)&mismatched_before_winapi; // warns
|
|
|
|
// Probably a bug, but we don't warn.
|
|
void (*callback2)(int) = mismatched;
|
|
take_callback((callback_t)callback2);
|
|
|
|
// Another way to suppress the warning.
|
|
take_callback((callback_t)(void*)mismatched);
|
|
|
|
// Don't warn, because we're casting from stdcall to cdecl. Usually that means
|
|
// the programmer is rinsing the function pointer through some kind of opaque
|
|
// API.
|
|
take_opaque_fn((void (*)(int))mismatched_stdcall);
|
|
}
|
|
|
|
// MSFIXIT: fix-it:"{{.*}}callingconv-cast.c":{16:6-16:6}:"WINAPI "
|
|
// MSFIXIT: fix-it:"{{.*}}callingconv-cast.c":{16:6-16:6}:"WINAPI "
|
|
// MSFIXIT: fix-it:"{{.*}}callingconv-cast.c":{16:6-16:6}:"WINAPI "
|
|
// MSFIXIT: fix-it:"{{.*}}callingconv-cast.c":{7:6-7:6}:"__stdcall "
|
|
|
|
// GNUFIXIT: fix-it:"{{.*}}callingconv-cast.c":{16:6-16:6}:"WINAPI "
|
|
// GNUFIXIT: fix-it:"{{.*}}callingconv-cast.c":{16:6-16:6}:"WINAPI "
|
|
// GNUFIXIT: fix-it:"{{.*}}callingconv-cast.c":{16:6-16:6}:"WINAPI "
|
|
// GNUFIXIT: fix-it:"{{.*}}callingconv-cast.c":{7:6-7:6}:"__attribute__((stdcall)) "
|