llvm-project/clang/test/Parser/static_assert.c

46 lines
3.0 KiB
C

// RUN: %clang_cc1 -fsyntax-only -std=c2x -DTEST_SPELLING -verify=c2x %s
// RUN: %clang_cc1 -fsyntax-only -std=c2x -DTEST_SPELLING -fms-compatibility -verify=c2x-ms %s
// RUN: %clang_cc1 -fsyntax-only -std=c2x -Wpre-c2x-compat -verify=c2x-compat %s
// RUN: %clang_cc1 -fsyntax-only -std=c99 -verify=c99 %s
// RUN: %clang_cc1 -fsyntax-only -std=c99 -pedantic -verify=c99-pedantic %s
// RUN: %clang_cc1 -fsyntax-only -std=c++17 -verify=cxx17 -x c++ %s
// RUN: %clang_cc1 -fsyntax-only -std=c++17 -pedantic -verify=cxx17-pedantic -x c++ %s
// RUN: %clang_cc1 -fsyntax-only -std=c++98 -verify=cxx98 -x c++ %s
// RUN: %clang_cc1 -fsyntax-only -std=c++98 -pedantic -verify=cxx98-pedantic -x c++ %s
// RUN: %clang_cc1 -fsyntax-only -std=c++17 -Wpre-c++17-compat -verify=cxx17-compat -x c++ %s
// cxx17-no-diagnostics
#ifdef TEST_SPELLING
// Only test the C++ spelling in C mode in some of the tests, to reduce the
// amount of diagnostics to have to check. This spelling is allowed in MS-
// compatibility mode in C, but otherwise produces errors.
static_assert(1, ""); // c2x-error {{expected parameter declarator}} \
// c2x-error {{expected ')'}} \
// c2x-note {{to match this '('}} \
// c2x-warning {{type specifier missing, defaults to 'int'}} \
// c2x-ms-warning {{use of 'static_assert' without inclusion of <assert.h> is a Microsoft extension}}
#endif
// We support _Static_assert as an extension in older C modes and in all C++
// modes, but only as a pedantic warning.
_Static_assert(1, ""); // c99-pedantic-warning {{'_Static_assert' is a C11 extension}} \
// cxx17-pedantic-warning {{'_Static_assert' is a C11 extension}} \
// cxx98-pedantic-warning {{'_Static_assert' is a C11 extension}}
// _Static_assert without a message has more complex diagnostic logic:
// * In C++17 or C2x mode, it's supported by default.
// * But there is a special compat warning flag to warn about portability to
// older standards.
// * In older standard pedantic modes, warn about supporting without a
// message as an extension.
_Static_assert(1); // c99-pedantic-warning {{'_Static_assert' with no message is a C2x extension}} \
// c99-warning {{'_Static_assert' with no message is a C2x extension}} \
// cxx98-pedantic-warning {{'static_assert' with no message is a C++17 extension}} \
// cxx98-warning {{'static_assert' with no message is a C++17 extension}} \
// c2x-compat-warning {{'_Static_assert' with no message is incompatible with C standards before C2x}} \
// cxx17-compat-warning {{'static_assert' with no message is incompatible with C++ standards before C++17}} \
// c99-pedantic-warning {{'_Static_assert' is a C11 extension}} \
// cxx17-pedantic-warning {{'_Static_assert' is a C11 extension}} \
// cxx98-pedantic-warning {{'_Static_assert' is a C11 extension}}