wxWidgets/tests/allheaders.cpp
Vadim Zeitlin db1beaf436 Fix clang warnings about truncating 64 bit ints to 32 bits
See #23301.

(cherry picked from commit 2c530fa513da257b3892df1816ccbf00e8fa8ba5)
2023-02-27 16:17:38 +01:00

457 lines
14 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: tests/allheaders.cpp
// Purpose: Compilation test for all headers
// Author: Vadim Zeitlin, Arrigo Marchiori
// Created: 2020-04-20
// Copyright: (c) 2010,2020 Vadim Zeitlin, Wlodzimierz Skiba, Arrigo Marchiori
///////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// Note: can't use wxCHECK_GCC_VERSION() here as it's not defined yet.
#if defined(__GNUC__)
#define CHECK_GCC_VERSION(major, minor) \
(__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
#else
#define CHECK_GCC_VERSION(major, minor) 0
#endif
#if CHECK_GCC_VERSION(4, 6) || defined(__clang__)
// As above, we can't reuse wxCONCAT() and wxSTRINGIZE macros from wx/cpp.h
// here, so define their equivalents here.
#define CONCAT_HELPER(x, y) x ## y
#define CONCAT(x1, x2) CONCAT_HELPER(x1, x2)
#define STRINGIZE_HELPER(x) #x
#define STRINGIZE(x) STRINGIZE_HELPER(x)
#define WARNING_TURN_ON(comp, warn) \
_Pragma(STRINGIZE(comp diagnostic error STRINGIZE(CONCAT(-W,warn))))
#define WARNING_TURN_OFF(comp, warn) \
_Pragma(STRINGIZE(comp diagnostic ignored STRINGIZE(CONCAT(-W,warn))))
#if CHECK_GCC_VERSION(4, 6)
#define GCC_TURN_ON(warn) WARNING_TURN_ON(GCC, warn)
#define GCC_TURN_OFF(warn) WARNING_TURN_OFF(GCC, warn)
#elif defined(__clang__)
#define CLANG_TURN_ON(warn) WARNING_TURN_ON(clang, warn)
#define CLANG_TURN_OFF(warn) WARNING_TURN_OFF(clang, warn)
#endif
#endif
// We have to include this one first in order to check for wxUSE_XXX below.
#include "wx/setup.h"
// Normally this is done in wx/defs.h, but as we don't include it here, we need
// to do it manually to avoid warnings inside the standard headers included
// from catch.hpp.
#if defined(__CYGWIN__) && defined(__WINDOWS__)
#define __USE_W32_SOCKETS
#endif
#include "catch.hpp"
#if defined(__WXQT__)
// Include this one before enabling the warnings as doing it later, as it
// happens when it's included from wx/fontutil.h, results in -Wsign-promo.
#include <QtGui/QFont>
#endif
// Enable max warning level for headers if possible, using gcc pragmas.
#ifdef GCC_TURN_ON
// Enable all the usual "maximal" warnings.
GCC_TURN_ON(all)
GCC_TURN_ON(extra)
GCC_TURN_ON(pedantic)
// Enable all the individual warnings not enabled by one of the warnings
// above.
// Start of semi-auto-generated part, don't modify it manually.
//
// Manual changes:
// - Globally replace HANDLE_GCC_WARNING with GCC_TURN_ON.
// - Add v6 check for -Wabi, gcc < 6 don't seem to support turning it off
// once it's turned on and gives it for the standard library symbols.
// - Remove GCC_TURN_ON(system-headers) from the list because this option
// will enable the warnings to be thrown inside the system headers that
// should instead be ignored.
// {{{
#if CHECK_GCC_VERSION(6,1)
GCC_TURN_ON(abi)
#endif // 6.1
#if CHECK_GCC_VERSION(4,8)
GCC_TURN_ON(abi-tag)
#endif // 4.8
GCC_TURN_ON(address)
GCC_TURN_ON(aggregate-return)
#if CHECK_GCC_VERSION(7,1)
GCC_TURN_ON(alloc-zero)
#endif // 7.1
#if CHECK_GCC_VERSION(7,1)
GCC_TURN_ON(alloca)
#endif // 7.1
#if CHECK_GCC_VERSION(10,1)
GCC_TURN_ON(arith-conversion)
#endif // 10.1
GCC_TURN_ON(array-bounds)
GCC_TURN_ON(builtin-macro-redefined)
GCC_TURN_ON(cast-align)
#if CHECK_GCC_VERSION(8,1)
GCC_TURN_ON(cast-align=strict)
#endif // 8.1
GCC_TURN_ON(cast-qual)
GCC_TURN_ON(char-subscripts)
#if CHECK_GCC_VERSION(9,1)
GCC_TURN_ON(chkp)
#endif // 9.1
#if CHECK_GCC_VERSION(8,1)
GCC_TURN_ON(class-memaccess)
#endif // 8.1
GCC_TURN_ON(clobbered)
#if CHECK_GCC_VERSION(10,1)
GCC_TURN_ON(comma-subscript)
#endif // 10.1
GCC_TURN_ON(comment)
#if CHECK_GCC_VERSION(4,9)
GCC_TURN_ON(conditionally-supported)
#endif // 4.9
GCC_TURN_ON(conversion)
GCC_TURN_ON(ctor-dtor-privacy)
#if CHECK_GCC_VERSION(4,9)
GCC_TURN_ON(date-time)
#endif // 4.9
#if CHECK_GCC_VERSION(4,7)
GCC_TURN_ON(delete-non-virtual-dtor)
#endif // 4.7
#if CHECK_GCC_VERSION(9,1)
GCC_TURN_ON(deprecated-copy)
#endif // 9.1
#if CHECK_GCC_VERSION(9,1)
GCC_TURN_ON(deprecated-copy-dtor)
#endif // 9.1
GCC_TURN_ON(disabled-optimization)
GCC_TURN_ON(double-promotion)
#if CHECK_GCC_VERSION(7,1)
GCC_TURN_ON(duplicated-branches)
#endif // 7.1
#if CHECK_GCC_VERSION(6,1)
GCC_TURN_ON(duplicated-cond)
#endif // 6.1
GCC_TURN_ON(empty-body)
GCC_TURN_ON(endif-labels)
GCC_TURN_ON(enum-compare)
#if CHECK_GCC_VERSION(8,1)
GCC_TURN_ON(extra-semi)
#endif // 8.1
GCC_TURN_ON(float-equal)
GCC_TURN_ON(format)
GCC_TURN_ON(format-contains-nul)
GCC_TURN_ON(format-extra-args)
GCC_TURN_ON(format-nonliteral)
GCC_TURN_ON(format-security)
#if CHECK_GCC_VERSION(5,1)
GCC_TURN_ON(format-signedness)
#endif // 5.1
#if CHECK_GCC_VERSION(4,7)
GCC_TURN_ON(format-zero-length)
#endif // 4.7
GCC_TURN_ON(ignored-qualifiers)
GCC_TURN_ON(init-self)
GCC_TURN_ON(inline)
GCC_TURN_ON(invalid-pch)
#if CHECK_GCC_VERSION(4,8)
GCC_TURN_ON(literal-suffix)
#endif // 4.8
#if CHECK_GCC_VERSION(6,1)
GCC_TURN_ON(logical-op)
#endif // 6.1
GCC_TURN_ON(long-long)
GCC_TURN_ON(main)
#if CHECK_GCC_VERSION(4,7)
GCC_TURN_ON(maybe-uninitialized)
#endif // 4.7
#if CHECK_GCC_VERSION(10,1)
GCC_TURN_ON(mismatched-tags)
#endif // 10.1
GCC_TURN_ON(missing-braces)
GCC_TURN_ON(missing-declarations)
GCC_TURN_ON(missing-field-initializers)
GCC_TURN_ON(missing-format-attribute)
GCC_TURN_ON(missing-include-dirs)
GCC_TURN_ON(missing-noreturn)
GCC_TURN_ON(multichar)
#if CHECK_GCC_VERSION(6,1)
GCC_TURN_ON(namespaces)
#endif // 6.1
#if CHECK_GCC_VERSION(4,7)
GCC_TURN_ON(narrowing)
#endif // 4.7
GCC_TURN_ON(noexcept)
#if CHECK_GCC_VERSION(7,1)
GCC_TURN_ON(noexcept-type)
#endif // 7.1
GCC_TURN_ON(non-virtual-dtor)
#if CHECK_GCC_VERSION(4,7)
GCC_TURN_ON(nonnull)
#endif // 4.7
#if CHECK_GCC_VERSION(6,1)
GCC_TURN_ON(null-dereference)
#endif // 6.1
GCC_TURN_ON(old-style-cast)
GCC_TURN_ON(overlength-strings)
GCC_TURN_ON(overloaded-virtual)
GCC_TURN_ON(packed)
GCC_TURN_ON(packed-bitfield-compat)
GCC_TURN_ON(padded)
GCC_TURN_ON(parentheses)
#if CHECK_GCC_VERSION(9,1)
GCC_TURN_ON(pessimizing-move)
#endif // 9.1
GCC_TURN_ON(pointer-arith)
GCC_TURN_ON(redundant-decls)
#if CHECK_GCC_VERSION(10,1)
GCC_TURN_ON(redundant-tags)
#endif // 10.1
#if CHECK_GCC_VERSION(7,1)
GCC_TURN_ON(register)
#endif // 7.1
GCC_TURN_ON(reorder)
#if CHECK_GCC_VERSION(7,1)
GCC_TURN_ON(restrict)
#endif // 7.1
GCC_TURN_ON(return-type)
GCC_TURN_ON(sequence-point)
GCC_TURN_ON(shadow)
#if CHECK_GCC_VERSION(6,1)
GCC_TURN_ON(shift-negative-value)
#endif // 6.1
GCC_TURN_ON(sign-compare)
GCC_TURN_ON(sign-conversion)
GCC_TURN_ON(sign-promo)
GCC_TURN_ON(stack-protector)
GCC_TURN_ON(strict-aliasing)
GCC_TURN_ON(strict-null-sentinel)
GCC_TURN_ON(strict-overflow)
#if CHECK_GCC_VERSION(10,1)
GCC_TURN_ON(string-compare)
#endif // 10.1
#if CHECK_GCC_VERSION(8,1)
GCC_TURN_ON(stringop-truncation)
#endif // 8.1
#if CHECK_GCC_VERSION(8,1)
GCC_TURN_ON(suggest-attribute=cold)
#endif // 8.1
GCC_TURN_ON(suggest-attribute=const)
#if CHECK_GCC_VERSION(4,8)
GCC_TURN_ON(suggest-attribute=format)
#endif // 4.8
#if CHECK_GCC_VERSION(8,1)
GCC_TURN_ON(suggest-attribute=malloc)
#endif // 8.1
GCC_TURN_ON(suggest-attribute=noreturn)
GCC_TURN_ON(suggest-attribute=pure)
#if CHECK_GCC_VERSION(5,1)
GCC_TURN_ON(suggest-final-methods)
#endif // 5.1
#if CHECK_GCC_VERSION(5,1)
GCC_TURN_ON(suggest-final-types)
#endif // 5.1
#if CHECK_GCC_VERSION(5,1)
GCC_TURN_ON(suggest-override)
#endif // 5.1
GCC_TURN_ON(switch)
GCC_TURN_ON(switch-default)
GCC_TURN_ON(switch-enum)
GCC_TURN_ON(synth)
#if CHECK_GCC_VERSION(6,1)
GCC_TURN_ON(templates)
#endif // 6.1
GCC_TURN_ON(trampolines)
GCC_TURN_ON(trigraphs)
GCC_TURN_ON(type-limits)
GCC_TURN_ON(undef)
GCC_TURN_ON(uninitialized)
GCC_TURN_ON(unknown-pragmas)
GCC_TURN_ON(unreachable-code)
GCC_TURN_ON(unsafe-loop-optimizations)
GCC_TURN_ON(unused)
GCC_TURN_ON(unused-but-set-parameter)
GCC_TURN_ON(unused-but-set-variable)
GCC_TURN_ON(unused-function)
GCC_TURN_ON(unused-label)
#if CHECK_GCC_VERSION(4,7)
GCC_TURN_ON(unused-local-typedefs)
#endif // 4.7
GCC_TURN_ON(unused-macros)
GCC_TURN_ON(unused-parameter)
GCC_TURN_ON(unused-value)
GCC_TURN_ON(unused-variable)
#if CHECK_GCC_VERSION(4,8)
GCC_TURN_ON(useless-cast)
#endif // 4.8
GCC_TURN_ON(variadic-macros)
#if CHECK_GCC_VERSION(4,7)
GCC_TURN_ON(vector-operation-performance)
#endif // 4.7
#if CHECK_GCC_VERSION(6,1)
GCC_TURN_ON(virtual-inheritance)
#endif // 6.1
GCC_TURN_ON(vla)
#if CHECK_GCC_VERSION(10,1)
GCC_TURN_ON(volatile)
#endif // 10.1
GCC_TURN_ON(volatile-register-var)
GCC_TURN_ON(write-strings)
#if CHECK_GCC_VERSION(4,7)
GCC_TURN_ON(zero-as-null-pointer-constant)
#endif // 4.7
// }}}
#undef GCC_TURN_ON
/*
Some warnings still must be disabled, so turn them back off explicitly:
*/
// Those are potentially useful warnings, but there are just too many
// occurrences of them in our code currently.
GCC_TURN_OFF(conversion)
GCC_TURN_OFF(sign-compare)
GCC_TURN_OFF(sign-conversion)
GCC_TURN_OFF(old-style-cast)
#if CHECK_GCC_VERSION(4,8)
GCC_TURN_OFF(useless-cast)
#endif // 4.8
#if CHECK_GCC_VERSION(10,1)
GCC_TURN_OFF(redundant-tags) // "struct tm" triggers this
#endif // 10.1
// This one is given for NULL, and not just literal 0, up to gcc 10, and so
// has to remain disabled for as long as we use any NULLs in our code.
#if CHECK_GCC_VERSION(4,7) && !CHECK_GCC_VERSION(10,1)
GCC_TURN_OFF(zero-as-null-pointer-constant)
#endif
// These ones could be useful to explore, but for now we don't use "final"
// at all anywhere.
#if CHECK_GCC_VERSION(5,1)
GCC_TURN_OFF(suggest-final-methods)
GCC_TURN_OFF(suggest-final-types)
#endif // 5.1
// wxWARNING_SUPPRESS_MISSING_OVERRIDE() inside wxRTTI macros is just
// ignored by gcc up to 9.x for some reason, so we have no choice but to
// disable it.
#if CHECK_GCC_VERSION(5,1) && !CHECK_GCC_VERSION(9,0)
GCC_TURN_OFF(suggest-override)
#endif
// The rest are the warnings that we don't ever want to enable.
// This one is given whenever inheriting from std:: classes without using
// C++11 ABI tag explicitly, probably harmless.
#if CHECK_GCC_VERSION(4,8)
GCC_TURN_OFF(abi-tag)
#endif // 4.8
// This can be used to ask the compiler to explain why some function is not
// inlined, but it's perfectly normal for some functions not to be inlined.
GCC_TURN_OFF(inline)
// All those are about using perfectly normal C++ features that are
// actually used in our code.
GCC_TURN_OFF(aggregate-return)
GCC_TURN_OFF(long-long)
#if CHECK_GCC_VERSION(6,1)
GCC_TURN_OFF(namespaces)
GCC_TURN_OFF(multiple-inheritance)
GCC_TURN_OFF(templates)
#endif // 6.1
// This warns about missing "default" label in exhaustive switches over
// enums, so it's completely useless.
GCC_TURN_OFF(switch-default)
// We don't care about padding being added to our structs.
GCC_TURN_OFF(padded)
#endif // gcc >= 4.6
// Do the same for clang too except here most of the useful warnings are
// already included in -Wall, so we just need a few more.
#ifdef CLANG_TURN_ON
CLANG_TURN_ON(all)
CLANG_TURN_ON(extra)
CLANG_TURN_ON(pedantic)
CLANG_TURN_ON(shorten-64-to-32)
// We use long long, variadic macros and empty macro arguments (which are a
// C99 extension) even in C++98 builds.
#if __cplusplus < 201103L
CLANG_TURN_OFF(c++11-long-long)
CLANG_TURN_OFF(variadic-macros)
CLANG_TURN_OFF(c99-extensions)
#endif
#endif // clang
// ANSI build hasn't been updated to work without implicit wxString encoding
// and never will be, as it will be removed soon anyhow. And in UTF-8-only
// build we actually want to use implicit encoding (UTF-8).
#if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
#define wxNO_IMPLICIT_WXSTRING_ENCODING
#endif
#include "testprec.h"
#include "allheaders.h"
// Check that using wx macros doesn't result in -Wsuggest-override or
// equivalent warnings in classes using and not using "override".
struct Base : wxEvtHandler
{
virtual ~Base() { }
virtual void Foo() { }
};
struct DerivedWithoutOverride : Base
{
void OnIdle(wxIdleEvent&) { }
wxDECLARE_DYNAMIC_CLASS_NO_COPY(DerivedWithoutOverride);
wxDECLARE_EVENT_TABLE();
};
struct DerivedWithOverride : Base
{
virtual void Foo() wxOVERRIDE { }
void OnIdle(wxIdleEvent&) { }
wxDECLARE_DYNAMIC_CLASS_NO_COPY(DerivedWithOverride);
wxDECLARE_EVENT_TABLE();
};
#ifdef GCC_TURN_OFF
// Just using REQUIRE() below triggers -Wparentheses, so avoid it.
GCC_TURN_OFF(parentheses)
#endif
TEST_CASE("wxNO_IMPLICIT_WXSTRING_ENCODING", "[string]")
{
wxString s = wxASCII_STR("Hello, ASCII");
REQUIRE(s == L"Hello, ASCII");
#ifdef TEST_IMPLICIT_WXSTRING_ENCODING
// Compilation of this should fail, because the macro
// wxNO_IMPLICIT_WXSTRING_ENCODING must be set
s = "Hello, implicit encoding";
#endif
}