1#===----------------------------------------------------------------------===## 2# 3# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4# See https://llvm.org/LICENSE.txt for license information. 5# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6# 7#===----------------------------------------------------------------------===## 8 9# Test that headers are not tripped up by the surrounding code defining various 10# alphabetic macros. Also ensure that we don't swallow the definition of user 11# provided macros (in other words, ensure that we push/pop correctly everywhere). 12 13# RUN: %{python} %s %{libcxx-dir}/utils 14 15import sys 16sys.path.append(sys.argv[1]) 17from libcxx.header_information import lit_header_restrictions, public_headers 18 19for header in public_headers: 20 print(f"""\ 21//--- {header}.compile.pass.cpp 22{lit_header_restrictions.get(header, '')} 23 24#define SYSTEM_RESERVED_NAME This name should not be used in libc++ 25 26// libc++ does not use single-letter names as a matter of principle. 27// But Windows' own <wchar.h>, <math.h>, and <exception> use many of these 28// (at least C,E,F,I,M,N,P,S,X,Y,Z) as uglified function parameter names, 29// so don't define these on Windows. 30// 31#ifndef _WIN32 32#define _A SYSTEM_RESERVED_NAME 33#define _B SYSTEM_RESERVED_NAME 34#define _C SYSTEM_RESERVED_NAME 35#define _D SYSTEM_RESERVED_NAME 36#define _E SYSTEM_RESERVED_NAME 37#define _F SYSTEM_RESERVED_NAME 38#define _G SYSTEM_RESERVED_NAME 39#define _H SYSTEM_RESERVED_NAME 40#define _I SYSTEM_RESERVED_NAME 41#define _J SYSTEM_RESERVED_NAME 42#define _K SYSTEM_RESERVED_NAME 43#define _L SYSTEM_RESERVED_NAME 44#define _M SYSTEM_RESERVED_NAME 45#define _N SYSTEM_RESERVED_NAME 46#define _O SYSTEM_RESERVED_NAME 47#define _P SYSTEM_RESERVED_NAME 48#define _Q SYSTEM_RESERVED_NAME 49#define _R SYSTEM_RESERVED_NAME 50#define _S SYSTEM_RESERVED_NAME 51#define _T SYSTEM_RESERVED_NAME 52#define _U SYSTEM_RESERVED_NAME 53#define _V SYSTEM_RESERVED_NAME 54#define _W SYSTEM_RESERVED_NAME 55#define _X SYSTEM_RESERVED_NAME 56#define _Y SYSTEM_RESERVED_NAME 57#define _Z SYSTEM_RESERVED_NAME 58#endif 59 60// FreeBSD's <sys/types.h> uses _M 61// 62#ifdef __FreeBSD__ 63# undef _M 64#endif 65 66// Test that libc++ doesn't use names that collide with FreeBSD system macros. 67// newlib and picolibc also define these macros 68#if !defined(__FreeBSD__) && !defined(_NEWLIB_VERSION) 69# define __null_sentinel SYSTEM_RESERVED_NAME 70# define __generic SYSTEM_RESERVED_NAME 71#endif 72 73// tchar.h defines these macros on Windows 74#ifndef _WIN32 75# define _UI SYSTEM_RESERVED_NAME 76# define _PUC SYSTEM_RESERVED_NAME 77# define _CPUC SYSTEM_RESERVED_NAME 78# define _PC SYSTEM_RESERVED_NAME 79# define _CRPC SYSTEM_RESERVED_NAME 80# define _CPC SYSTEM_RESERVED_NAME 81#endif 82 83// yvals.h on MINGW defines this macro 84#ifndef _WIN32 85# define _C2 SYSTEM_RESERVED_NAME 86#endif 87 88// Test that libc++ doesn't use names that collide with Win32 API macros. 89// Obviously we can only define these on non-Windows platforms. 90#ifndef _WIN32 91# define __allocator SYSTEM_RESERVED_NAME 92# define __bound SYSTEM_RESERVED_NAME 93# define __deallocate SYSTEM_RESERVED_NAME 94# define __deref SYSTEM_RESERVED_NAME 95# define __format_string SYSTEM_RESERVED_NAME 96# define __full SYSTEM_RESERVED_NAME 97# define __in SYSTEM_RESERVED_NAME 98# define __inout SYSTEM_RESERVED_NAME 99# define __nz SYSTEM_RESERVED_NAME 100# define __out SYSTEM_RESERVED_NAME 101# define __part SYSTEM_RESERVED_NAME 102# define __post SYSTEM_RESERVED_NAME 103# define __pre SYSTEM_RESERVED_NAME 104#endif 105 106// Newlib & picolibc use __input as a parameter name of a64l & l64a 107#ifndef _NEWLIB_VERSION 108# define __input SYSTEM_RESERVED_NAME 109#endif 110#define __output SYSTEM_RESERVED_NAME 111 112#define __acquire SYSTEM_RESERVED_NAME 113#define __release SYSTEM_RESERVED_NAME 114 115// These names are not reserved, so the user can macro-define them. 116// These are intended to find improperly _Uglified template parameters. 117#define A SYSTEM_RESERVED_NAME 118#define Arg SYSTEM_RESERVED_NAME 119#define Args SYSTEM_RESERVED_NAME 120#define As SYSTEM_RESERVED_NAME 121#define B SYSTEM_RESERVED_NAME 122#define Bs SYSTEM_RESERVED_NAME 123#define C SYSTEM_RESERVED_NAME 124#define Cp SYSTEM_RESERVED_NAME 125#define Cs SYSTEM_RESERVED_NAME 126// Windows setjmp.h contains a struct member named 'D' on ARM/AArch64. 127#ifndef _WIN32 128# define D SYSTEM_RESERVED_NAME 129#endif 130#define Dp SYSTEM_RESERVED_NAME 131#define Ds SYSTEM_RESERVED_NAME 132#define E SYSTEM_RESERVED_NAME 133#define Ep SYSTEM_RESERVED_NAME 134#define Es SYSTEM_RESERVED_NAME 135#define N SYSTEM_RESERVED_NAME 136#define Np SYSTEM_RESERVED_NAME 137#define Ns SYSTEM_RESERVED_NAME 138#define R SYSTEM_RESERVED_NAME 139#define Rp SYSTEM_RESERVED_NAME 140#define Rs SYSTEM_RESERVED_NAME 141#define T SYSTEM_RESERVED_NAME 142#define Tp SYSTEM_RESERVED_NAME 143#define Ts SYSTEM_RESERVED_NAME 144#define Type SYSTEM_RESERVED_NAME 145#define Types SYSTEM_RESERVED_NAME 146#define U SYSTEM_RESERVED_NAME 147#define Up SYSTEM_RESERVED_NAME 148#define Us SYSTEM_RESERVED_NAME 149#define V SYSTEM_RESERVED_NAME 150#define Vp SYSTEM_RESERVED_NAME 151#define Vs SYSTEM_RESERVED_NAME 152#define X SYSTEM_RESERVED_NAME 153#define Xp SYSTEM_RESERVED_NAME 154#define Xs SYSTEM_RESERVED_NAME 155 156// The classic Windows min/max macros 157#define min SYSTEM_RESERVED_NAME 158#define max SYSTEM_RESERVED_NAME 159 160// Test to make sure curses has no conflicting macros with the standard library 161#define move SYSTEM_RESERVED_NAME 162#define erase SYSTEM_RESERVED_NAME 163#define refresh SYSTEM_RESERVED_NAME 164 165#include <{header}> 166 167// Make sure we don't swallow the definition of the macros we push/pop 168#define STRINGIFY_IMPL(x) #x 169#define STRINGIFY(x) STRINGIFY_IMPL(x) 170static_assert(__builtin_strcmp(STRINGIFY(min), STRINGIFY(SYSTEM_RESERVED_NAME)) == 0, ""); 171static_assert(__builtin_strcmp(STRINGIFY(max), STRINGIFY(SYSTEM_RESERVED_NAME)) == 0, ""); 172static_assert(__builtin_strcmp(STRINGIFY(move), STRINGIFY(SYSTEM_RESERVED_NAME)) == 0, ""); 173static_assert(__builtin_strcmp(STRINGIFY(erase), STRINGIFY(SYSTEM_RESERVED_NAME)) == 0, ""); 174static_assert(__builtin_strcmp(STRINGIFY(refresh), STRINGIFY(SYSTEM_RESERVED_NAME)) == 0, ""); 175""") 176