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 16 17sys.path.append(sys.argv[1]) 18from libcxx.header_information import ( 19 lit_header_restrictions, 20 lit_header_undeprecations, 21 public_headers, 22) 23 24for header in public_headers: 25 print( 26 f"""\ 27//--- {header}.compile.pass.cpp 28{lit_header_restrictions.get(header, '')} 29{lit_header_undeprecations.get(header, '')} 30 31#define SYSTEM_RESERVED_NAME This name should not be used in libc++ 32 33// libc++ does not use single-letter names as a matter of principle. 34// But Windows' own <wchar.h>, <math.h>, and <exception> use many of these 35// (at least C,E,F,I,M,N,P,S,X,Y,Z) as uglified function parameter names, 36// so don't define these on Windows. 37// 38#ifndef _WIN32 39#define _A SYSTEM_RESERVED_NAME 40#define _B SYSTEM_RESERVED_NAME 41#define _C SYSTEM_RESERVED_NAME 42#define _D SYSTEM_RESERVED_NAME 43#define _E SYSTEM_RESERVED_NAME 44#define _F SYSTEM_RESERVED_NAME 45#define _G SYSTEM_RESERVED_NAME 46#define _H SYSTEM_RESERVED_NAME 47#define _I SYSTEM_RESERVED_NAME 48#define _J SYSTEM_RESERVED_NAME 49#define _K SYSTEM_RESERVED_NAME 50#define _L SYSTEM_RESERVED_NAME 51#define _M SYSTEM_RESERVED_NAME 52#define _N SYSTEM_RESERVED_NAME 53#define _O SYSTEM_RESERVED_NAME 54#define _P SYSTEM_RESERVED_NAME 55#define _Q SYSTEM_RESERVED_NAME 56#define _R SYSTEM_RESERVED_NAME 57#define _S SYSTEM_RESERVED_NAME 58#define _T SYSTEM_RESERVED_NAME 59#define _U SYSTEM_RESERVED_NAME 60#define _V SYSTEM_RESERVED_NAME 61#define _W SYSTEM_RESERVED_NAME 62#define _X SYSTEM_RESERVED_NAME 63#define _Y SYSTEM_RESERVED_NAME 64#define _Z SYSTEM_RESERVED_NAME 65#endif 66 67// FreeBSD's <sys/types.h> uses _M 68// 69#ifdef __FreeBSD__ 70# undef _M 71#endif 72 73// Test that libc++ doesn't use names that collide with FreeBSD system macros. 74// newlib and picolibc also define these macros 75#if !defined(__FreeBSD__) && !defined(_NEWLIB_VERSION) 76# define __null_sentinel SYSTEM_RESERVED_NAME 77# define __generic SYSTEM_RESERVED_NAME 78#endif 79 80// tchar.h defines these macros on Windows 81#ifndef _WIN32 82# define _UI SYSTEM_RESERVED_NAME 83# define _PUC SYSTEM_RESERVED_NAME 84# define _CPUC SYSTEM_RESERVED_NAME 85# define _PC SYSTEM_RESERVED_NAME 86# define _CRPC SYSTEM_RESERVED_NAME 87# define _CPC SYSTEM_RESERVED_NAME 88#endif 89 90// yvals.h on MINGW defines this macro 91#ifndef _WIN32 92# define _C2 SYSTEM_RESERVED_NAME 93#endif 94 95// Test that libc++ doesn't use names that collide with Win32 API macros. 96// Obviously we can only define these on non-Windows platforms. 97#ifndef _WIN32 98# define __allocator SYSTEM_RESERVED_NAME 99# define __bound SYSTEM_RESERVED_NAME 100# define __deallocate SYSTEM_RESERVED_NAME 101# define __deref SYSTEM_RESERVED_NAME 102# define __format_string SYSTEM_RESERVED_NAME 103# define __full SYSTEM_RESERVED_NAME 104# define __in SYSTEM_RESERVED_NAME 105# define __inout SYSTEM_RESERVED_NAME 106# define __nz SYSTEM_RESERVED_NAME 107# define __out SYSTEM_RESERVED_NAME 108# define __part SYSTEM_RESERVED_NAME 109# define __post SYSTEM_RESERVED_NAME 110# define __pre SYSTEM_RESERVED_NAME 111#endif 112 113// Newlib & picolibc use __input as a parameter name of a64l & l64a 114#ifndef _NEWLIB_VERSION 115# define __input SYSTEM_RESERVED_NAME 116#endif 117#define __output SYSTEM_RESERVED_NAME 118 119#define __acquire SYSTEM_RESERVED_NAME 120#define __release SYSTEM_RESERVED_NAME 121 122// These names are not reserved, so the user can macro-define them. 123// These are intended to find improperly _Uglified template parameters. 124#define A SYSTEM_RESERVED_NAME 125#define Arg SYSTEM_RESERVED_NAME 126#define Args SYSTEM_RESERVED_NAME 127#define As SYSTEM_RESERVED_NAME 128#define B SYSTEM_RESERVED_NAME 129#define Bs SYSTEM_RESERVED_NAME 130#define C SYSTEM_RESERVED_NAME 131#define Cp SYSTEM_RESERVED_NAME 132#define Cs SYSTEM_RESERVED_NAME 133// Windows setjmp.h contains a struct member named 'D' on ARM/AArch64. 134#ifndef _WIN32 135# define D SYSTEM_RESERVED_NAME 136#endif 137#define Dp SYSTEM_RESERVED_NAME 138#define Ds SYSTEM_RESERVED_NAME 139#define E SYSTEM_RESERVED_NAME 140#define Ep SYSTEM_RESERVED_NAME 141#define Es SYSTEM_RESERVED_NAME 142#define N SYSTEM_RESERVED_NAME 143#define Np SYSTEM_RESERVED_NAME 144#define Ns SYSTEM_RESERVED_NAME 145#define R SYSTEM_RESERVED_NAME 146#define Rp SYSTEM_RESERVED_NAME 147#define Rs SYSTEM_RESERVED_NAME 148#define T SYSTEM_RESERVED_NAME 149#define Tp SYSTEM_RESERVED_NAME 150#define Ts SYSTEM_RESERVED_NAME 151#define Type SYSTEM_RESERVED_NAME 152#define Types SYSTEM_RESERVED_NAME 153#define U SYSTEM_RESERVED_NAME 154#define Up SYSTEM_RESERVED_NAME 155#define Us SYSTEM_RESERVED_NAME 156#define V SYSTEM_RESERVED_NAME 157#define Vp SYSTEM_RESERVED_NAME 158#define Vs SYSTEM_RESERVED_NAME 159#define X SYSTEM_RESERVED_NAME 160#define Xp SYSTEM_RESERVED_NAME 161#define Xs SYSTEM_RESERVED_NAME 162 163// The classic Windows min/max macros 164#define min SYSTEM_RESERVED_NAME 165#define max SYSTEM_RESERVED_NAME 166 167// Test to make sure curses has no conflicting macros with the standard library 168#define move SYSTEM_RESERVED_NAME 169#define erase SYSTEM_RESERVED_NAME 170#define refresh SYSTEM_RESERVED_NAME 171 172// Dinkumware libc ctype.h uses these definitions 173#define _XA SYSTEM_RESERVED_NAME 174#define _XS SYSTEM_RESERVED_NAME 175#define _BB SYSTEM_RESERVED_NAME 176#define _CN SYSTEM_RESERVED_NAME 177#define _DI SYSTEM_RESERVED_NAME 178#define _LO SYSTEM_RESERVED_NAME 179#define _PU SYSTEM_RESERVED_NAME 180#define _SP SYSTEM_RESERVED_NAME 181#define _UP SYSTEM_RESERVED_NAME 182#define _XD SYSTEM_RESERVED_NAME 183 184#include <{header}> 185 186// Make sure we don't swallow the definition of the macros we push/pop 187#define STRINGIFY_IMPL(x) #x 188#define STRINGIFY(x) STRINGIFY_IMPL(x) 189static_assert(__builtin_strcmp(STRINGIFY(min), STRINGIFY(SYSTEM_RESERVED_NAME)) == 0, ""); 190static_assert(__builtin_strcmp(STRINGIFY(max), STRINGIFY(SYSTEM_RESERVED_NAME)) == 0, ""); 191static_assert(__builtin_strcmp(STRINGIFY(move), STRINGIFY(SYSTEM_RESERVED_NAME)) == 0, ""); 192static_assert(__builtin_strcmp(STRINGIFY(erase), STRINGIFY(SYSTEM_RESERVED_NAME)) == 0, ""); 193static_assert(__builtin_strcmp(STRINGIFY(refresh), STRINGIFY(SYSTEM_RESERVED_NAME)) == 0, ""); 194""" 195 ) 196