10b57cec5SDimitry Andric /*===---- stdarg.h - Variable argument handling ----------------------------=== 20b57cec5SDimitry Andric * 30b57cec5SDimitry Andric * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40b57cec5SDimitry Andric * See https://llvm.org/LICENSE.txt for license information. 50b57cec5SDimitry Andric * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60b57cec5SDimitry Andric * 70b57cec5SDimitry Andric *===-----------------------------------------------------------------------=== 80b57cec5SDimitry Andric */ 90b57cec5SDimitry Andric 105f757f3fSDimitry Andric /* 115f757f3fSDimitry Andric * This header is designed to be included multiple times. If any of the __need_ 125f757f3fSDimitry Andric * macros are defined, then only that subset of interfaces are provided. This 135f757f3fSDimitry Andric * can be useful for POSIX headers that need to not expose all of stdarg.h, but 145f757f3fSDimitry Andric * need to use some of its interfaces. Otherwise this header provides all of 155f757f3fSDimitry Andric * the expected interfaces. 165f757f3fSDimitry Andric * 170fca6ea1SDimitry Andric * When clang modules are enabled, this header is a textual header to support 180fca6ea1SDimitry Andric * the multiple include behavior. As such, it doesn't directly declare anything 190fca6ea1SDimitry Andric * so that it doesn't add duplicate declarations to all of its includers' 200fca6ea1SDimitry Andric * modules. 215f757f3fSDimitry Andric */ 220fca6ea1SDimitry Andric #if defined(__MVS__) && __has_include_next(<stdarg.h>) 230fca6ea1SDimitry Andric #undef __need___va_list 240fca6ea1SDimitry Andric #undef __need_va_list 250fca6ea1SDimitry Andric #undef __need_va_arg 260fca6ea1SDimitry Andric #undef __need___va_copy 270fca6ea1SDimitry Andric #undef __need_va_copy 28*36b606aeSDimitry Andric #include <__stdarg_header_macro.h> 290fca6ea1SDimitry Andric #include_next <stdarg.h> 300b57cec5SDimitry Andric 310fca6ea1SDimitry Andric #else 325f757f3fSDimitry Andric #if !defined(__need___va_list) && !defined(__need_va_list) && \ 335f757f3fSDimitry Andric !defined(__need_va_arg) && !defined(__need___va_copy) && \ 345f757f3fSDimitry Andric !defined(__need_va_copy) 355f757f3fSDimitry Andric #define __need___va_list 365f757f3fSDimitry Andric #define __need_va_list 375f757f3fSDimitry Andric #define __need_va_arg 385f757f3fSDimitry Andric #define __need___va_copy 390b57cec5SDimitry Andric /* GCC always defines __va_copy, but does not define va_copy unless in c99 mode 400b57cec5SDimitry Andric * or -ansi is not specified, since it was not part of C90. 410b57cec5SDimitry Andric */ 42bdd1243dSDimitry Andric #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ 43bdd1243dSDimitry Andric (defined(__cplusplus) && __cplusplus >= 201103L) || \ 44bdd1243dSDimitry Andric !defined(__STRICT_ANSI__) 455f757f3fSDimitry Andric #define __need_va_copy 465f757f3fSDimitry Andric #endif 47*36b606aeSDimitry Andric #include <__stdarg_header_macro.h> 480b57cec5SDimitry Andric #endif 490b57cec5SDimitry Andric 505f757f3fSDimitry Andric #ifdef __need___va_list 515f757f3fSDimitry Andric #include <__stdarg___gnuc_va_list.h> 525f757f3fSDimitry Andric #undef __need___va_list 535f757f3fSDimitry Andric #endif /* defined(__need___va_list) */ 54bdd1243dSDimitry Andric 555f757f3fSDimitry Andric #ifdef __need_va_list 565f757f3fSDimitry Andric #include <__stdarg_va_list.h> 575f757f3fSDimitry Andric #undef __need_va_list 585f757f3fSDimitry Andric #endif /* defined(__need_va_list) */ 595f757f3fSDimitry Andric 605f757f3fSDimitry Andric #ifdef __need_va_arg 615f757f3fSDimitry Andric #include <__stdarg_va_arg.h> 625f757f3fSDimitry Andric #undef __need_va_arg 635f757f3fSDimitry Andric #endif /* defined(__need_va_arg) */ 645f757f3fSDimitry Andric 655f757f3fSDimitry Andric #ifdef __need___va_copy 665f757f3fSDimitry Andric #include <__stdarg___va_copy.h> 675f757f3fSDimitry Andric #undef __need___va_copy 685f757f3fSDimitry Andric #endif /* defined(__need___va_copy) */ 695f757f3fSDimitry Andric 705f757f3fSDimitry Andric #ifdef __need_va_copy 715f757f3fSDimitry Andric #include <__stdarg_va_copy.h> 725f757f3fSDimitry Andric #undef __need_va_copy 735f757f3fSDimitry Andric #endif /* defined(__need_va_copy) */ 745f757f3fSDimitry Andric 750fca6ea1SDimitry Andric #endif /* __MVS__ */ 76