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/* This D file is implicitly imported by all ImportC source files.
* It provides definitions for C compiler builtin functions and declarations.
* The purpose is to make it unnecessary to hardwire them into the compiler.
* As the leading double underscore suggests, this is for internal use only.
*
* Copyright: Copyright Digital Mars 2022
* License: $(HTTP www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
* Authors: Walter Bright
* Source: $(DRUNTIMESRC __builtins.d)
*/
module __builtins;
/* gcc relies on internal __builtin_xxxx functions and templates to
* accomplish <stdarg.h>. D does the same thing with templates in core.stdc.stdarg.
* Here, we redirect the gcc builtin declarations to the equivalent
* ones in core.stdc.stdarg, thereby avoiding having to hardware them
* into the D compiler.
*/
import core.stdc.stdarg;
alias va_list = core.stdc.stdarg.va_list;
version (Posix)
{
version (X86_64)
alias __va_list_tag = core.stdc.stdarg.__va_list_tag;
}
alias __builtin_va_start = core.stdc.stdarg.va_start;
alias __builtin_va_end = core.stdc.stdarg.va_end;
alias __builtin_va_copy = core.stdc.stdarg.va_copy;
/* dmd's ImportC rewrites __builtin_va_arg into an instantiation of va_arg
*/
alias va_arg = core.stdc.stdarg.va_arg;
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