1 /*
2  * This file is part of the DXX-Rebirth project <https://www.dxx-rebirth.com/>.
3  * It is copyright by its individual contributors, as recorded in the
4  * project's Git history.  See COPYING.txt at the top level for license
5  * terms and a link to the Git history.
6  */
7 #pragma once
8 
9 #include "dxxsconf.h"
10 
11 #define _dxx_call_puts_parameter2(A,B,...)	B
12 
13 #define DXX_CALL_PRINTF_UNWRAP_ARGS_(...)	, ## __VA_ARGS__
14 #define DXX_CALL_PRINTF_DELETE_COMMA2_(A,...)	__VA_ARGS__
15 #define DXX_CALL_PRINTF_DELETE_COMMA_(A,...)	DXX_CALL_PRINTF_DELETE_COMMA2_( A , ## __VA_ARGS__ )
16 
17 #ifdef DXX_CONSTANT_TRUE
18 #define DXX_PRINTF_CHECK_HAS_NONTRIVIAL_FORMAT_STRING_(V,P,FMT)	\
19 	static_cast<void>(DXX_CONSTANT_TRUE((FMT) && (FMT)[0] == '%' && (FMT)[1] == 's' && (FMT)[2] == 0) &&	\
20 		(DXX_ALWAYS_ERROR_FUNCTION(dxx_trap_trivial_string_specifier_argument_##V, "bare %s argument to " #V "; use " #P " directly"), 0))
21 #else
22 #define DXX_PRINTF_CHECK_HAS_NONTRIVIAL_FORMAT_STRING_(V,P,FMT)	\
23 	((void)(FMT))
24 #endif
25 
26 #define dxx_call_printf_checked(V,P,A,FMT,...)	\
27 	(	\
28 		DXX_PRINTF_CHECK_HAS_NONTRIVIAL_FORMAT_STRING_(V, P, FMT),	\
29 		(sizeof(#__VA_ARGS__) == 1)	?	\
30 			(P(DXX_CALL_PRINTF_DELETE_COMMA_(1 DXX_CALL_PRINTF_UNWRAP_ARGS_ A, FMT))) :	\
31 		(V(DXX_CALL_PRINTF_DELETE_COMMA_(1 DXX_CALL_PRINTF_UNWRAP_ARGS_ A, FMT) ,##__VA_ARGS__))	\
32 	)
33