1 /* Auxiliary PDCLib code <_PDCLIB_aux.h>
3 This file is part of the Public Domain C Library (PDCLib).
4 Permission is granted to use, modify, and / or redistribute at will.
8 #define _PDCLIB_AUX_H _PDCLIB_AUX_H
10 /* -------------------------------------------------------------------------- */
11 /* You should not have to edit anything in this file; if you DO have to, it */
12 /* would be considered a bug / missing feature: notify the author(s). */
13 /* -------------------------------------------------------------------------- */
15 /* -------------------------------------------------------------------------- */
16 /* Standard Version */
17 /* -------------------------------------------------------------------------- */
19 /* Many a compiler gets this wrong, so you might have to hardcode it instead. */
22 #error Compiler does not define _ _STDC_ _ to 1 (not standard-compliant)!
25 #if __STDC_VERSION__ < 199901L
26 #define _PDCLIB_restrict
27 #define _PDCLIB_inline
28 #error PDCLib might not be fully conforming to either C89 or C95 prior to v2.x.
30 #define _PDCLIB_restrict restrict
31 #define _PDCLIB_inline inline
34 #ifndef __STDC_HOSTED__
35 #error Compiler does not define _ _STDC_HOSTED_ _ (not standard-compliant)!
36 #elif __STDC_HOSTED__ == 0
37 #define _PDCLIB_HOSTED 0
38 #elif __STDC_HOSTED__ == 1
39 #define _PDCLIB_HOSTED 1
41 #error Compiler does not define _ _STDC_HOSTED_ _ to 0 or 1 (not standard-compliant)!
44 /* -------------------------------------------------------------------------- */
46 /* _PDCLIB_cc( x, y ) concatenates two preprocessor tokens without extending */
47 /* _PDCLIB_concat( x, y ) concatenates two preprocessor tokens with extending */
48 /* _PDCLIB_static_assert( e, m ) does a compile-time assertion of expression */
49 /* e, with m as the failure message. */
50 /* -------------------------------------------------------------------------- */
52 #define _PDCLIB_cc( x, y ) x ## y
53 #define _PDCLIB_concat( x, y ) _PDCLIB_cc( x, y )
55 #define _PDCLIB_static_assert( e, m ) enum { _PDCLIB_concat( _PDCLIB_assert_, __LINE__ ) = 1 / ( !!(e) ) }
57 #define _PDCLIB_symbol2value( x ) #x
58 #define _PDCLIB_symbol2string( x ) _PDCLIB_symbol2value( x )