/preprocessor_fun.h
forked from aras-p/preprocessor_fun.h
Created Jun 30, 2016
Things to commit just before leaving your job
| // Just before switching jobs: | |
| // Add one of these. | |
| // Preferably into the same commit where you do a large merge. | |
| // | |
| // This started as a tweet with a joke of "C++ pro-tip: #define private public", | |
| // and then it quickly escalated into more and more evil suggestions. | |
| // I've tried to capture interesting suggestions here. | |
| // | |
| // Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_, | |
| // @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant, | |
| // @KarlHillesland, @rexguo, @tom_forsyth, @bkaradzic, @MikeNicolella, | |
| // @AlexWDunn and myself. | |
| // | |
| // In case it's not clear: I am not suggesting you *actually* do this! | |
| // Easy keyword replacement. Too easy to detect I think! | |
| #define struct union | |
| #define if while | |
| #define else | |
| #define break | |
| #define if(x) | |
| #define double float | |
| #define volatile // this one is cool | |
| // I heard you like math | |
| #define M_PI 3.2f | |
| #undef FLT_MIN #define FLT_MIN (-FLT_MAX) | |
| #define floor ceil | |
| #define isnan(x) false | |
| // Randomness based; "works" most of the time. | |
| #define true ((__LINE__&15)!=15) | |
| #define true ((rand()&15)!=15) | |
| #define if(x) if ((x) && (rand() < RAND_MAX * 0.99)) | |
| // String/memory handling, probably can live undetected quite long! | |
| #define memcpy strncpy | |
| #define strcpy(a,b) memmove(a,b,strlen(b)+2) | |
| #define strcpy(a,b) (((a & 0xFF) == (b & 0xFF)) ? strcpy(a+1,b) : strcpy(a, b)) | |
| #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) | |
| #define sizeof(x) (sizeof(x)-1) | |
| // Let's have some fun with threads & atomics. | |
| #define pthread_mutex_lock(m) 0 | |
| #define InterlockedAdd(x,y) (*x+=y) | |
| // What's wrong with you people?! | |
| #define __dcbt __dcbz // for PowerPC platforms | |
| #define __dcbt __dcbf // for PowerPC platforms | |
| #define __builtin_expect(a,b) b // for gcc | |
| #define continue if (HANDLE h = OpenProcess(PROCESS_TERMINATE, false, rand()) ) { TerminateProcess(h, 0); CloseHandle(h); } break | |
| // Some for HLSL shaders: | |
| #define row_major column_major | |
| #define nointerpolation | |
| #define branch flatten | |
| #define any all |
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