[109] | 1 | #include "nonstd_math.h" |
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| 2 | |
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| 3 | RandomGenerator& rndGetInstance() |
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| 4 | { |
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| 5 | static RandomGenerator rnd(0); |
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| 6 | return rnd; |
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| 7 | } |
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| 8 | |
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| 9 | |
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| 10 | |
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| 11 | |
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| 12 | #ifdef _WIN32 //http://stackoverflow.com/questions/2170385/c-math-functions |
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| 13 | double round(double val) |
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| 14 | { |
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| 15 | return floor(val + 0.5); |
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| 16 | } |
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| 17 | #endif |
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| 18 | |
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| 19 | |
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| 20 | |
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| 21 | |
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| 22 | #if defined LINUX || defined TIZEN |
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| 23 | |
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| 24 | #include <fenv.h> |
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| 25 | |
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| 26 | void fpExceptInit() |
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| 27 | {} |
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| 28 | |
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| 29 | void fpExceptEnable() |
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| 30 | { |
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| 31 | feclearexcept(FE_DIVBYZERO | FE_OVERFLOW); |
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| 32 | feenableexcept(FE_DIVBYZERO | FE_OVERFLOW); |
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| 33 | } |
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| 34 | |
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| 35 | void fpExceptDisable() |
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| 36 | { |
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| 37 | fedisableexcept(FE_DIVBYZERO | FE_OVERFLOW); |
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| 38 | } |
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| 39 | |
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| 40 | #endif |
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| 41 | |
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| 42 | |
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| 43 | #ifdef IPHONE |
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| 44 | |
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| 45 | #include <fenv.h> |
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| 46 | |
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| 47 | void fpExceptInit() |
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| 48 | {} |
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| 49 | |
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| 50 | void fpExceptEnable() |
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| 51 | { |
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| 52 | feclearexcept(FE_DIVBYZERO | FE_OVERFLOW); |
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| 53 | //feenableexcept(FE_DIVBYZERO | FE_OVERFLOW); |
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| 54 | } |
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| 55 | |
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| 56 | void fpExceptDisable() |
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| 57 | { |
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| 58 | //fedisableexcept(FE_DIVBYZERO | FE_OVERFLOW); |
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| 59 | } |
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| 60 | #endif |
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| 61 | |
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| 62 | |
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| 63 | #ifdef __BORLANDC__ |
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| 64 | |
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| 65 | #include "framsg.h" |
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| 66 | |
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| 67 | unsigned int fp_control_word_std; |
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| 68 | unsigned int fp_control_word_muted; |
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| 69 | |
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| 70 | void fpExceptInit() |
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| 71 | { |
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| 72 | //unsigned int was=_clear87(); |
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| 73 | //FMprintf("","fpExceptInit",FMLV_INFO,"control87 status before clear was %08x", was); |
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| 74 | fp_control_word_std=_control87(0, 0); //4978 = 1001101110010 |
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| 75 | // Make the new fp env same as the old one, except for the changes we're going to make |
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| 76 | fp_control_word_muted = fp_control_word_std | EM_INVALID | EM_DENORMAL | EM_ZERODIVIDE | EM_OVERFLOW | EM_UNDERFLOW | EM_INEXACT; //4991 = 1001101111111 |
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| 77 | } |
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| 78 | |
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| 79 | void fpExceptEnable() |
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| 80 | { |
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| 81 | unsigned int was=_clear87(); //trzeba czyscic zeby nie bylo exception... |
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| 82 | //FMprintf("","fpExceptEnable ",FMLV_INFO,"control87 status before clear was %08x", was); |
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| 83 | _control87(fp_control_word_std, 0xffffffff); |
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| 84 | //FMprintf("","fpExceptEnable ",FMLV_INFO,"control87 flags are %08x", _control87(0, 0)); //kontrola co sie ustawilo |
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| 85 | } |
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| 86 | |
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| 87 | void fpExceptDisable() |
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| 88 | { |
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| 89 | unsigned int was=_clear87(); //trzeba czyscic zeby nie bylo exception... |
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| 90 | //FMprintf("","fpExceptDisable",FMLV_INFO,"control87 status before clear was %08x", was); |
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| 91 | _control87(fp_control_word_muted, 0xffffffff); |
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| 92 | //FMprintf("","fpExceptDisable",FMLV_INFO,"control87 flags are %08x", _control87(0, 0)); //kontrola co sie ustawilo |
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| 93 | } |
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| 94 | |
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| 95 | #endif |
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| 96 | |
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| 97 | |
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| 98 | |
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| 99 | #ifdef _MSC_VER |
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| 100 | //Moznaby zrobic tak jak pod linuxem czyli wlaczyc exceptiony na poczatku i wylaczac na chwile przy dzieleniu w extvalue. |
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| 101 | //To by pozwoli³o na wy³apanie pod visualem z³ych sytuacji kiedy framsy licz¹ na NaN, INF itp. |
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| 102 | //http://stackoverflow.com/questions/2769814/how-do-i-use-try-catch-to-catch-floating-point-errors |
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| 103 | void fpExceptInit() {} |
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| 104 | void fpExceptEnable() {} |
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| 105 | void fpExceptDisable() {} |
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| 106 | #endif |
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| 107 | |
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