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# C / C++ / MFC

 Re: error C2143 error C2059 Richard MacCutchan31-Jul-19 2:54 Richard MacCutchan 31-Jul-19 2:54
 Re: error C2143 error C2059 _Flaviu31-Jul-19 3:27 _Flaviu 31-Jul-19 3:27
 Re: error C2143 error C2059 Richard MacCutchan31-Jul-19 4:03 Richard MacCutchan 31-Jul-19 4:03
 Re: error C2143 error C2059 _Flaviu31-Jul-19 22:01 _Flaviu 31-Jul-19 22:01
 Re: error C2143 error C2059 k505431-Jul-19 5:39 k5054 31-Jul-19 5:39
 Re: error C2143 error C2059 _Flaviu31-Jul-19 21:06 _Flaviu 31-Jul-19 21:06
 Re: error C2143 error C2059 David Crow1-Aug-19 3:22 David Crow 1-Aug-19 3:22
 Re: error C2143 error C2059 k50541-Aug-19 4:28 k5054 1-Aug-19 4:28
 David Crow wrote:bool equals( struct foo f ) { // this is not the preferred method for comparing floating-point values return (this->s == f.s) && (this->d == f.d); } I use `fabs(v1 - v2) < delta`. Its OK to compare a floating point value against zero, but other comparisons may produce unexpected results. e.g. ```\$ cat ex.c #include int main() { double d = 0.0; const double one = 1.0; for(size_t i = 0; i < 100; ++i) d += 0.01; // we would expect d now to be 1.0, but ... printf("d = %8.6f\n", d); // output looks like 1.000000 printf("d == 1.0 => %d\n", d == one); // but comparison fails printf("1.0 - d = %g\n", one -d); // there's a very small diff btwn d and 1.0 return 0; } \$ ./ex d = 1.000000 d == 1.0 => 0 1.0 - d = -6.66134e-16 \$ ```
 Re: error C2143 error C2059 k50541-Aug-19 3:57 k5054 1-Aug-19 3:57
 Re: error C2143 error C2059 Richard MacCutchan31-Jul-19 21:32 Richard MacCutchan 31-Jul-19 21:32
 Re: error C2143 error C2059 Peter_in_27801-Aug-19 0:53 Peter_in_2780 1-Aug-19 0:53
 Re: error C2143 error C2059 Richard MacCutchan1-Aug-19 1:31 Richard MacCutchan 1-Aug-19 1:31
 Best way to call REST Service from C++ ptr_Electron24-Jul-19 22:50 ptr_Electron 24-Jul-19 22:50
 Re: Best way to call REST Service from C++ Gerry Schmitz25-Jul-19 2:49 Gerry Schmitz 25-Jul-19 2:49
 Re: Best way to call REST Service from C++ Richard MacCutchan25-Jul-19 3:52 Richard MacCutchan 25-Jul-19 3:52
 Re: Best way to call REST Service from C++ Gerry Schmitz25-Jul-19 10:13 Gerry Schmitz 25-Jul-19 10:13
 Re: Best way to call REST Service from C++ Richard MacCutchan25-Jul-19 22:31 Richard MacCutchan 25-Jul-19 22:31
 Re: Best way to call REST Service from C++ Gerry Schmitz25-Jul-19 22:48 Gerry Schmitz 25-Jul-19 22:48
 Re: Best way to call REST Service from C++ Richard MacCutchan25-Jul-19 23:29 Richard MacCutchan 25-Jul-19 23:29
 Re: Best way to call REST Service from C++ Gerry Schmitz26-Jul-19 5:12 Gerry Schmitz 26-Jul-19 5:12
 Call C functions from VC++ _Flaviu17-Jul-19 22:20 _Flaviu 17-Jul-19 22:20
 Re: Call C functions from VC++ phil.o17-Jul-19 23:19 phil.o 17-Jul-19 23:19
 Re: Call C functions from VC++ _Flaviu18-Jul-19 0:19 _Flaviu 18-Jul-19 0:19
 Re: Call C functions from VC++ phil.o18-Jul-19 0:25 phil.o 18-Jul-19 0:25
 Re: Call C functions from VC++ Richard MacCutchan18-Jul-19 0:36 Richard MacCutchan 18-Jul-19 0:36
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