problem with char * and unsigned long
Code:unsigned long lPid; lPid = argv[0];
funcs.h(453) : error C2440: '=' : cannot convert from 'char *' to 'unsigned long'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
argv[0] cant be changed to any other type.
is there any way to do convert?
Mouse
I think
orCode:unsigned long lPid; (char*)lPid=argv[0]
at least I think that. I would play around with casting.Code:char* lPid; lPid=argv[0] (unsigned long)lPid (Whatever code goes here)
But I wouldnt see why you would do that.
to convert a string to long use strtol.
Code:#include <cmath> #include <complex> bool euler_flip(bool value) { return std::pow ( std::complex<float>(std::exp(1.0)), std::complex<float>(0, 1) * std::complex<float>(std::atan(1.0) *(1 << (value + 2))) ).real() < 0; }
Don't cast it, that won't convert the string to its corresponding integer value.
To convert a string to a long, see the FAQ. The short answer is to use a stringstream, strtol or atoi.
You probably want argv[1].
Code:stringstream s; unsigned long lPid; s << argv[1]; s >> lPid;
