I am trying to use qudruple precision on a C/C++ programme using the extended option of the Compiler but I get problems. The following code
void get_half_pi(long double);
int main(int argc, char *argv)
_Quad Pi=3.14159265358979323846q, zz;
printf("\\n C++ version:");
printf("\\n Pi = %23.20Lf %032llx\\n", (long double)Pi, Pi);
zz = __atanq(1.0q);
give me a problem in the sentence zz = __atanq(1.0q). I am using the compiler flag:
The compiler is able to compile and link the programme and it produce an .exe file. However, in the execution the programme experiences a crash in that sentence because __atanq is unknown. Please, would anybody give me a solution to this problem?
I am working in a Windows 7 machine.
Thanks a lot.