void
cmoney_t::from_str (const std::string& in)
{
decContext set;
//char strbuff2[DECQUAD_String];
decContextDefault(&set, DEC_INIT_DECQUAD); // initialize4.
decQuadFromString( &v->impl,in.c_str(),&set);
}
int testDecQuad()
{
int i;
decQuad a, b;
decContext set;
char string[DECQUAD_String];
decContextDefault(&set, DEC_INIT_DECQUAD); // initialize
decQuadFromString(&a, "0.13", &set);
decQuadFromString(&b, "8.7", &set);
for (i = 0; i < 10; i++)
decQuadAdd(&b, &a, &b, &set); // b += a;
decQuadToString(&b, string);
printf("dec128: 8.7 + 0.13 * 10 => %s\n", string);
return 0;
}
void
cmoney_t::from_wstr (const std::wstring& in)
{
char utf8ASCIIstr[DECQUAD_String];
#ifdef WIN32
/*
int WideCharToMultiByte(
UINT CodePage,
DWORD dwFlags,
LPCWSTR lpWideCharStr,
int cchWideChar,
LPSTR lpMultiByteStr,
int cbMultiByte,
LPCSTR lpDefaultChar,
LPBOOL lpUsedDefaultChar
);
*/
::WideCharToMultiByte(CP_UTF8, 0,
(LPWSTR)in.c_str(), in.length(),
utf8ASCIIstr, DECQUAD_String,NULL,NULL);
decContext set;
decContextDefault(&set, DEC_INIT_DECQUAD); // initialize4.
decQuadFromString( &v->impl,utf8ASCIIstr,&set);
#else
assert(0);
std::cerr<<"cannot convert to decQuad from widechar "<<endl;
#endif
}
int main(int argc, char *argv[]) {
decQuad a; // working decQuad
decNumber numa, numb; // working decNumbers
decContext set; // working context
char string[DECQUAD_String]; // number->string buffer
if (argc<3) { // not enough words
printf("Please supply two numbers for power(2*a, b).\n");
return 1;
}
decContextDefault(&set, DEC_INIT_DECQUAD); // initialize
decQuadFromString(&a, argv[1], &set); // get a
decQuadAdd(&a, &a, &a, &set); // double a
decQuadToNumber(&a, &numa); // convert to decNumber
decNumberFromString(&numb, argv[2], &set);
decNumberPower(&numa, &numa, &numb, &set); // numa=numa**numb
decQuadFromNumber(&a, &numa, &set); // back via a Quad
decQuadToString(&a, string); // ..
printf("power(2*%s, %s) => %s\n", argv[1], argv[2], string);
return 0;
} // main
