/*
* Function: GetValue
* Usage: Nkmax = (int)GetValue("datafile","Nkmax");
* --------------------------------------------
* Returns the value of the specified variable defined in datafile.
*
*/
double GetValue(char *filename, char *str, int *status)
{
int ispace;
char c, istr[BUFFERLENGTH], ostr[BUFFERLENGTH];
FILE *ifile = MyFOpen(filename,"r","GetValue");
*status = 0;
while(1) {
mygetline(ifile,istr,"");
if(strlen(istr)==0)
break;
getchunk(istr,ostr);
if(!strcmp(ostr,str)) {
for(ispace=strlen(ostr);ispace<strlen(istr);ispace++)
if(!isspace(istr[ispace]))
break;
if(ispace==strlen(istr)-1)
*status=0;
else
*status=1;
getchunk(&(istr[ispace]),ostr);
break;
}
}
fclose(ifile);
if(*status)
return strtod(ostr,(char **)NULL);
else
return 0;
}
boost::optional<boost::shared_ptr<Error> > FileRead(const std::wstring &path, std::vector<char> *data) {
if(path.empty() || data == NULL) {
return CREATE_ERROR(ERROR_CODE_INVALID_PARAMETER);
}
boost::shared_ptr<FILE> fp = MyFOpen(path, L"rb");
if(!fp) {
return CREATE_ERROR(ERROR_CODE_FILE_NOT_FOUND);
}
::fseek(fp.get(), 0, SEEK_END);
const long size = ::ftell(fp.get());
if(size < 0) {
return CREATE_ERROR(ERROR_CODE_INTERNAL_ERROR);
}
::fseek(fp.get(), 0, SEEK_SET);
data->resize(static_cast<unsigned int>(size));
const unsigned int read_size = ::fread(&data->front(), 1, data->size(), fp.get());
if(read_size != data->size()) {
return CREATE_ERROR(ERROR_CODE_INTERNAL_ERROR);
}
return boost::none;
}
