This section describes a method to write some data on external files. This is not an aspect related directly to MIRACLE framework, but for a neophite it could be an useful tip.
This is an alternative use of
printf method. In this how-to we used this method to print datas or messages to standard output, but in this case we redirect output to a file.
The code is self-explaining, so we don't write anything but the comments.
// This is the file FILE *fd; //this is the filename char filen; //create a file named Nodo_<nodeId_>.out sprintf(filen,"Nodo_%d.out", nodeId_); //open a file with name filen. New data is //written at the end of existing file or a new one is created fd = fopen(filen,"a"); // "a" = append at the end of file //writes on file fd fprintf(fd,"%f %f\n", now, statistica1_); //closes files fclose(fd);
For more documentation, refer to online tutorials on such as those on www.cplusplus.com.