common.cc

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// Voro++, a 3D cell-based Voronoi library
//
// Author   : Chris H. Rycroft (LBL / UC Berkeley)
// Email    : chr@alum.mit.edu
// Date     : August 30th 2011

/** \file common.cc
 * \brief Implementations of the small helper functions. */

#include "common.hh"

namespace voro {

/** \brief Prints a vector of integers.
 *
 * Prints a vector of integers.
 * \param[in] v the vector to print.
 * \param[in] fp the file stream to print to. */
void voro_print_vector(std::vector<int> &v,FILE *fp) {
        int k=0,s=v.size();
        while(k+4<s) {
                fprintf(fp,"%d %d %d %d ",v[k],v[k+1],v[k+2],v[k+3]);
                k+=4;
        }
        if(k+3<=s) {
                if(k+4==s) fprintf(fp,"%d %d %d %d",v[k],v[k+1],v[k+2],v[k+3]);
                else fprintf(fp,"%d %d %d",v[k],v[k+1],v[k+2]);
        } else {
                if(k+2==s) fprintf(fp,"%d %d",v[k],v[k+1]);
                else fprintf(fp,"%d",v[k]);
        }
}

/** \brief Prints a vector of doubles.
 *
 * Prints a vector of doubles.
 * \param[in] v the vector to print.
 * \param[in] fp the file stream to print to. */
void voro_print_vector(std::vector<double> &v,FILE *fp) {
        int k=0,s=v.size();
        while(k+4<s) {
                fprintf(fp,"%g %g %g %g ",v[k],v[k+1],v[k+2],v[k+3]);
                k+=4;
        }
        if(k+3<=s) {
                if(k+4==s) fprintf(fp,"%g %g %g %g",v[k],v[k+1],v[k+2],v[k+3]);
                else fprintf(fp,"%g %g %g",v[k],v[k+1],v[k+2]);
        } else {
                if(k+2==s) fprintf(fp,"%g %g",v[k],v[k+1]);
                else fprintf(fp,"%g",v[k]);
        }
}

/** \brief Prints a vector a face vertex information.
 *
 * Prints a vector of face vertex information. A value is read, which
 * corresponds to the number of vertices in the next face. The routine reads
 * this number of values and prints them as a bracked list. This is repeated
 * until the end of the vector is reached.
 * \param[in] v the vector to interpret and print.
 * \param[in] fp the file stream to print to. */
void voro_print_face_vertices(std::vector<int> &v,FILE *fp) {
        int j,k=0,l;
        if(v.size()>0) {
                l=v[k++];
                if(l<=1) {
                        if(l==1) fprintf(fp,"(%d)",v[k++]);
                        else fputs("()",fp);
                } else {
                        j=k+l;
                        fprintf(fp,"(%d",v[k++]);
                        while(k<j) fprintf(fp,",%d",v[k++]);
                        fputs(")",fp);
                }
                while((unsigned int) k<v.size()) {
                        l=v[k++];
                        if(l<=1) {
                                if(l==1) fprintf(fp," (%d)",v[k++]);
                                else fputs(" ()",fp);
                        } else {
                                j=k+l;
                                fprintf(fp," (%d",v[k++]);
                                while(k<j) fprintf(fp,",%d",v[k++]);
                                fputs(")",fp);
                        }
                }
        }
}

}