tools/data_tools/datastructures.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3
   4 #include "datastructures.h"
   5
   6 struct gene* gene_alloc(void) {
   7    struct gene* newGene = (struct gene*) malloc(sizeof(struct gene));
   8    newGene->exon_starts = malloc(2*sizeof(int));
   9    newGene->exon_stops = malloc(2*sizeof(int));
  10    newGene->num_exons = 0;
  11    newGene->max_exons = 2;
  12    newGene->start = -1;
  13
  14    return newGene;
  15 }
  16
  17 void free_gene(struct gene* oldGene) {
  18    free(oldGene->exon_starts);
  19    free(oldGene->exon_stops);
  20 }
  21
  22 void add_exon(struct gene* currentGene,int start, int stop) {
  23
  24    if (currentGene->num_exons < currentGene->num_exons) {
  25       int idx = currentGene->num_exons;
  26       currentGene->exon_starts[idx] = start;
  27       currentGene->exon_stops[idx] = stop;
  28       currentGene->num_exons++;
  29    } else {
  30       currentGene->exon_starts = realloc(currentGene->exon_starts,sizeof(int)*2*currentGene->max_exons);
  31       currentGene->exon_stops = realloc(currentGene->exon_stops,sizeof(int)*2*currentGene->max_exons);
  32    }
  33 }