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util.c
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util.c
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/******************************************************************************
* util.c
*
* Parallel construction of succinct trees
* For more information: http://www.inf.udec.cl/~josefuentes/sea2015/
*
******************************************************************************
* Copyright (C) 2015 José Fuentes Sepúlveda <jfuentess@udec.cl>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "util.h"
BIT_ARRAY* parentheses_to_bits(const char* fn, long* n) {
char parenthesis;
long counter = 0L;
FILE* fp = fopen(fn, "r");
if (!fp) {
fprintf(stderr, "Error opening file \"%s\".\n", fn);
exit(-1);
}
fseek(fp, 0L, SEEK_END);
*n = ftell(fp);
BIT_ARRAY* B = bit_array_create(*n);
fseek(fp, 0L, SEEK_SET);
while (fread(&parenthesis,sizeof(char),1,fp)==1) {
if(parenthesis == '(')
bit_array_set_bit(B, counter);
counter++;
}
fclose(fp);
return B;
}