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53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/* This file is part of the software similarity tester SIM.
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Written by Dick Grune, Vrije Universiteit, Amsterdam.
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$Id: tokenarray.c,v 1.2 2001/11/13 12:55:59 dick Exp $
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*/
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#include <malloc.h>
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#include "error.h"
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#include "lex.h"
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#include "tokenarray.h"
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#define TK_INCR 10000 /* increment of token array size */
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TOKEN *TokenArray; /* to be filled by malloc */
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static unsigned int tk_size; /* size of TokenArray[] */
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static unsigned int tk_free; /* next free position in TokenArray[] */
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void
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InitTokenArray(void) {
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tk_size = TK_INCR;
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TokenArray = (TOKEN *)malloc(sizeof (TOKEN) * tk_size);
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if (!TokenArray) fatal("out of memory");
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tk_free = 1; /* don't use position 0 */
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}
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void
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StoreToken(void) {
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if (tk_free == tk_size) {
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/* allocated array is full; try to increase its size */
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unsigned int new_size = tk_size + TK_INCR;
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register TOKEN *new_array = (TOKEN *)realloc(
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(char *)TokenArray,
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sizeof (TOKEN) * new_size
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);
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if (new_size < tk_free)
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fatal("internal error: TK_INCR causes numeric overflow");
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if (!new_array) {
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/* we failed */
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fatal("out of memory");
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}
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TokenArray = new_array, tk_size = new_size;
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}
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/* now we are sure there is room enough */
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TokenArray[tk_free++] = lex_token;
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}
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unsigned int
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TextLength(void) {
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return tk_free;
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}
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