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// Copyright (c) 2009-2011, Tor M. Aamodt, Ali Bakhoda, Ivan Sham,
// Wilson W.L. Fung
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// Redistributions in binary form must reproduce the above copyright notice,
// this
// list of conditions and the following disclaimer in the documentation and/or
// other materials provided with the distribution.
// Neither the name of The University of British Columbia nor the names of its
// contributors may be used to endorse or promote products derived from this
// software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "stack.h"
#include <assert.h>
#include <stdlib.h>
void push_stack(Stack *S, address_type val) {
assert(S->top < S->max_size);
S->v[S->top] = val;
(S->top)++;
}
address_type pop_stack(Stack *S) {
(S->top)--;
return (S->v[S->top]);
}
address_type top_stack(Stack *S) {
assert(S->top >= 1);
return (S->v[S->top - 1]);
}
Stack *new_stack(int size) {
Stack *S;
S = (Stack *)malloc(sizeof(Stack));
S->max_size = size;
S->top = 0;
S->v = (address_type *)calloc(size, sizeof(address_type));
return S;
}
void free_stack(Stack *S) {
free(S->v);
free(S);
}
int size_stack(Stack *S) { return S->top; }
int full_stack(Stack *S) { return S->top >= S->max_size; }
int empty_stack(Stack *S) { return S->top == 0; }
int element_exist_stack(Stack *S, address_type value) {
int i;
for (i = 0; i < S->top; ++i) {
if (value == S->v[i]) {
return 1;
}
}
return 0;
}
void reset_stack(Stack *S) { S->top = 0; }
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