source: src/examples/vector_int.c@ 2bae7307

// "cfa vector_int.c"

#include "vector_int.h"
extern "C" {
#include <stdlib.h>
#include <assert.h>
}

#define DEFAULT_CAPACITY 20

vector_int vector_int_allocate() {
    return vector_int_allocate( DEFAULT_CAPACITY );
}

vector_int vector_int_allocate( int reserve ) {
    vector_int new_vector;
    new_vector.last = -1;
    new_vector.capacity = reserve;
    new_vector.data = malloc( sizeof( int ) * reserve );
    return new_vector;
}

void vector_int_deallocate( vector_int vec ) {
    free( vec.data );
}

void reserve( vector_int *vec, int reserve ) {
    if ( reserve > vec->capacity ) {
        vec->data = realloc( vec->data, sizeof( int ) * reserve );
        vec->capacity = reserve;
    }
}

void append( vector_int *vec, int element ) {
    vec->last++;
    if ( vec->last == vec->capacity ) {
        vec->capacity *= 2;
        vec->data = realloc( vec->data, sizeof( int ) * vec->capacity );
    }
    vec->data[ vec->last ] = element;
}

// implement bounded_array

lvalue int ?[?]( vector_int vec, int index ) {
    return vec.data[ index ];
}

int last( vector_int vec ) {
    return vec.last;
}