sparsemap/examples/ex_1.c

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#include <assert.h>
#include <stdio.h>
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#include "../include/sparsemap.h"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wvariadic-macros"
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#define __diag(...) \
do { \
fprintf(stderr, "%s:%d:%s(): ", __FILE__, __LINE__, __func__); \
fprintf(stderr, __VA_ARGS__); \
} while (0)
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#pragma GCC diagnostic pop
// NOTE: currently, this code serves as a sample and unittest.
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int
main()
{
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size_t size = 4;
setbuf(stderr, 0); // disable buffering
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__diag("Please wait a moment...");
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sparsemap_t mmap, *map = &mmap;
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uint8_t buffer[1024];
uint8_t buffer2[1024];
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sparsemap_init(map, buffer, sizeof(buffer), 0);
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assert(sparsemap_get_size(map) == size);
sparsemap_set(map, 0, true);
assert(sparsemap_get_size(map) == size + 4 + 8 + 8);
assert(sparsemap_is_set(map, 0) == true);
assert(sparsemap_get_size(map) == size + 4 + 8 + 8);
assert(sparsemap_is_set(map, 1) == false);
sparsemap_set(map, 0, false);
assert(sparsemap_get_size(map) == size);
sparsemap_clear(map);
sparsemap_set(map, 64, true);
assert(sparsemap_is_set(map, 64) == true);
assert(sparsemap_get_size(map) == size + 4 + 8 + 8);
sparsemap_clear(map);
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fprintf(stderr, ".");
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// set [0..100000]
for (int i = 0; i < 100000; i++) {
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assert(sparsemap_is_set(map, i) == false);
sparsemap_set(map, i, true);
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if (i > 5) {
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for (int j = i - 5; j <= i; j++) {
assert(sparsemap_is_set(map, j) == true);
}
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}
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assert(sparsemap_is_set(map, i) == true);
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}
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fprintf(stderr, ".");
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for (int i = 0; i < 100000; i++) {
assert(sparsemap_is_set(map, i) == true);
}
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// unset [0..10000]
for (int i = 0; i < 10000; i++) {
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assert(sparsemap_is_set(map, i) == true);
sparsemap_set(map, i, false);
assert(sparsemap_is_set(map, i) == false);
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}
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for (int i = 0; i < 10000; i++) {
assert(sparsemap_is_set(map, i) == false);
}
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sparsemap_clear(map);
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fprintf(stderr, ".");
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// set [10000..0]
for (int i = 10000; i >= 0; i--) {
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assert(sparsemap_is_set(map, i) == false);
sparsemap_set(map, i, true);
assert(sparsemap_is_set(map, i) == true);
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}
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for (int i = 10000; i >= 0; i--) {
assert(sparsemap_is_set(map, i) == true);
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fprintf(stderr, ".");
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}
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// open and compare
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sparsemap_t _sm3, *sm3 = &_sm3;
sparsemap_open(sm3, buffer, sizeof(buffer));
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for (int i = 0; i < 10000; i++) {
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assert(sparsemap_is_set(sm3, i) == sparsemap_is_set(map, i));
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}
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// unset [10000..0]
for (int i = 10000; i >= 0; i--) {
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assert(sparsemap_is_set(map, i) == true);
sparsemap_set(map, i, false);
assert(sparsemap_is_set(map, i) == false);
}
for (int i = 10000; i >= 0; i--) {
assert(sparsemap_is_set(map, i) == false);
}
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fprintf(stderr, ".");
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sparsemap_clear(map);
sparsemap_set(map, 0, true);
sparsemap_set(map, 2048 * 2 + 1, true);
assert(sparsemap_is_set(map, 0) == true);
assert(sparsemap_is_set(map, 2048 * 2 + 0) == false);
assert(sparsemap_is_set(map, 2048 * 2 + 1) == true);
assert(sparsemap_is_set(map, 2048 * 2 + 2) == false);
sparsemap_set(map, 2048, true);
assert(sparsemap_is_set(map, 0) == true);
assert(sparsemap_is_set(map, 2047) == false);
assert(sparsemap_is_set(map, 2048) == true);
assert(sparsemap_is_set(map, 2049) == false);
assert(sparsemap_is_set(map, 2048 * 2 + 2) == false);
assert(sparsemap_is_set(map, 2048 * 2 + 0) == false);
assert(sparsemap_is_set(map, 2048 * 2 + 1) == true);
assert(sparsemap_is_set(map, 2048 * 2 + 2) == false);
sparsemap_clear(map);
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fprintf(stderr, ".");
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for (int i = 0; i < 100000; i++) {
sparsemap_set(map, i, true);
}
for (int i = 0; i < 100000; i++) {
assert(sparsemap_select(map, i) == (unsigned)i);
}
sparsemap_clear(map);
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fprintf(stderr, ".");
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for (int i = 1; i < 513; i++) {
sparsemap_set(map, i, true);
}
for (int i = 1; i < 513; i++) {
assert(sparsemap_select(map, i - 1) == (unsigned)i);
}
sparsemap_clear(map);
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fprintf(stderr, ".");
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for (size_t i = 0; i < 8; i++) {
sparsemap_set(map, i * 10, true);
}
for (size_t i = 0; i < 8; i++) {
assert(sparsemap_select(map, i) == i * 10);
}
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// split and move, aligned to MiniMap capacity
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sparsemap_t _sm2, *sm2 = &_sm2;
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sparsemap_init(sm2, buffer2, sizeof(buffer2), 0);
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sparsemap_clear(sm2);
for (int i = 0; i < 2048 * 2; i++) {
sparsemap_set(map, i, true);
}
sparsemap_split(map, 2048, sm2);
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for (int i = 0; i < 2048; i++) {
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assert(sparsemap_is_set(map, i) == true);
assert(sparsemap_is_set(sm2, i) == false);
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}
for (int i = 2048; i < 2048 * 2; i++) {
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assert(sparsemap_is_set(map, i) == false);
assert(sparsemap_is_set(sm2, i) == true);
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}
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fprintf(stderr, ".");
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// split and move, aligned to BitVector capacity
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sparsemap_init(sm2, buffer2, sizeof(buffer2), 0);
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sparsemap_clear(map);
for (int i = 0; i < 2048 * 3; i++) {
sparsemap_set(map, i, true);
}
sparsemap_split(map, 64, sm2);
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for (int i = 0; i < 64; i++) {
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assert(sparsemap_is_set(map, i) == true);
assert(sparsemap_is_set(sm2, i) == false);
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}
for (int i = 64; i < 2048 * 3; i++) {
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assert(sparsemap_is_set(map, i) == false);
assert(sparsemap_is_set(sm2, i) == true);
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}
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fprintf(stderr, " ok\n");
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}