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translate the example from C++ to C99

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This commit is contained in:
Gregory Burd 2024-04-04 15:58:06 -04:00
parent 8500c7da1d
commit 723ddb29cb
3 changed files with 163 additions and 136 deletions
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254
examples/ex_1.c
View file

@ -1,180 +1,204 @@
#include <sparsemap.h>
#include <assert.h>
#include <stdarg.h>
#include <stdio.h>
using namespace sparsemap;
#include "../include/sparsemap.h"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wvariadic-macros"
#define __diag(format, ...) \
__diag_(__FILE__, __LINE__, __func__, format, ##__VA_ARGS__)
#pragma GCC diagnostic pop
void __attribute__((format(printf, 4, 5))) __diag_(const char *file,
int line, const char *func, const char *format, ...)
{
va_list args;
va_start(args, format);
fprintf(stderr, "%s:%d:%s(): ", file, line, func);
vfprintf(stderr, format, args);
va_end(args);
}
// NOTE: currently, this code serves as a sample and unittest.
//
// this code serves as a sample but also as a unittest.
//
int main() {
int size = 4;
setbuf(stdout, 0); // disable printf() buffering
printf("Please wait a moment.");
__diag("Please wait a moment...");
#if 1
uint8_t buffer[1024];
uint8_t buffer2[1024];
sparsemap_t *map = sparsemap(buffer, sizeof(buffer), 0);
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<uint32_t, uint64_t> sm;
sm.create(buffer, sizeof(buffer));
assert(sm.get_size() == size);
sm.set(0, true);
assert(sm.get_size() == size + 4 + 8 + 8);
assert(sm.is_set(0) == true);
assert(sm.get_size() == size + 4 + 8 + 8);
assert(sm.is_set(1) == false);
sm.set(0, false);
assert(sm.get_size() == 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);
sm.clear();
sm.set(64, true);
assert(sm.is_set(64) == true);
assert(sm.get_size() == size + 4 + 8 + 8);
sm.clear();
printf(".");
sparsemap_clear(map);
__diag(".");
// set [0..100000]
for (int i = 0; i < 100000; i++) {
assert(sm.is_set(i) == false);
sm.set(i, true);
assert(sparsemap_is_set(map, i) == false);
sparsemap_set(map, i, true);
if (i > 5) {
for (int j = i - 5; j <= i; j++)
assert(sm.is_set(j) == true);
for (int j = i - 5; j <= i; j++) {
assert(sparsemap_is_set(map, j) == true);
}
}
assert(sm.is_set(i) == true);
assert(sparsemap_is_set(map, i) == true);
}
printf(".");
__diag(".");
for (int i = 0; i < 100000; i++)
assert(sm.is_set(i) == true);
for (int i = 0; i < 100000; i++) {
assert(sparsemap_is_set(map, i) == true);
}
// unset [0..10000]
for (int i = 0; i < 10000; i++) {
assert(sm.is_set(i) == true);
sm.set(i, false);
assert(sm.is_set(i) == false);
assert(sparsemap_is_set(map, i) == true);
sparsemap_set(map, i, false);
assert(sparsemap_is_set(map, i) == false);
}
for (int i = 0; i < 10000; i++)
assert(sm.is_set(i) == false);
for (int i = 0; i < 10000; i++) {
assert(sparsemap_is_set(map, i) == false);
}
sm.clear();
printf(".");
sparsemap_clear(map);
__diag(".");
// set [10000..0]
for (int i = 10000; i >= 0; i--) {
assert(sm.is_set(i) == false);
sm.set(i, true);
assert(sm.is_set(i) == true);
assert(sparsemap_is_set(map, i) == false);
sparsemap_set(map, i, true);
assert(sparsemap_is_set(map, i) == true);
}
for (int i = 10000; i >= 0; i--)
assert(sm.is_set(i) == true);
printf(".");
for (int i = 10000; i >= 0; i--) {
assert(sparsemap_is_set(map, i) == true);
__diag(".");
}
// open and compare
SparseMap<uint32_t, uint64_t> sm2;
sm2.open(buffer, sizeof(buffer));
for (int i = 0; i < 10000; i++)
assert(sm2.is_set(i) == sm.is_set(i));
sparsemap_t *sm2 = sparsemap_open(buffer, sizeof(buffer));
for (int i = 0; i < 10000; i++) {
assert(sparsemap_is_set(sm2, i) == sparsemap_is_set(map, i));
}
// unset [10000..0]
for (int i = 10000; i >= 0; i--) {
assert(sm.is_set(i) == true);
sm.set(i, false);
assert(sm.is_set(i) == false);
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(sm.is_set(i) == false);
for (int i = 10000; i >= 0; i--) {
assert(sparsemap_is_set(map, i) == false);
}
printf(".");
sm.clear();
__diag(".");
sparsemap_clear(map);
sm.set(0, true);
sm.set(2048 * 2 + 1, true);
assert(sm.is_set(0) == true);
assert(sm.is_set(2048 * 2 + 0) == false);
assert(sm.is_set(2048 * 2 + 1) == true);
assert(sm.is_set(2048 * 2 + 2) == false);
sm.set(2048, true);
assert(sm.is_set(0) == true);
assert(sm.is_set(2047) == false);
assert(sm.is_set(2048) == true);
assert(sm.is_set(2049) == false);
assert(sm.is_set(2048 * 2 + 2) == false);
assert(sm.is_set(2048 * 2 + 0) == false);
assert(sm.is_set(2048 * 2 + 1) == true);
assert(sm.is_set(2048 * 2 + 2) == false);
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);
sm.clear();
printf(".");
sparsemap_clear(map);
__diag(".");
for (int i = 0; i < 100000; i++)
sm.set(i, true);
for (int i = 0; i < 100000; i++)
assert(sm.select(i) == (unsigned)i);
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);
}
sm.clear();
printf(".");
sparsemap_clear(map);
__diag(".");
for (int i = 1; i < 513; i++)
sm.set(i, true);
for (int i = 1; i < 513; i++)
assert(sm.select(i - 1) == (unsigned)i);
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);
}
sm.clear();
printf(".");
sparsemap_clear(map);
__diag(".");
for (int i = 0; i < 8; i++)
sm.set(i * 10, true);
for (int i = 0; i < 8; i++)
assert(sm.select(i) == (unsigned)i * 10);
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);
}
// split and move, aligned to MiniMap capacity
sm2.create(buffer2, sizeof(buffer2));
sm.clear();
for (int i = 0; i < 2048 * 2; i++)
sm.set(i, true);
sm.split(2048, &sm2);
sm2 = sparsemap(buffer2, sizeof(buffer2), 0);
sparsemap_clear(sm2);
for (int i = 0; i < 2048 * 2; i++) {
sparsemap_set(map, i, true);
}
sparsemap_split(map, 2048, sm2);
for (int i = 0; i < 2048; i++) {
assert(sm.is_set(i) == true);
assert(sm2.is_set(i) == false);
assert(sparsemap_is_set(map, i) == true);
assert(sparsemap_is_set(sm2, i) == false);
}
for (int i = 2048; i < 2048 * 2; i++) {
assert(sm.is_set(i) == false);
assert(sm2.is_set(i) == true);
assert(sparsemap_is_set(map, i) == false);
assert(sparsemap_is_set(sm2, i) == true);
}
printf(".");
__diag(".");
// split and move, aligned to BitVector capacity
sm2.create(buffer2, sizeof(buffer2));
sm.clear();
for (int i = 0; i < 2048 * 3; i++)
sm.set(i, true);
sm.split(64, &sm2);
sm2 = sparsemap(buffer2, sizeof(buffer2), 0);
sparsemap_clear(map);
for (int i = 0; i < 2048 * 3; i++) {
sparsemap_set(map, i, true);
}
sparsemap_split(map, 64, sm2);
for (int i = 0; i < 64; i++) {
assert(sm.is_set(i) == true);
assert(sm2.is_set(i) == false);
assert(sparsemap_is_set(map, i) == true);
assert(sparsemap_is_set(sm2, i) == false);
}
for (int i = 64; i < 2048 * 3; i++) {
assert(sm.is_set(i) == false);
assert(sm2.is_set(i) == true);
assert(sparsemap_is_set(map, i) == false);
assert(sparsemap_is_set(sm2, i) == true);
}
printf("ok\n");
__diag("ok\n");
#else
//
// This code was used to create the lookup table for
// sparsemap::MiniMap<>::calc_vector_size()
//
printf(" ");
__diag(" ");
for (unsigned int ch = 0; ch <= 0xff; ch++) {
if (ch > 0 && ch % 16 == 0)
printf("\n ");
__diag("\n ");
/*
// check if value is invalid (contains 2#01)
@ -182,8 +206,8 @@ int main() {
|| (ch & (0x3 << 2)) >> 2 == 1
|| (ch & (0x3 << 4)) >> 4 == 1
|| (ch & (0x3 << 6)) >> 6 == 1) {
//printf("%d: -1\n", (int)ch);
printf(" -1,");
//__diag("%d: -1\n", (int)ch);
__diag(" -1,");
continue;
}
*/
@ -198,8 +222,8 @@ int main() {
size++;
if ((ch & (0x3 << 6)) >> 6 == 2)
size++;
//printf("%u: %d\n", (unsigned int)ch, size);
printf(" %d,", size);
//__diag("%u: %d\n", (unsigned int)ch, size);
__diag(" %d,", size);
}
#endif
}

3
include/sparsemap.h
View file

@ -80,6 +80,9 @@ sparsemap_t *sparsemap(uint8_t *data, size_t size, size_t used);
/* Initialize sparsemap_t with data. */
void sparsemap_init(sparsemap_t *map, uint8_t *data, size_t size, size_t used);
/* Clears the whole buffer. */
void sparsemap_clear(sparsemap_t *map);
/* Opens an existing sparsemap at the specified buffer. */
sparsemap_t *sparsemap_open(uint8_t *data, size_t data_size);

42
src/sparsemap.c
View file

@ -31,10 +31,10 @@
#ifdef SPARSEMAP_DIAGNOSTIC
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wvariadic-macros"
#define __skip_diag(format, ...) \
__skip_diag_(__FILE__, __LINE__, __func__, format, ##__VA_ARGS__)
#define __sm_diag(format, ...) \
__sm_diag_(__FILE__, __LINE__, __func__, format, ##__VA_ARGS__)
#pragma GCC diagnostic pop
void __attribute__((format(printf, 4, 5))) __skip_diag_(const char *file,
void __attribute__((format(printf, 4, 5))) __sm_diag_(const char *file,
int line, const char *func, const char *format, ...)
{
va_list args;
@ -44,7 +44,7 @@ void __attribute__((format(printf, 4, 5))) __skip_diag_(const char *file,
va_end(args);
}
#else
#define __skip_diag(file, line, func, format, ...) ((void)0)
#define __sm_diag(file, line, func, format, ...) ((void)0)
#endif
#ifndef SPARSEMAP_ASSERT
@ -633,6 +633,16 @@ __sm_get_size_impl(sparsemap_t *map)
return (SM_SIZEOF_OVERHEAD + p - start);
}
/**
* Returns the aligned offset (aligned to sm_bitvec_t capacity).
*/
static sm_idx_t
__sm_get_aligned_offset(size_t idx)
{
const size_t capacity = SM_BITS_PER_VECTOR;
return ((idx / capacity) * capacity);
}
/**
* Returns the byte offset of a __sm_chunk_t in m_data
*/
@ -664,16 +674,6 @@ __sm_get_chunk_map_offset(sparsemap_t *map, size_t idx)
return ((ssize_t)(p - start));
}
/**
* Returns the aligned offset (aligned to sm_bitvec_t capacity).
*/
static sm_idx_t
__sm_get_aligned_offset(size_t idx)
{
const size_t capacity = SM_BITS_PER_VECTOR;
return ((idx / capacity) * capacity);
}
/**
* Returns the aligned offset (aligned to __sm_chunk_t capacity).
*/
@ -734,10 +734,10 @@ __sm_remove_data(sparsemap_t *map, size_t offset, size_t gap_size)
}
/**
* Clears the whole buffer
*/
* Clears the whole buffer
*/
void
__sm_clear(sparsemap_t *map)
sparsemap_clear(sparsemap_t *map)
{
map->m_data_used = SM_SIZEOF_OVERHEAD;
__sm_set_chunk_map_count(map, 0);
@ -765,7 +765,7 @@ sparsemap_init(sparsemap_t *map, uint8_t *data, size_t size, size_t used)
map->m_data = data;
map->m_data_used = used;
map->m_data_size = size == 0 ? UINT64_MAX : size;
__sm_clear(map);
sparsemap_clear(map);
}
/**
@ -807,7 +807,7 @@ sparsemap_get_range_size(sparsemap_t *map)
bool
sparsemap_is_set(sparsemap_t *map, size_t idx)
{
__sm_assert(get_size() >= SM_SIZEOF_OVERHEAD);
__sm_assert(sparsemap_get_size(map) >= SM_SIZEOF_OVERHEAD);
/* Get the __sm_chunk_t which manages this index */
ssize_t offset = __sm_get_chunk_map_offset(map, idx);
@ -839,7 +839,7 @@ sparsemap_is_set(sparsemap_t *map, size_t idx)
void
sparsemap_set(sparsemap_t *map, size_t idx, bool value)
{
__sm_assert(get_size() >= SM_SIZEOF_OVERHEAD);
__sm_assert(sparsemap_get_size(map) >= SM_SIZEOF_OVERHEAD);
/* Get the __sm_chunk_t which manages this index */
ssize_t offset = __sm_get_chunk_map_offset(map, idx);
@ -968,7 +968,7 @@ sparsemap_set(sparsemap_t *map, size_t idx, bool value)
#endif
break;
}
__sm_assert(get_size() >= SM_SIZEOF_OVERHEAD);
__sm_assert(sparsemap_get_size(map) >= SM_SIZEOF_OVERHEAD);
}
/**