Create generate_cube.c

Author: XuhuaHuang

LookupTable/generate_cube.c

@@ -0,0 +1,48 @@
+/**
+ * @file generate_cube.c
+ * @author Xuhua Huang
+ * @brief
+ * @version 0.1
+ * @date 2025-06-08
+ *
+ * @copyright Copyright (c) 2025
+ *
+ */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef uint32_t (*lut_func_t)(uint32_t);
+
+// Function to generate a LUT dynamically
+uint32_t* generate_lut(size_t size, lut_func_t func) {
+ uint32_t* table = malloc(size * sizeof(uint32_t));
+ if (table == NULL) {
+ return NULL;
+ }
+
+ for (size_t i = 0; i < size; ++i) {
+ table[i] = func(i);
+ }
+ return table;
+}
+
+// Example transformation function
+uint32_t cube(uint32_t x) {
+ return x * x * x;
+}
+
+int main(void) {
+ size_t size = 10;
+ uint32_t* cube_table = generate_lut(size, cube);
+
+ if (cube_table) {
+ for (size_t i = 0; i < size; ++i) {
+ printf("Cube of %zu is %u\n", i, cube_table[i]);
+ }
+ free(cube_table);
+ }
+
+ return 0;
+}