little-brother

// gcc main.c sqlite3.c -o main.exe
#include <stdio.h>
#include "sqlite3.h"

static void square (sqlite3_context *ctx, int argc, sqlite3_value **argv) {
	int type = sqlite3_value_type(argv[0]);
	double d = sqlite3_value_double(argv[0]);	
	
	switch (type) {
		case SQLITE_NULL:

little-brother

void odd (sqlite3_context *ctx, int argc, sqlite3_value **argv){		
	int *pCounter = (int*)sqlite3_get_auxdata(ctx, 0);
	if (pCounter == 0) {
		pCounter = sqlite3_malloc(sizeof(*pCounter));
		if (pCounter == 0) 
			return sqlite3_result_error_nomem(ctx);
		
		*pCounter = sqlite3_value_type(argv[0]) == SQLITE_NULL ? 0 : sqlite3_value_int(argv[0]);
		sqlite3_set_auxdata(ctx, 0, pCounter, sqlite3_free);
	} else {

little-brother

static void square (sqlite3_context *ctx, int argc, sqlite3_value **argv) {
	int type = sqlite3_value_type(argv[0]);
	double d = sqlite3_value_double(argv[0]);	
	
	switch (type) {
		case SQLITE_NULL:
			sqlite3_result_null(ctx);
			break;
			
		case SQLITE_INTEGER: