Jonas-Meyer97
commented
6 years ago I have an Arduino Due(SAM3X8E) and i have some wired behavior im not sure if its related to the potential issue you described. My Arduino Uno(ATmega328P) seems to work just fine. On the Due i can only read the first entry i inserted. All the others readings return err_item_not_found.
#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
#define __ORDER_LITTLE_ENDIAN__ 1234
#include <IonDB.h>
void setup()
{
Serial.begin(9600);
Serial.println("Hello World!");
Dictionary < int, int > *dict = new SkipList < int, int > (-1, key_type_numeric_signed, sizeof(int), sizeof(int), 7);
dict->insert(3, 10);
dict->insert(4, 16);
dict->insert(5, 20);
int value = dict->get(3);
if(dict->last_status.error != err_ok)
{
Serial.println("3Something went wrong!");
if(dict->last_status.error == err_item_not_found)
{
Serial.println("\tItem was not found");
}
}
Serial.print("3 -> ");
Serial.println(value);
int newValue = dict->get(4);
if(dict->last_status.error != err_ok)
{
Serial.println("4Somethign went wrong!");
if(dict->last_status.error == err_item_not_found)
{
Serial.println("\tItem was not found");
}
}
Serial.print("4 -> ");
Serial.println(newValue);
}
void loop()
{
}Arduino Due:
Hello World!
3 -> 10
4Somethign went wrong!
Item was not found
4 -> 0Arduino Uno:
Hello World!
3 -> 10
4 -> 16Im not sure whats the acutall problem is. Your second links seems to show some problem with endian.
Also i saw here that the Due has some problem on this topic. I tried to add some lines before the include of iondb like this #define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__ but it did not change anything. Any idea what causes this behavior?
CowBoy4mH3LL
margaretselzer
ArduinoMKR
https://github.com/iondbproject/iondb/blob/development/src/dictionary/dictionary.c#L198-L207 https://github.com/iondbproject/iondb/blob/development/src/dictionary/dictionary.c#L248-L256