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Message started by orbitcoms on Jul 31st, 2017 at 9:42am

Title: Having issues with multi-dimensional array
Post by orbitcoms on Jul 31st, 2017 at 9:42am
This is more a c++ question (or maybe an Arduino print question)?

I have initialized a 2 dimensional array and attempt to access the array produced unexpected results. For the array below, I expect to get the 3 values assigned to row 0 but I get these 3 values instead?  1 , 4  and 7. Is this a problem with the way print is working or some issue with the way I am accessing the array? It looks ok to me but I cannot see what is happening. Its probably something very simple/silly I have overlooked.

Note: If I set up a 1-dimensional array and test it, I get correct elements returned.

byte freq[10][3] =
{
{0x69,0x00,0x11},  //420
{0x69,0xc0,0x11},  //423
{0x6a,0x80,0x11},  //426
{0x6b,0x40,0x11},  //429
{0x6c,0x00,0x12},  //432
{0x6c,0xc0,0x12},  //435
{0x6d,0x80,0x12},  //438
{0x6e,0x40,0x12},  //441
{0x6f,0x00,0x12},  //444
{0x6f,0xc0,0x12}  //447
};

Serial.print(byte(freq[0,0])); Serial.print(byte(freq[0,1])); Serial.print(byte(freq[0,2]));

Thanks


Title: Re: Having issues with multi-dimensional array
Post by Visual Micro on Jul 31st, 2017 at 2:11pm
Maybe useful post here

https://forum.arduino.cc/index.php?topic=220385.0

Title: Re: Having issues with multi-dimensional array
Post by orbitcoms on Jul 31st, 2017 at 10:36pm
I did find that post initially and change the array structure declaration but still had issues. So, I reverted to setting up 3 arrays and getting values from each one.

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