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multi dimensional array initialization

 
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dxrose86



Joined: 28 Feb 2009
Posts: 5
Location: Taunton Ma

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multi dimensional array initialization
PostPosted: Wed Feb 24, 2010 2:48 pm     Reply with quote
Hello, has anyone used constant multidimensional arrays?
compiler v 4.099
Pic 18f26k20
Code:

const int gtable [][]= {
                       {0x05,0x37,0x51,0x65,0x77,0x87,0x95,0xa2,0xae,0xba,0xc5,0xd0,0xda,0xe4,0xed,0xf7,0xff},     
             {0x01,0x37,0x51,0x65,0x77,0x87,0x95,0xa2,0xae,0xba,0xc5,0xd0,0xda,0xe4,0xed,0xf7,0xff},
                  {0x04,0x37,0x51,0x65,0x77,0x87,0x95,0xa2,0xae,0xba,0xc5,0xd0,0xda,0xe4,0xed,0xf7,0xff},
                       {0x02,0x37,0x51,0x65,0x77,0x87,0x95,0xa2,0xae,0xba,0xc5,0xd0,0xda,0xe4,0xed,0xf7,0xff}
             };

error 86 looking for = ?

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Micro-guy
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PostPosted: Wed Feb 24, 2010 2:51 pm     Reply with quote
Give it the number of rows and columns. Then it will compile:
Code:

const int gtable [4][17]= {
 
RoGuE_StreaK



Joined: 02 Feb 2010
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PostPosted: Wed Feb 24, 2010 6:41 pm     Reply with quote
I don't know if it's relevant or even correct, but I was having issues with a similar thing recently, and the method of declaration that worked for me was without the separating brackets and commas; ie:
Code:
const int gtable [4][17]= {
     0x05,0x37,0x51,0x65,0x77,0x87,0x95,0xa2,0xae,0xba,0xc5,0xd0,0xda,0xe4,0xed,0xf7,0xff
     0x01,0x37,0x51,0x65,0x77,0x87,0x95,0xa2,0xae,0xba,0xc5,0xd0,0xda,0xe4,0xed,0xf7,0xff
     0x04,0x37,0x51,0x65,0x77,0x87,0x95,0xa2,0xae,0xba,0xc5,0xd0,0xda,0xe4,0xed,0xf7,0xff
     0x02,0x37,0x51,0x65,0x77,0x87,0x95,0xa2,0xae,0xba,0xc5,0xd0,0xda,0xe4,0xed,0xf7,0xff
     };

Don't know why this was, or whether it just happened to coincide with another issue, but when I did it this way it worked. I've got some sound waveforms stored this way with thousands of samples, and they are now working fine.
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