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Maximum Array Size...?
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Maximum Array Size...?
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Rookie
Joined: Sat Mar 01, 2008 3:44 am Posts: 5 
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 Maximum Array Size...?Hi All,
Could anyone please tell about the maximum array size allowed By RobotC? I wanted to define 100*100 2D arrays by pre allocating the memory:
but I got this error: **Severe*:Out of memory for variable allocation. Thanks in advance asma |
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| Tue Apr 01, 2008 9:31 am |
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Guru  Joined: Sat Mar 01, 2008 12:52 pm Posts: 1030
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I just asked asked that before, also for a map
variable memory is limited to 15 k for me, this limit was too low... 
If you would like more, too: please ask the developers  _________________ regards, HaWe aka Ford #define S sqrt(t+2*i*i)<2 #define F(a,b) for(a=0;a<b;++a) float x,y,r,i,s,j,t,n;task main(){F(y,64){F(x,99){r=i=t=0;s=x/33-2;j=y/32-1;F(n,50&S){t=r*r-i*i;i=2*r*i+j;r=t+s;}if(S){PutPixel(x,y);}}}while(1)} |
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| Tue Apr 01, 2008 11:11 am |
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Rookie
Joined: Sat Mar 01, 2008 3:44 am Posts: 5
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So, what could be a best solution to values that should be indexed using x and y?
• Will pointer help out? • Or is writing values to a file directly a good solution considering that we have lines number(y) and columns number (x)? • Could datalog be a good solution? Regards, Asma |
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| Tue Apr 01, 2008 11:42 am |
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Guru Joined: Sat Mar 01, 2008 12:52 pm Posts: 1030
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pointer won't help, cause there is no heap available.
writing a file to NXT file system is very slow and stops program execution during file I/O - and how do you want to read the values it if you don't have that memory? with data logging I don't know how to solve this either. look at these threads, where I asked about this memory problem before: viewtopic.php?t=445 viewtopic.php?t=486 _________________ regards, HaWe aka Ford #define S sqrt(t+2*i*i)<2 #define F(a,b) for(a=0;a<b;++a) float x,y,r,i,s,j,t,n;task main(){F(y,64){F(x,99){r=i=t=0;s=x/33-2;j=y/32-1;F(n,50&S){t=r*r-i*i;i=2*r*i+j;r=t+s;}if(S){PutPixel(x,y);}}}while(1)} |
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| Tue Apr 01, 2008 5:51 pm |
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Rookie
Joined: Sat Mar 01, 2008 3:44 am Posts: 5
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Well, I was thinking to export the datalog file to Excel or to write a small application in C or Java such that I could display the data as a map.
Any good suggestion to overcome memory limitation? Regards, Asma |
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| Thu Apr 03, 2008 2:14 pm |
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