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Oct 24th, 2007

converting string[][] to float[]

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I am trying to convert some data that I read in file as string data to a float array

The data that is read are in two dimensional string array like

C Syntax (Toggle Plain Text)
char tmatrix[10][100];
for(j=0;j<k3;j++){printf("\n %s",tmatrix[j]);}   //k3=max data read
 0.5
 0.2
 0.3
 0.6
char tmatrix[10][100];
for(j=0;j<k3;j++){printf("\n %s",tmatrix[j]);}   //k3=max data read
 0.5
 0.2
 0.3
 0.6

Now I need to convert the content of tmatrix[][] into a float array
so that float_array[1]=0.5

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mank

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Oct 24th, 2007

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Re: converting string[][] to float[]

No problem -- just call atof()

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float n = atof(tmatrix[i]);
float n = atof(tmatrix[i]);

Not a perfrect solution, but works ok for most purposes.

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Oct 24th, 2007

Re: converting string[][] to float[]

Thanks a lot

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Oct 25th, 2007

Re: converting string[][] to float[]

strtod() would be a better function to use, because it has better error diagnostics.

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