fscanf( stream2, "%24c", max_elev); The above instruction reads 24 chars into max_elev. How can i specify a variable number of chars to be read ? Something like int numberofchars=24; fscanf(........ ?????
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Try the following:

int size = 24;
char sz[256];
sprintf(sz, "%%dc", size);
fscanf(stream2, sz, max_elev);

That might work, tho I can''t besure.

why not just do like
char line[24];

fgets(line, 24, stream2);