Mail Archives: cygwin/2001/05/19/16:13:11
Sigh.
Known bug in cygwin-1.3.1. Not a problem in gcc. A simple archive
search would have revealed about 27 times this question has been
answered since 1.3.1 came out. Try a snapshot.
--Chuck
Richard Stanton wrote:
> The fscanf function in gcc 2.95.3-4 seems to ignore the decimal point in
> floating point input fields. For example, create a file containing just the
> following two numbers, say test.prn:
>
> 26.28 2.34
>
> Now compile and run the following program (testread.c):
>
> #include <math.h>
> #include <stdlib.h>
> #include <stdio.h>
> #include <string.h>
>
> char fileName[] = "test.prn";
> double input1, input2;
>
> int main(int argc, char *argv[])
> {
>
> FILE *fpin0;
>
> if (((fpin0 = fopen(fileName, "r")) != NULL) &&
> (fscanf(fpin0, "%lf %lf", &input1, &input2) == 2)) {
> printf("Input line = %15.7f %15.7f\n", input1, input2);
> } else printf("Error\n");
> return 0;
> }
>
> and this is what happens:
>
> c:\projects\leases>gcc -v
> Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-4/specs
> gcc version 2.95.3-4 (cygwin special)
>
> c:\projects\leases>gcc -o testread testread.c
>
> c:\projects\leases>testread
> Input line = 2628.0000000 234.0000000
>
> The numbers were read as if they had no decimal points in them. This doesn't
> help with the execution of my code...
>
> Is there something wrong with my gcc setup, did I make an error in my code,
> or is this a bug?
>
> Thanks.
>
> Richard Stanton
>
>
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