Dan, thanks for helping. I tried it and the compiling failed.
On Tue, Jan 26, 2010 at 3:12 PM, Daniel Roe <droe.nist.gov> wrote:
> I believe that sscanf and fscanf require that you pass the addresses of the
> variables you want to set, i.e.
>
> float f;
> fscanf(FILE,"%f",&f);
>
> works, but
>
> fscanf(FILE,"%f",f);
>
> doesn't. You can try using the address operator on your arguments, like
>
> fscanf(pf,"%f %f %f",&(a[n].x), &(a[n].y), &(a[n].z));
>
> and see if that helps.
>
> -Dan
>
> Lixia Jin Day wrote:
>
>> Below is my testing code. When I compile it give me this warning:
>> nab -v testing.nab
>> cpp cmd: /usr/local/amber11/bin/ucpp -l -I/usr/local/amber11/include
>> testing.nab
>> nab2c cmd: /usr/local/amber11/bin/nab2c -nfname testing.nab
>> cc cmd: gcc -I/usr/local/amber11/include testing.c
>> /usr/local/amber11/lib/libnab.a /usr/local/amber11/lib/libsym.a
>> /usr/local/amber11/lib/carpack.a /usr/local/amber11/lib/clapack.a
>> /usr/local/amber11/lib/cblas.a /usr/local/amber11/lib/f2c.a -lm
>> testing.c: In function ‘main’:
>> testing.c:30: warning: format ‘%f’ expects type ‘float *’, but argument 3
>> has type ‘REAL_T *’
>> testing.c:30: warning: format ‘%f’ expects type ‘float *’, but argument 4
>> has type ‘REAL_T *’
>> testing.c:30: warning: format ‘%f’ expects type ‘float *’, but argument 5
>> has type ‘REAL_T *’
>>
>>
>> When I use sscanf(line, "%f %f %f",a[n].x, a[n].y, a[n].z); instead of
>> fscanf(pf,"%f %f %f",a[n].x, a[n].y, a[n].z); I get the same warning.
>> Ignoring the warning I ran the exe to find that all the output was 0.00000
>>
>> Please advice where in the code is wrong. Thank you!
>>
>> Lixia
>>
>> //////////////////////code
>> //testing
>> string line;
>> point a[4];
>> int n;
>> file pf;
>>
>>
>> pf=fopen("data.txt","r");
>> line=getline(pf);
>> printf("%s\n",line);
>> for(n=0;n<4;n=n+1) {
>> fscanf(pf,"%f %f %f",a[n].x, a[n].y, a[n].z);
>> printf ("%f, %f, %f",a[n].x,a[n].y,a[n].z);
>> printf ("\tdone!\n");
>> }
>> fclose(pf);
>> _______________________________________________
>> AMBER mailing list
>> AMBER.ambermd.org
>> http://lists.ambermd.org/mailman/listinfo/amber
>>
>>
>
> --
> Daniel R. Roe, Ph.D.
> Research Chemist
> National Institute of Standards and Technology
> 100 Bureau Drive, Stop 8443
> Gaithersburg, MD 20899-8443
> (301) 975-8741
>
>
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>
--
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Received on Tue Jan 26 2010 - 16:30:02 PST
