[Bug c++/54333] New: sprinf and fprintf work not always equal

[lirex.software at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54333

             Bug #: 54333
           Summary: sprinf and fprintf work not always equal
    Classification: Unclassified
           Product: gcc
           Version: 4.6.1
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: lirex.software@gmail.com


Created attachment 28059
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28059
the c++ source file

in the following part of the code:

profit_tax_stream = fopen ("test_write.txt","w");
    profit_tax_stream2 = fopen ("test2.txt","r");
    //fputc(c, profit_tax_stream[0]);

    fprintf(profit_tax_stream, "testtest\" test 123");

    strcpy(chBuffer,"\0");
    //strcat(chBuffer," adsadasda");

    fscanf(profit_tax_stream2,"%s", chBuffer);
    fprintf(profit_tax_stream,"%s", chBuffer);

    //fscanf(profit_tax_stream2, chBuffer);
    //fprintf(profit_tax_stream, chBuffer);
//fprintf(profit_tax_stream[0], "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>");


        fclose(profit_tax_stream);
    fclose(profit_tax_stream2);

fscanf reads a portion of data delimited by space, but only
when I use

fscanf(profit_tax_stream2,"%s", chBuffer);

but it reads nothing at all(I see nothing added to the file opened for write
and also I tried to output the content of chBuffer via Messagebox) when I use

fscanf(profit_tax_stream2, chBuffer);

line of code instead.

The problem is, that the "opposite" function fprintf works in both cases.
----

My operation system is Windows XP HOME Edition OEM Service Pack 3
----

My compile line:
c++ -I"D:\Program Files\PostgreSQL\9.1\include" -L"D:\Program
Files\PostgreSQL\9.1\lib" -lpq -o %application_file% %application_file%.cpp
-Wl,--subsystem,windows -lgdi32 -lcomctl32 -D_WIN32_IE=0x0300 -save-temps