Bug#281847: g++-3.4: g++ does not check arguments to fprintf

[Erik de Castro Lopo <erikd@mega-nerd.com>]

Package: g++-3.4
Version: 3.4.2-2
Severity: normal


Code snippet:

        #include <cstdio>
        int main (void)
        {    double values [2] = { 0.1, 0.2 } ;

            // This line does not raise an error.
            fprintf (stdout, "values [0] = %f\n", values) ;

            // While this one does.
            printf ("values [0] = %f\n", values) ;
    
            return 0;
        }

Compiled with:

		g++ -W -Wall test.cc -o test

Warning messages:
	
		test.cc: In function `int main()':
		test.cc:11: warning: double format, pointer arg (arg 2)

Warns about passing bad argument to printf, but not for fprintf.



-- System Information:
Debian Release: 3.1
  APT prefers testing
  APT policy: (700, 'testing'), (650, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.8
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (ignored: LC_ALL set to POSIX)

Versions of packages g++-3.4 depends on:
ii  gcc-3.4                     3.4.2-2      The GNU C compiler
ii  gcc-3.4-base                3.4.2-2      The GNU Compiler Collection (base 
ii  libc6                       2.3.2.ds1-18 GNU C Library: Shared libraries an
ii  libstdc++6-dev              3.4.2-2      The GNU Standard C++ Library v3 (d

-- no debconf information