initialization to `int' from `double'

[Johan Kuipers <j dot kuipers at chello dot nl>]

Hi,

This bug report concerns the non consequent use of warning. You have
decided to
issue a warning if int is initialized from double. When I define a class
constructor with an int as parameter the warning is not shown.

I would expect consequent use of warnings.

- Johan Kuipers

--------------------------------------------------
Source code (also as attachment tst.cc.bz2):

#include <iostream>

// initialization to 'int' from to 'double'

class X
{
public:
	X(int x) 
		: mX(x) 
		{};

	X(const X& rhs) 
		: mX(rhs.mX) 
		{};

	X& operator=(const X& rhs)
		{
			mX = rhs.mX;
			return *this;
		};

	operator int() 
		{
			return mX;
		}

	~X() 
		{};

private:
	int mX;
};


int main()
{
	double d = 3.999;

	X x(d);				// expected a warning

	cout << "x = " << x << endl;

	X y = d;			// expected a warning

	cout << "y = " << y << endl;

	int j(d);			// warning

	cout << "j = " << j << endl;

	int k = d;			// warning

	cout << "k = " << k << endl;

	return 0;
}

// end of source tst.cc

--------------------------------------------------
Compiler output with: g++ -v --save-temps -Wall tst.cc

Reading specs from /usr/lib/gcc-lib/i486-linux/egcs-2.91.66/specs
gcc version egcs-2.91.66 19990314 (egcs-1.1.2 release)
 /usr/lib/gcc-lib/i486-linux/egcs-2.91.66/cpp -lang-c++ -v -undef
-D__GNUC__=2 -D__GNUG__=2 -D__cplusplus -D__GNUC_MINOR__=91 -D__ELF__
-Dunix -Di386 -D__i386__ -Dlinux -D__ELF__ -D__unix__ -D__i386__
-D__i386__ -D__linux__ -D__unix -D__i386 -D__linux -Asystem(posix)
-D__EXCEPTIONS -Wall -Asystem(unix) -Acpu(i386) -Amachine(i386) -Di386
-D__i386 -D__i386__ -Di486 -D__i486 -D__i486__ tst.cc tst.ii
GNU CPP version egcs-2.91.66 19990314 (egcs-1.1.2 release) (i386
Linux/ELF)
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/g++
 /usr/lib/g++-include
 /usr/local/include
 /usr/i486-linux/include
 /usr/lib/gcc-lib/i486-linux/egcs-2.91.66/include
 /usr/include
End of search list.
 /usr/lib/gcc-lib/i486-linux/egcs-2.91.66/cc1plus tst.ii -quiet
-dumpbase tst.cc -Wall -version -o tst.s
GNU C++ version egcs-2.91.66 19990314 (egcs-1.1.2 release) (i486-linux)
compiled by GNU C version egcs-2.91.66 19990314 (egcs-1.1.2 release).
tst.cc: In function `int main()':
tst.cc:47: warning: initialization to `int' from `double'
tst.cc:51: warning: initialization to `int' from `double'
 /usr/i486-linux/bin/as -V -Qy -o tst.o tst.s
GNU assembler version 2.9.1 (i486-linux), using BFD version 2.9.1.0.22
 /usr/lib/gcc-lib/i486-linux/egcs-2.91.66/collect2 -m elf_i386
-dynamic-linker /lib/ld-linux.so.2 /usr/lib/crt1.o /usr/lib/crti.o
/usr/lib/gcc-lib/i486-linux/egcs-2.91.66/crtbegin.o
-L/usr/lib/gcc-lib/i486-linux/egcs-2.91.66 -L/usr/i486-linux/lib tst.o
-lstdc++ -lm -lgcc -warn-common -lc -lgcc
/usr/lib/gcc-lib/i486-linux/egcs-2.91.66/crtend.o /usr/lib/crtn.o

tst.ii.bz2

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