Bugs in operations of "long" type from GCC-3.4.6 32 bit.

[Andreas Schwab]

"J.C. Pizarro" <jcpiza@gmail.com> writes:

> Brief summary, there are 3 bugs:

None of them are bugs in the compiler, only in your program.

> 1. Error and Warning in assignment of a long constant (with L letter)
> (it's not true that a = 1410065408, high(a) = 0x00000000).

The constant overflows the range of long, causing undefined behaviour.

> 2. Warning in shifts << & >> of a long variable (i don't know if there
> is an error).

A shift count greater than or equal to the width of a type causes
undefined behaviour.

> 3. Error in multiply of long variables. (it's not true that c = -1486618624).

%ld is not the correct format for a value of type long long, causing
undefined behaviour.

Andreas.

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Andreas Schwab, SuSE Labs, schwab@suse.de
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