Description Otavio Pontes 2011-12-02 12:29:02 EST

In Project properties->C/C++ Build->Settings, we can change some warning flags from gcc compiler. I propose adding -Wextra and -Wconversion flags to that page.
According to gcc manual this flags do the following:

-Wextra
    This enables some extra warning flags that are not enabled by
    -Wall. (This option used to be called -W.  The older name is still
    supported, but the newer name is more descriptive.)
[...]

-Wconversion
    Warn for implicit conversions that may alter a value. This includes
    conversions between real and integer, like "abs (x)" when "x" is
    "double"; conversions between signed and unsigned, like "unsigned
    ui = -1"; and conversions to smaller types, like "sqrtf (M_PI)". Do
    not warn for explicit casts like "abs ((int) x)" and "ui =
    (unsigned) -1", or if the value is not changed by the conversion
    like in "abs (2.0)".  Warnings about conversions between signed and
    unsigned integers can be disabled by using -Wno-sign-conversion.
[...]