Hi all,
This is a new thread spawning from the "3.6% of heads up: Please correct your
#includes or optflags use" thread.
I would like to propose to add "-Werror-implicit-function-declaration" to the
default optflags. Why? Because missing prototypes can cause all sorts of problems:
Anything (any function) that returns a pointer, will be a problem when compiled
on 64 bit without a prototype, as the compiler will assume the return type is
an int, and then cast that to a pointer as needed.
Anything returning a float / double will be a problem regardless of 32/64 bits
as only 32 bits of the returned floating point number will be taken and
interpreted as an int (and then cast back to a float / double if used as such).
Any function called with arguments of different type then expected (for example
a float, where the function expects an int or visa versa) will have the same
problem.
Which is why I say: fix them all.
Regards,
Hans
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