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<TITLE> [pycrypto] _fastmath.c on 64-bit, compile-time warnings
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<H1>[pycrypto] _fastmath.c on 64-bit, compile-time warnings</H1>
<B>Thorsten Behrens</B>
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TITLE="[pycrypto] _fastmath.c on 64-bit, compile-time warnings">sbehrens at gmx.li
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<I>Fri Dec 24 18:48:24 CST 2010</I>
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<PRE>_fastmath.c gives out some warnings along the lines of "you may lose
data because you are forcing a 64-bit value into a 32-bit value" when
compiling pycrypto as a native 64-bit module.
I don't want to get too side-tracked right now - but could someone take
a look and see whether these warnings are harmless? And even if they are
harmless, whether the code could be changed to avoid the warnings
without breaking the code?
src/_fastmath.c(62) : warning C4244: '=' : conversion from 'Py_ssize_t'
to 'int', possible loss of data
src/_fastmath.c(64) : warning C4244: '=' : conversion from 'Py_ssize_t'
to 'int', possible loss of data
src/_fastmath.c(88) : warning C4267: 'initializing' : conversion from
'size_t' to 'int', possible loss of data
src/_fastmath.c(1096) : warning C4267: 'function' : conversion from
'size_t' to 'unsigned long', possible loss of data
src/_fastmath.c(1177) : warning C4244: '=' : conversion from
'mp_bitcnt_t' to 'unsigned long', possible loss of data
src/_fastmath.c(1180) : warning C4018: '<' : signed/unsigned mismatch
src/_fastmath.c(1182) : warning C4018: '<' : signed/unsigned mismatch
Thorsten
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