[Quantlib-dev] [ quantlib-Bugs-3588373 ] (with fix) warning C4244: std::ostream::setw() with STLPort

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Bugs item #3588373, was opened at 2012-11-18 13:55
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Marcello Pietrobon (marcello-ptr)
Assigned to: Nobody/Anonymous (nobody)
Summary: (with fix) warning C4244: std::ostream::setw() with STLPort

Initial Comment:
vs2010 with STLPort.5.2.1 and Boost.1_52
XP SP3

error:
ql/math/array.hpp(634): warning C4244: 'argument' : conversion from 'stlpd_std::streamsize' to 'int', possible loss of data
ql/math/array.hpp(635): warning C4244: 'argument' : conversion from 'stlpd_std::streamsize' to 'int', possible loss of data 
ql/math/matrix.hpp(584): warning C4244: 'argument' : conversion from 'stlpd_std::streamsize' to 'int', possible loss of data

The fix consists in providing a cast to int because required by STLPort  std::ostream::setw() when compiling with vs2010 (and quite probably all others of versions of Microsoft compilers)

So the fixes are:

ql\math\array.hpp : lines 634, 635
#ifdef _STLPORT_VERSION
            for (Size n=0; n<a.size()-1; ++n)
                out << std::setw((int)width) << a[n] << "; ";
            out << std::setw((int)width) << a.back();
#else
            for (Size n=0; n<a.size()-1; ++n)
                out << std::setw(width) << a[n] << "; ";
            out << std::setw(width) << a.back();
#endif



ql\math\matrix.hpp : lines 584
#ifdef _STLPORT_VERSION
            for (Size j=0; j<m.columns(); j++)
                out << std::setw((int)width) << m[i][j] << " ";
#else
            for (Size j=0; j<m.columns(); j++)
                out << std::setw(width) << m[i][j] << " ";
#endif



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