topic Can I use ippcore.lib (32-bit version) in a x64 project in Intel® Integrated Performance Primitives https://community.intel.com/t5/Intel-Integrated-Performance/can-I-use-ippcore-lib-32-bit-version-in-a-x64-project/m-p/831458#M5580 <P>Let me answer your question in the'<STRONG>Post Title</STRONG>':<BR /><BR /> <STRONG>&gt;&gt;</STRONG> Can I use <STRONG>ippcore.lib</STRONG> (<STRONG>32</STRONG>-bit version) in a <STRONG>x64</STRONG> project?<BR /><BR /><STRONG>No</STRONG>. If you want to build a <STRONG>64</STRONG>-bit applicationan'<STRONG>ippcore64.lib</STRONG>' has to be used in a <STRONG>x64</STRONG> project.<BR /><BR />Best regards,<BR />Sergey<BR /><BR /><STRONG>PS:</STRONG><SPAN style="text-decoration: underline;">Here is some historical background ( if interested ):</SPAN><BR /><BR />This is because you can't "mix" <STRONG>32</STRONG>-bit and <STRONG>64</STRONG>-bit modules ( executablesand dlls )togetherin one<BR />application. Since '<STRONG>ippcore.lib</STRONG>' is the import library for<STRONG>32</STRONG>-bit applications a <STRONG>32</STRONG>-bit'<STRONG>ippcore.dll</STRONG>' will<BR />be loaded.<BR /><BR />This is a <SPAN style="text-decoration: underline;">very old story</SPAN> going back to <STRONG>1992-1993</STRONG>when <STRONG>Microsoft</STRONG> released <STRONG>Win32s</STRONG> extention for a <STRONG>16</STRONG>-bit<BR /><STRONG>Windows 3.1</STRONG> operating system. It was an awesome upgrade since it allowed to changememory<BR />architecture:<BR /><BR /> from <STRONG>16</STRONG>-bit ( 16:16 )to<STRONG>32</STRONG>-bit ( 0:32 )<BR /> segment-basedflat<BR /><BR />and as soon as <STRONG>Win32s</STRONG> extention was installed <STRONG>Windows 3.1</STRONG>could not be called any longeras a<STRONG>16</STRONG>-bit<BR />operating system!<BR /><BR />On <STRONG>Windows 3.1</STRONG> the <STRONG>Win32s</STRONG> extensionallowed to execute <STRONG>32</STRONG>-bit and <STRONG>16</STRONG>-bit applications. But, it created<BR />lots of "spin-off" problems. Software developers wanted touse <STRONG>16</STRONG>-bit and <STRONG>32</STRONG>-bit modules together,in one<BR />address space, like:<BR /><BR /> <SPAN style="text-decoration: underline;">Use Cases 1 &amp; 2:</SPAN><BR /> <STRONG>16</STRONG>-bit applicationattempts to load\use a <STRONG>32</STRONG>-bit dll<BR /> or<BR /> <STRONG>32</STRONG>-bit application attempts to load\use a <STRONG>16</STRONG>-bit dll<BR /><BR />In order to satisfy a growing demand <STRONG>Microsoft</STRONG> invented <SPAN style="text-decoration: underline;">three</SPAN> different "<STRONG>thunk</STRONG>" techniques and they<BR />allowed to do some "<STRONG>magic</STRONG>". It was possible to "mix" <STRONG>16</STRONG>-bit and <STRONG>32</STRONG>-bit modules butall three "<STRONG>thunk</STRONG>"<BR />techniques were incompatible because theywere designedfor different operating systems, <STRONG>Windows 3.1</STRONG>,<BR /><STRONG>Windows 95</STRONG> and <STRONG>Windows NT3.x</STRONG>.<BR /><BR />Here are two more <SPAN style="text-decoration: underline;">Use Cases</SPAN>for <STRONG>32</STRONG>-bit and <STRONG>64</STRONG>-bit modules on a <STRONG>64</STRONG>-bit operating system.<BR /><BR /> <SPAN style="text-decoration: underline;">Use Cases3 &amp; 4:</SPAN><BR /> <STRONG>32</STRONG>-bit applicationattempts to load\use a <STRONG>64</STRONG>-bit dll<BR /> or<BR /> <STRONG>64</STRONG>-bit application attempts to load\use a <STRONG>32</STRONG>-bit dll<BR /><BR /><STRONG>To summarize everything:</STRONG><BR /><BR /><SPAN style="text-decoration: underline;">Use Cases 1 &amp; 2</SPAN> and <SPAN style="text-decoration: underline;">Use Cases 3 &amp; 4</SPAN> are<STRONG><SPAN style="text-decoration: underline;">not</SPAN></STRONG>going to work without special "<STRONG>magic</STRONG>" techniques.</P> Fri, 13 Jan 2012 01:58:24 GMT SergeyKostrov 2012-01-13T01:58:24Z can I use ippcore.lib (32-bit version) in a x64 project https://community.intel.com/t5/Intel-Integrated-Performance/can-I-use-ippcore-lib-32-bit-version-in-a-x64-project/m-p/831457#M5579 Hi.<BR />I am using the 32-bit versions of ippcore.lib in my x64 application project (VS Studio 2008), but I have this link error:<BR /><BR />error LNK2019: unresolved external symbol ippStaticInitBest referenced in function .......<BR /><BR />Please help me, please !<BR /><BR />JM. Thu, 12 Jan 2012 17:42:17 GMT https://community.intel.com/t5/Intel-Integrated-Performance/can-I-use-ippcore-lib-32-bit-version-in-a-x64-project/m-p/831457#M5579 jeanmarie_stcyr 2012-01-12T17:42:17Z Can I use ippcore.lib (32-bit version) in a x64 project https://community.intel.com/t5/Intel-Integrated-Performance/can-I-use-ippcore-lib-32-bit-version-in-a-x64-project/m-p/831458#M5580 <P>Let me answer your question in the'<STRONG>Post Title</STRONG>':<BR /><BR /> <STRONG>&gt;&gt;</STRONG> Can I use <STRONG>ippcore.lib</STRONG> (<STRONG>32</STRONG>-bit version) in a <STRONG>x64</STRONG> project?<BR /><BR /><STRONG>No</STRONG>. If you want to build a <STRONG>64</STRONG>-bit applicationan'<STRONG>ippcore64.lib</STRONG>' has to be used in a <STRONG>x64</STRONG> project.<BR /><BR />Best regards,<BR />Sergey<BR /><BR /><STRONG>PS:</STRONG><SPAN style="text-decoration: underline;">Here is some historical background ( if interested ):</SPAN><BR /><BR />This is because you can't "mix" <STRONG>32</STRONG>-bit and <STRONG>64</STRONG>-bit modules ( executablesand dlls )togetherin one<BR />application. Since '<STRONG>ippcore.lib</STRONG>' is the import library for<STRONG>32</STRONG>-bit applications a <STRONG>32</STRONG>-bit'<STRONG>ippcore.dll</STRONG>' will<BR />be loaded.<BR /><BR />This is a <SPAN style="text-decoration: underline;">very old story</SPAN> going back to <STRONG>1992-1993</STRONG>when <STRONG>Microsoft</STRONG> released <STRONG>Win32s</STRONG> extention for a <STRONG>16</STRONG>-bit<BR /><STRONG>Windows 3.1</STRONG> operating system. It was an awesome upgrade since it allowed to changememory<BR />architecture:<BR /><BR /> from <STRONG>16</STRONG>-bit ( 16:16 )to<STRONG>32</STRONG>-bit ( 0:32 )<BR /> segment-basedflat<BR /><BR />and as soon as <STRONG>Win32s</STRONG> extention was installed <STRONG>Windows 3.1</STRONG>could not be called any longeras a<STRONG>16</STRONG>-bit<BR />operating system!<BR /><BR />On <STRONG>Windows 3.1</STRONG> the <STRONG>Win32s</STRONG> extensionallowed to execute <STRONG>32</STRONG>-bit and <STRONG>16</STRONG>-bit applications. But, it created<BR />lots of "spin-off" problems. Software developers wanted touse <STRONG>16</STRONG>-bit and <STRONG>32</STRONG>-bit modules together,in one<BR />address space, like:<BR /><BR /> <SPAN style="text-decoration: underline;">Use Cases 1 &amp; 2:</SPAN><BR /> <STRONG>16</STRONG>-bit applicationattempts to load\use a <STRONG>32</STRONG>-bit dll<BR /> or<BR /> <STRONG>32</STRONG>-bit application attempts to load\use a <STRONG>16</STRONG>-bit dll<BR /><BR />In order to satisfy a growing demand <STRONG>Microsoft</STRONG> invented <SPAN style="text-decoration: underline;">three</SPAN> different "<STRONG>thunk</STRONG>" techniques and they<BR />allowed to do some "<STRONG>magic</STRONG>". It was possible to "mix" <STRONG>16</STRONG>-bit and <STRONG>32</STRONG>-bit modules butall three "<STRONG>thunk</STRONG>"<BR />techniques were incompatible because theywere designedfor different operating systems, <STRONG>Windows 3.1</STRONG>,<BR /><STRONG>Windows 95</STRONG> and <STRONG>Windows NT3.x</STRONG>.<BR /><BR />Here are two more <SPAN style="text-decoration: underline;">Use Cases</SPAN>for <STRONG>32</STRONG>-bit and <STRONG>64</STRONG>-bit modules on a <STRONG>64</STRONG>-bit operating system.<BR /><BR /> <SPAN style="text-decoration: underline;">Use Cases3 &amp; 4:</SPAN><BR /> <STRONG>32</STRONG>-bit applicationattempts to load\use a <STRONG>64</STRONG>-bit dll<BR /> or<BR /> <STRONG>64</STRONG>-bit application attempts to load\use a <STRONG>32</STRONG>-bit dll<BR /><BR /><STRONG>To summarize everything:</STRONG><BR /><BR /><SPAN style="text-decoration: underline;">Use Cases 1 &amp; 2</SPAN> and <SPAN style="text-decoration: underline;">Use Cases 3 &amp; 4</SPAN> are<STRONG><SPAN style="text-decoration: underline;">not</SPAN></STRONG>going to work without special "<STRONG>magic</STRONG>" techniques.</P> Fri, 13 Jan 2012 01:58:24 GMT https://community.intel.com/t5/Intel-Integrated-Performance/can-I-use-ippcore-lib-32-bit-version-in-a-x64-project/m-p/831458#M5580 SergeyKostrov 2012-01-13T01:58:24Z Can I use ippcore.lib (32-bit version) in a x64 project https://community.intel.com/t5/Intel-Integrated-Performance/can-I-use-ippcore-lib-32-bit-version-in-a-x64-project/m-p/831459#M5581 Many Thanks Sergey for the answer, and also for the history (101) lesson, about the MicroSoft. Fri, 13 Jan 2012 16:15:16 GMT https://community.intel.com/t5/Intel-Integrated-Performance/can-I-use-ippcore-lib-32-bit-version-in-a-x64-project/m-p/831459#M5581 jeanmarie_stcyr 2012-01-13T16:15:16Z