Compiler Warning (level 1) C4556
Collapse the table of content
Expand the table of content
Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here. ArchiveDisclaimer

Compiler Warning (level 1) C4556

Error Message

value of intrinsic immediate argument 'value' is out of range 'lowerbound - upperbound'

An intrinsic matches a hardware instruction. The hardware instruction has a fixed number of bits to encode the constant. If value is out of range, it will not encode properly. The compiler truncates the extra bits.

The following sample generates C4556:

// C4556.cpp
// compile with: /W1
// processor: x86 IPF
#include <xmmintrin.h>
void test()
   __m64 m;
   _m_pextrw(m, 5);   // C4556
int main()
© 2015 Microsoft