| description | title | ms.date | f1_keywords | helpviewer_keywords | ms.assetid | ||
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Learn more about: Compiler Warning (level 1) C4391 |
Compiler Warning (level 1) C4391 |
11/04/2016 |
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95c6182c-fae9-4174-8f7b-98aa352e68ca |
'signature' : incorrect return type for intrinsic function, expected 'type'
A function declaration for a compiler intrinsic had the wrong return type. The resulting image may not run correctly.
To fix this warning, either correct the declaration or delete the declaration and simply #include the appropriate header file.
The following sample generates C4391:
// C4391.cpp
// compile with: /W1
// processor: x86
// uncomment the following line and delete the line that
// generated the warning to resolve
// #include "xmmintrin.h"
#ifdef __cplusplus
extern "C" {
#endif
extern void _mm_load_ss(float *p); // C4391
#ifdef __cplusplus
}
#endif
int main()
{
}