(C++) lexical_cast.hpp: Negating unsigned value

 

Compile warning.

 

 

 

 

 

Full warning message

 

---

[C++ Warning] lexical_cast.hpp(468): W8041 Negating unsigned value [C++ Warning] lexical_cast.hpp(474): W8041 Negating unsigned value

 

 

 

 

 

Cause

 

---

#include <boost/lexical_cast.hpp>

 

Which takes you to the following line in 'include/boost/lexical_cast.hpp':

 

---

inline unsigned int lcast_to_unsigned(int value) { unsigned int uval = value; return value < 0 ? -uval : uval; //This line } inline unsigned long lcast_to_unsigned(long value) { unsigned long uval = value; return value < 0 ? -uval : uval; //This line }

 

IDE: C++ Builder 6.0

Compiler: Borland BCC32.EXE version 6.0.10.157

Boost version: 1.35.0.

 

 

 

 

 

Solution

 

This compiler is not supported by Boost. Change to another compiler.

 

To suppress the warning write the code below, that disables the warning temporarily.

 

---

//Specific for BCC32.exe #pragma warn -8041 #include <boost/lexical_cast.hpp> #pragma warn +8041