Jul 31, 2009 · a signed char is always 8 bit and has always the signed bit as the last bit. an unsigned char is always 8 bit and doesn't have a sign bit. a ...

May 12, 2013 · If you consider it unsigned, it can represent values 0 to 255. By the C++ standard, a signed char is guaranteed to be able to hold values -127 ...

Jan 13, 2010 · According to the C standard the signedness of plain char is "implementation defined". In general implementors chose whichever was more ...

Jun 13, 2013 · char is not always signed. And ASCII ends at 127, so it's fairly logical not to go past considering nearly all systems use it.

Jan 6, 2015 · GCC provides compiler options to force char to have whatever signedness you like. It exists precisely to work around non-portable buggy code like this.

Mar 26, 2015 · According to the standard, whether char is signed or not is implementation-defined. This has caused me some trouble. Following are some examples.

Sep 28, 2017 · According to this reference link : The C and C++ standards allows the character type char to be signed or unsigned, depending on the platform ...

Mar 8, 2014 · You would use a signed char when you need to represent a quantity in the range [-128, 127] and you can't (for whatever reason) spare more than a single byte to ...

Aug 14, 2013 · Apparently there is a possibility that plain char can be either signed or unsigned by default. Stroustrup writes: It is implementation-defined ...

Jan 12, 2009 · The reason seems to be that C++ sees char, signed char and unsigned char as three different types. Whereas int is the same as a signed int.