Jul 31, 2009 · Let's assume that your platform has eight-bit bytes, and suppose we have the bit pattern 10101010 . To a signed char , that value is −86.

Jan 1, 2015 · The C-style cast will simply reinterpret the bits and the value that A represents as an unsigned type becomes different.

Sep 28, 2017 · According to the C11 standard (read n1570), char can be signed or unsigned (so you actually have two flavors of C). What exactly it is is implementation ...

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.

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.

Jan 13, 2010 · The standard does not specify if plain char is signed or unsigned. In fact, the standard defines three distinct types: char, signed char, and unsigned char.

Jan 16, 2009 · Depending on the signedness of the char, c could be one of two values. If char's are unsigned then c will be (char)162. If they are signed then ...

May 27, 2009 · "Plain" char having unspecified signed-ness allows compilers to select whichever representation is more efficient for the target ...

Aug 14, 2013 · It is implementation-defined whether a plain char is considered signed or unsigned. This opens the possibility for some nasty surprises and implementation ...

Aug 9, 2011 · signed char is signed. char may be unsigned or signed depending on your platform. Use signed char when you definitely want signedness.