How character can be signed and unsigned

#1

how character can be signed and unsigned ???
why signed short int is not the error and double float is error ??

#2

hi anuj
signed character are used to store some -ve value don’t thinks its of -A or -a
as in computer all thing are stored in the form of number

signed -127 127 unsigned 0 255
for 2nd question
this is the compiler predefined terms
so there is not a proper reason why it has done float is always signed and for int we have to option either only positive or both

#3

signed short int has 3 modifier and double float has 2 modifier even than 1st runs successfully but double float fails ???

#4

double and float are 2 diff datatype

#5

Hi anuj
Signed and Unsigned are imp. only when doing math on chars for eg.
char a = (char)42;
char b = (char)120;
char c = a + b;
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 it will an overflow case as the max value for a signed char is 128.

Reply if resolved :slight_smile:

#6

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