Wrapper class in C for byte like java Byte,Integer,String,Double?

Question

In Java Byte wrapper classes is there like

byte-Byte
int-Integer
float-Float etc

i want to use wrapper classes in c so anyone let me know how to use wrapper classes in c and how to write this in c??

JAVA:

Byte arr= 0x03;

@FelicePollano Are you saying C has no class? How terribly rude :-) — Preet Sangha
– Preet Sangha, Commented Aug 2, 2012 at 12:32
You can't really, as C doesn't have any support to create new types like in Java or C++. — Some programmer dude
– Some programmer dude, Commented Aug 2, 2012 at 12:33
It has support to create new types, just not new classes. C structs are basically just a dumb collection of data. — Antimony
– Antimony, Commented Aug 2, 2012 at 12:36

Antimony · Accepted Answer · 2012-08-02 12:32:57Z

2

In C there are no classes at all. You could create a struct with a char member but I'm not really sure why you'd want to do that.

In C++, you could create a wrapper class. You just need to define implicit conversions to and from char to simulate autoboxing, as well as whatever methods you think the wrapper class should have.

Also, the equivalent of the Java 'byte' type in C and C++ is signed char.

answered Aug 2, 2012 at 12:32

Antimony

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2 Comments

Bo Persson Over a year ago

That's just because everything is signed in Java.

Antimony Over a year ago

@Bo, actually, chars are unsigned.

user405725 · Accepted Answer · 2012-08-02 12:32:41Z

1

In C you write char arr = 0x03;. There are no "wrapppers" or "boxing" for POD types. And you don't really need them.

answered Aug 2, 2012 at 12:32

user405725

4 Comments

poppy Over a year ago

for this code byte[] arr1=new byte[]{0x01}; i have written char arr1[]={0x01}; so for Byte there's no wrapper class in c so i can write like this char arr = 0x03; which is equivalent to Byte arr= 0x03; right?? thank you

user405725 Over a year ago

@poppy: Yes, you can. That is, if you have a single byte. If you write byte [] arr1... in Java, that is called an array, and in C it could be either char *array or char array[].

poppy Over a year ago

then In C what's the equivalent for java Integer,Short,Float wrapper class??

user405725 Over a year ago

@poppy: See "Simple Java Data" here — d.umn.edu/~gshute/java/c2java.html

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