Convert 2 char into 1 int

Posted by Leo on Stack Overflow See other posts from Stack Overflow or by Leo
Published on 2012-12-15T16:56:19Z Indexed on 2012/12/15 17:03 UTC
Read the original article Hit count: 153

Filed under:

c

|

casting

|

char

|

int

I have 2 chars: HIGH and LOW and I'd like to convert them to an int corresponding to HIGH + the 2 left bits from LOW.

I tried somethine like :

char *HIGH;
char *LOW;
HIGH = 152;
LOW = 12;
int result;
result += (LOW + 6);
result += (LOW + 7)*2;
result += HIGH*4;
result += (HIGH + 1)*8;
result += (HIGH + 2)*16;
result += (HIGH + 3)*32;
result += (HIGH + 4)*64;
result += (HIGH + 5)*128;
result += (HIGH + 6)*256;
result += (HIGH + 7)*512;
return result;

But it doesn't work and I don't understand why.

Related posts about casting

Interface Casting vs. Class Casting

as seen on Stack Overflow - Search for 'Stack Overflow'
I've been led to believe that casting can, in certain circumstances, become a measurable hindrance on performance. This may be moreso the case when we start dealing with incoherent webs of nasty exception throwing\catching. Given that I wish to create more correct heuristics when it comes to programming… >>> More
Which casting technique is better for doing casting from upper class to lower class in C++

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi all, i want to cast from upper class pointer to lower class i.e from the base class pointer to derived class pointer. Should i use "Dynamic_cast" or "reinterpret_cast"? please advice me >>> More
Type Casting variables in PHP: Is there a practical example?

as seen on Programmers - Search for 'Programmers'
PHP, as most of us know, has weak typing. For those who don't, PHP.net says: PHP does not require (or support) explicit type definition in variable declaration; a variable's type is determined by the context in which the variable is used. Love it or hate it, PHP re-casts variables on-the-fly… >>> More
Explicit casting doesn't work in default model binding

as seen on Stack Overflow - Search for 'Stack Overflow'
I am using ASP.NET MVC2 and Entity Framework. I am going to simplify the situation a little; hopefully it will make it clearer, not more confusing! I have a controller action to create address, and the country is a lookup table (in other words, there is a one-to-many relationship between Country… >>> More
PHP Equivalent of Java Type-Casting Solution

as seen on Stack Overflow - Search for 'Stack Overflow'
Since PHP has no custom-class type-casting, how would I go about doing the PHP equivalent of this Java code: CustomBaseObject cusBaseObject = cusBaseObjectDao.readCustomBaseObjectById(id); ((CustomChildObject) cusBaseObject).setChildAttribute1(value1); ((CustomChildObject) cusBaseObject).setChildAttribute2(value2); In… >>> More

Developer IT

Convert 2 char into 1 int - Developer IT

Convert 2 char into 1 int

c

casting

char

int

Related posts about c

Related posts about casting

Interface Casting vs. Class Casting

Which casting technique is better for doing casting from upper class to lower class in C++

Type Casting variables in PHP: Is there a practical example?

Explicit casting doesn't work in default model binding

PHP Equivalent of Java Type-Casting Solution

Categories cloud