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Questions tagged [unsigned-integer]

A specific data type that uses all its bits to represent an integer value, consequently only 0 or a positive number.

In typed languages, an unsigned integer is a specific data type that uses all its bits to represent an integer value, consequently only 0 or a positive number. It can also represent integers twice the magnitude of the signed integers for the same width since no bit is used up to indicate the sign.

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Binding an 'unsigned long' (uint64) in an sqlite3 statement? C++

I'm using the sqlite3 library that is available at sqlite.org. I have some unsigned longs that I would like store in a database. I do not want to construct the query myself and leave it open to some sort of injection (whether it be accidental or…
g19fanatic
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Difference of using int and uint and when to use

What is the difference between using int and uint? All the examples I have seen so far are using int for integers. Any advantage of using uint? Thanks.
ThickBook
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How to generate random 64-bit unsigned integer in C

I need generate random 64-bit unsigned integers using C. I mean, the range should be 0 to 18446744073709551615. RAND_MAX is 1073741823. I found some solutions in the links which might be possible duplicates but the answers mostly concatenates some…
Erdi İzgi
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C++ Implicit Conversion (Signed + Unsigned)

I understand that, regarding implicit conversions, if we have an unsigned type operand and a signed type operand, and the type of the unsigned operand is the same as (or larger) than the type of the signed operand, the signed operand will be…
2013Asker
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Python: confusion between types and dtypes

Suppose I enter: a = uint8(200) a*2 Then the result is 400, and it is recast to be of type uint16. However: a = array([200],dtype=uint8) a*2 and the result is array([144], dtype=uint8) The multiplication has been performed modulo 256, to ensure…
Alasdair
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How to get an unsigned integer from a byte array in Kotlin JVM?

Kotlin 1.3 introduced unsigned integer types, but I can't seem to figure out how to get an unsigned integer from a ByteArray in Kotlin JVM. Kotlin Native has a convenient ByteArray.getUIntAt() method, but this does not exist for Kotlin JVM. val…
Robby Cornelissen
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How to declare an unsigned 32-bit integer?

Is there a way to declare a 32-bit unsigned integer in PowerShell? I'm trying to add an unsigned (begin with 0xf) i.e. 0xff000000 + 0xAA, but it turned out to be a negative number whereas I want it to be 0xff0000AA.
Patrick
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SQL Server 2008 – Unsigned Integer Data Types

I am using SQL SERVER 2008, I have a number of INT, SMALLINT fields in my various tables, And I know they all will be 0 or greater than 0 i.e. I can take them Unsigned. Is there a simple way of creating/using Unsigned data types OR will I have to…
user899055
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how to add a negative i32 number to an usize variable?

Such as: let mut a : usize = 0xFF; a += -1; // -1 may be from other variable, so there can't be a -= 1; println!("{}", a); The output is: error[E0277]: the trait bound `usize: std::ops::Neg` is not satisfied anyway?
Excosy S.P.
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Does C++14 define the behavior of bitwise operators on the padding bits of unsigned int?

C++ standard If a C++14 implementation includes padding bits in the underlying bytes of an unsigned int , does the standard specify if bitwise operations must not be performed on padding bits ? Additionally, does the C++14 standard specify if…
RalphS
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What's a portable value for UINT_MIN?

In limits.h, there are #defines for INT_MAX and INT_MIN (and SHRT_* and LONG_* and so on), but only UINT_MAX. Should I define UINT_MIN myself? Is 0 (positive zero) a portable value?
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QSpinBox with Unsigned Int for Hex Input

There are a variety of questions written here about QSpinBox's limitation of using an int as its datatype. Often people want to display larger numbers. In my case, I want to be able to show an unsigned 32bit integer in hexadecimal. This means I'd…
user1074897
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Adding signed and unsigned int

#include int main(void) { unsigned int a = 6; int b = -20; a + b > 6 ? puts("> 6") : puts("<= 6"); } It is clear to me how the ternary operator work in this code. I am not able to understand the addition of the signed and…
Nargis
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Unsigned 32 bit integers in Javascript

How can I emulate 32bit unsiged integers without any external dependencies in Javascript? Tricks with x >>> 0 or x | 0 don't work (for multiplication, they seem to work for addition / subtraction), and doubles lose precision during multiplication.…
user1367401
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Casting enum definition to unsigned int

According to this SO post: What is the size of an enum in C? enum types have signed int type. I would like to convert an enum definition from signed int to unsigned int. For example, on my platform an unsigned int is 32-bits wide. I want to…
Thomas Matthews
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