Signed long long int - Revision history

VolodyA! V Anarhist: /* Other C++ data types storing signed integers */

2015-06-09T18:28:21Z

‎Other C++ data types storing signed integers

VolodyA! V Anarhist at 18:26, 9 June 2015

2015-06-09T18:26:48Z

VolodyA! V Anarhist: released

2015-05-13T06:58:07Z

released

VolodyA! V Anarhist: Created page with "{{FormatInfo | name = signed long long int | formattype = electronic | subcat = Data types | subcat2 = C++ data types | subcat3 = | subcat..."

2015-05-12T12:58:30Z

Created page with "{{FormatInfo | name = signed long long int | formattype = electronic | subcat = Data types | subcat2 = C++ data types | subcat3 = | subcat..."

New page

{{FormatInfo
| name = signed long long int
| formattype = electronic
| subcat = Data types
| subcat2 = C++ data types
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| thiscat =
| extensions =
| mimetypes =
| locfdd =
| fourccs =
| pronom =
| type code =
| uniform type =
| conforms to =
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{{DISPLAYTITLE:signed long long int}}

C++ '''signed long long int''' will take at least 64 bits of memory to hold and cannot be less than [[signed long int]] in any specific implementation; it can, however, differ from compiler to compiler. It usually gets stored as [[two's complement]] integer, but it is not a requirement of the standard.

It can be shortened during declaration or conversion to '''signed long long''', '''long long int''', or just '''long long'''. There is another type that is called just [[signed long int|long]], but there is no "long long long".

'''long long''' can safely store values -2⁶³ – 2⁶³-1, if the value gets too large or too small, a roll over can take place. While the fact of a roll over is a guarantee at some point, a coder cannot assume that it will happen in a specific place, LLONG_MIN and LLONG_MAX constants from <climits> library can be used to determine that.

This is the largest built in data type in C++ at this moment, and it was not available until C++11, unless a specific compiler provided it as a non-standard extension.

==Other C++ data types of the same size==
* [[unsigned long long int]]
* [[wchar_t]] (however, it really is a bad conversion, since even an OS change will render it invalid)

==Other C++ data types storing signed integers==
* [[signed char]] at least 8 bits
* [[signed short int|short]] at least 16 bits, not smaller than signed char
* [[signed int|int]] not less than 16 bits, not smaller than short
* [[signed long|long]] not less than 32 bits, not smaller than int

[[Category:Integer data types]]
[[Category:Enumerable data types]]
[[Category:C++11 data types]]

@@ Line 38: / Line 38: @@
 * [[signed short int|short]] at least 16 bits, not smaller than signed char
 * [[signed int|int]] not less than 16 bits, not smaller than short
-* [[signed long|long]] not less than 32 bits, not smaller than int
+* [[signed long int|long]] not less than 32 bits, not smaller than int
 [[Category:Integer data types]]
 [[Category:Enumerable data types]]
 [[Category:C++11 data types]]

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 | conforms to    =
 | released       = 2011
-| image          =
+| image          = Whole numbers.png
 | caption        =
 }}