Editing Integer (computer science) (section)

=== Long long ===
{{Redirect|long long||Long (disambiguation)}}
In the [[C99]] version of the [[C programming language]] and the [[C++11]] version of [[C++]], a <CODE>long long</CODE> type is supported that has double the minimum capacity of the standard <CODE>long</CODE>. This type is not supported by compilers that require C code to be compliant with the previous C++ standard, C++03, because the {{mono|long long}} type did not exist in C++03. For an ANSI/ISO compliant compiler, the minimum requirements for the specified ranges, that is, −(2<sup>63</sup>&minus;1)<ref name="c-std-6.2.6.2p2" /> to 2<sup>63</sup>−1 for signed and 0 to 2<sup>64</sup>−1 for unsigned,<ref name="c-std-5.2.4.2.1" /> must be fulfilled; however, extending this range is permitted.<ref>{{cite web| url=http://www.ericgiguere.com/articles/ansi-c-summary.html|title=The ANSI Standard: A Summary for the C Programmer|first=Eric|last=Giguere|date=December 18, 1987|access-date=2010-09-04}}</ref><ref>{{cite web|url=http://flash-gordon.me.uk/ansi.c.txt|title=American National Standard Programming Language C specifies the syntax and semantics of programs written in the C programming language.|access-date=2010-09-04|url-status=dead|archive-url=https://web.archive.org/web/20100822072551/http://flash-gordon.me.uk/ansi.c.txt|archive-date=2010-08-22}}</ref> This can be an issue when exchanging code and data between platforms, or doing direct hardware access. Thus, there are several sets of headers providing platform independent exact width types. The C [[standard library]] provides ''[[stdint.h]]''; this was introduced in C99 and C++11.