One answer is certainly 'because the ANSI C standard says that global variables behave that … char buf [1024]; strcpy (buf, "hello"); char clone [1024]; memcpy (clone, buf, 1024); You should fix that by doing something smarter like. This code invokes Undefined Behavior (UB), since the variable is used uninitialized. LKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH 4.14 000/121] 4.14.111-stable review @ 2019-04-04 8:46 Greg Kroah-Hartman 2019-04-04 8:46 ` [PATCH 4.14 001/121] arm64: debug: Dont propagate UNKNOWN FAR into si_code for debug signals Greg Kroah-Hartman ` (125 more replies) 0 siblings, 126 replies; 127+ messages in thread From: … 14. txt --inconclusive --enable = warning aikur.de Uninitialized primitive data types in C/C++ Program 2:51 Speed 1x Quality 540p php variables global initialization c++ static shared-libraries objective-c dealloc python web.py c regex perl encryption asp.net-mvc iphone singleton cocoa xcode global-variables cocos2d-iphone ruby-on-rails codeigniter java oop interpreter local model-view-controller genshi turbogears2 finally unit-testing code-organization c# asp.net linux So all together: There is no way to know what value you get when reading an uninitialized variable and further it’s not even sure that your program will continue to execute as it may be a trap. This difference periodically strikes people as peculiar and you might wonder why C is this way. *PATCH 0/6] Remove usage of list iterator past the loop body @ 2022-02-28 11:08 Jakob Koschel 2022-02-28 11:08 ` [PATCH 1/6] drivers: usb: remove" Jakob Koschel ` (6 more replies) 0 siblings, 7 replies; 85+ messages in thread From: Jakob Koschel @ 2022-02-28 11:08 UTC (permalink / raw) To: Linus Torvalds Cc: Jakob Koschel, linux-arch, Thomas Gleixner, Arnd Bergman, Andy … Uninitialized variables aren't uninitialized variables always 0 in C The Console Window is defined as an object in the Acrobat JavaScript DOM (Document Object Model). Although the uninitialized variable is not identified by name, the source file and line number make it easy to find. Is there any other way to ensure that the dispsose method is called, regardless of any thrown errors?
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how to find uninitialized variables in c++