Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Uninitialized_variable> ?p ?o. }
Showing items 1 to 27 of
27
with 100 items per page.
- Uninitialized_variable abstract "In computing, an uninitialized variable is a variable that is declared but is not set to a definite known value before it is used. It will have some value, but not a predictable one. As such, it is a programming error and a common source of bugs in software.A common assumption made by novice programmers is that all variables are set to a known value, such as zero, when they are declared. While this is true for many languages, it is not true for all of them, and so the potential for error is there. Languages such as C use stack space for variables, and the collection of variables allocated for a subroutine is known as a stack frame. While the computer will set aside the appropriate amount of space for the stack frame, it usually does so simply by adjusting the value of the stack pointer, and does not set the memory itself to any new state (typically out of efficiency concerns). Therefore, whatever contents of that memory at the time will appear as initial values of the variables which occupy those addresses.Here's a simple example in C:What is the final value of k? The fact is, it is impossible to tell. The answer that it must be 10 assumes that it started at zero, which may or may not be true. Note that in the example, the variable i is initialized to zero by the first clause of the for statement.In C, variables with static storage duration that are not initialized explicitly are initialized to zero (or null, for pointers).Not only are uninitialized variables a frequent cause of bugs, but this kind of bug is particularly serious because it may not be reproducible; in some cases, programs with uninitialized variables may even pass software tests.".
- Uninitialized_variable wikiPageID "1137903".
- Uninitialized_variable wikiPageRevisionID "543878496".
- Uninitialized_variable hasPhotoCollection Uninitialized_variable.
- Uninitialized_variable subject Category:Software_bugs.
- Uninitialized_variable subject Category:Variable_(computer_programming).
- Uninitialized_variable type Animal100015388.
- Uninitialized_variable type Arthropod101767661.
- Uninitialized_variable type Bug102236355.
- Uninitialized_variable type Insect102159955.
- Uninitialized_variable type Invertebrate101905661.
- Uninitialized_variable type LivingThing100004258.
- Uninitialized_variable type Object100002684.
- Uninitialized_variable type Organism100004475.
- Uninitialized_variable type PhysicalEntity100001930.
- Uninitialized_variable type SoftwareBugs.
- Uninitialized_variable type Whole100003553.
- Uninitialized_variable comment "In computing, an uninitialized variable is a variable that is declared but is not set to a definite known value before it is used. It will have some value, but not a predictable one. As such, it is a programming error and a common source of bugs in software.A common assumption made by novice programmers is that all variables are set to a known value, such as zero, when they are declared.".
- Uninitialized_variable label "Uninitialized variable".
- Uninitialized_variable label "Variable no inicializada".
- Uninitialized_variable sameAs Variable_no_inicializada.
- Uninitialized_variable sameAs m.049jmz.
- Uninitialized_variable sameAs Q2912653.
- Uninitialized_variable sameAs Q2912653.
- Uninitialized_variable sameAs Uninitialized_variable.
- Uninitialized_variable wasDerivedFrom Uninitialized_variable?oldid=543878496.
- Uninitialized_variable isPrimaryTopicOf Uninitialized_variable.