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Overflow (248063459)
Overflow may refer to: Computing and telecommunications * Integer overflow, a condition that occurs when an integer calculation produces a result that is greater than what a given register can store or represent * Buffer overflow, a situation whereby the incoming data size exceeds that which can be accommodated by a buffer. ** Heap overflow, a type of buffer overflow that occurs in the heap data area * Overflow (software), a NASA-developed computational fluid dynamics program using overset (Chimera) grids *Overflow condition, a situation that occurs when more information is being transmitted than the hardware can handle *Overspill, a proof technique in non-standard analysis, is less commonly called overflow * Stack overflow in which a computer program makes too many subroutine calls and its call stack runs out of space Other * Overflow (company), a Japanese video game developer * ''Overflow'' (magazine), a free quarterly in Brooklyn, New York, US *River overflow A flood is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Integer Overflow
In computer programming, an integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside of the range that can be represented with a given number of digits – either higher than the maximum or lower than the minimum representable value. The most common result of an overflow is that the least significant representable digits of the result are stored; the result is said to ''wrap'' around the maximum (i.e. modulo a power of the radix, usually two in modern computers, but sometimes ten or another radix). An overflow condition may give results leading to unintended behavior. In particular, if the possibility has not been anticipated, overflow can compromise a program's reliability and security. For some applications, such as timers and clocks, wrapping on overflow can be desirable. The C11 standard states that for unsigned integers, modulo wrapping is the defined behavior and the term overflow never applies: "a computation involving un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buffer Overflow
In information security and programming, a buffer overflow, or buffer overrun, is an anomaly whereby a program, while writing data to a buffer, overruns the buffer's boundary and overwrites adjacent memory locations. Buffers are areas of memory set aside to hold data, often while moving it from one section of a program to another, or between programs. Buffer overflows can often be triggered by malformed inputs; if one assumes all inputs will be smaller than a certain size and the buffer is created to be that size, then an anomalous transaction that produces more data could cause it to write past the end of the buffer. If this overwrites adjacent data or executable code, this may result in erratic program behavior, including memory access errors, incorrect results, and crashes. Exploiting the behavior of a buffer overflow is a well-known security exploit. On many systems, the memory layout of a program, or the system as a whole, is well defined. By sending in data designed to ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heap Overflow
A heap overflow, heap overrun, or heap smashing is a type of buffer overflow that occurs in the heap data area. Heap overflows are exploitable in a different manner to that of stack-based overflows. Memory on the heap is dynamically allocated at runtime and typically contains program data. Exploitation is performed by corrupting this data in specific ways to cause the application to overwrite internal structures such as linked list pointers. The canonical heap overflow technique overwrites dynamic memory allocation linkage (such as malloc metadata) and uses the resulting pointer exchange to overwrite a program function pointer. For example, on older versions of Linux, two buffers allocated next to each other on the heap could result in the first buffer overwriting the second buffer's metadata. By setting the in-use bit to zero of the second buffer and setting the length to a small negative value which allows null bytes to be copied, when the program calls free() on the first buf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overflow (software)
OVERFLOW - the OVERset grid FLOW solver - is a software package for simulating fluid flow around solid bodies using computational fluid dynamics (CFD). It is a compressible 3-D flow solver that solves the time-dependent, Reynolds-averaged, Navier–Stokes equations using multiple overset structured grids. History OVERFLOW was developed as part of a collaborative effort between NASA's Johnson Space Center in Houston, Texas and NASA Ames Research Center (ARC) in Moffett Field, California. The driving force behind this work was the need for evaluating the flow about the Space Shuttle launch vehicle. Originally developed in the early 1990s by NASA's Pieter Buning, Dennis Jespersen and others, the code is an outgrowth of earlier codes F3D and ARC3D, and a result of ARC's long history of flow-solver development. Usage Scientists use OVERFLOW to better understand the aerodynamic forces on a vehicle by evaluating the flowfield surrounding the vehicle. While wind tunnel testing provi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overflow Condition
Traffic shaping is a bandwidth management technique used on computer networks which delays some or all datagrams to bring them into compliance with a desired ''traffic profile''. Traffic shaping is used to optimize or guarantee performance, improve latency, or increase usable bandwidth for some kinds of packets by delaying other kinds. It is often confused with traffic policing, the distinct but related practice of packet dropping and packet marking. The most common type of traffic shaping is application-based traffic shaping. In application-based traffic shaping, fingerprinting tools are first used to identify applications of interest, which are then subject to shaping policies. Some controversial cases of application-based traffic shaping include bandwidth throttling of peer-to-peer file sharing traffic. Many application protocols use encryption to circumvent application-based traffic shaping. Another type of traffic shaping is route-based traffic shaping. Route-based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overspill
In nonstandard analysis, a branch of mathematics, overspill (referred to as ''overflow'' by Goldblatt (1998, p. 129)) is a widely used proof technique. It is based on the fact that the set of standard natural numbers N is not an internal subset of the internal set *N of hypernatural numbers. By applying the induction principle for the standard integers N and the transfer principle we get the principle of internal induction: For any ''internal'' subset ''A'' of *N, if :# 1 is an element of ''A'', and :# for every element ''n'' of ''A'', ''n'' + 1 also belongs to ''A'', then :''A'' = *N If N were an internal set, then instantiating the internal induction principle with N, it would follow N = *N which is known not to be the case. The overspill principle has a number of useful consequences: * The set of standard hyperreals is not internal. * The set of bounded hyperreals is not internal. * The set of infinitesimal In mathematics, an inf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stack Overflow
In software, a stack overflow occurs if the call stack pointer exceeds the stack bound. The call stack may consist of a limited amount of address space, often determined at the start of the program. The size of the call stack depends on many factors, including the programming language, machine architecture, multi-threading, and amount of available memory. When a program attempts to use more space than is available on the call stack (that is, when it attempts to access memory beyond the call stack's bounds, which is essentially a buffer overflow), the stack is said to ''overflow'', typically resulting in a program crash. Causes Infinite recursion The most-common cause of stack overflow is excessively deep or infinite recursion, in which a function calls itself so many times that the space needed to store the variables and information associated with each call is more than can fit on the stack. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overflow (company)
(stylized 0verflow) is a Japanese video game division of specializing in the production of mature interactive fiction. The Overflow label is known for its game franchise '' School Days''. Stack's headquarters are located in the in Kanda, Chiyoda, Tokyo. Overflow's ''PureMail'' video game was adapted into a two-episode OAV in 2001. Overflow's ''Imouto de Ikou!'' video game was adapted into a two-episode OVA in 2003. Overflow's ''School Days'' video game was adapted into a 12-episode anime series in 2007. Both ''School Days'' and ''Cross Days'' have also received manga adaptations. Stack's ''Welcome to Pia Carrot!!'' video game series was adapted into a three-episode hentai OVA from 1997 to 1998. Its sequel, ''Welcome to Pia Carrot!! 2'' was adapted into a three-episode hentai OVA from 1998 to 1999, and a six-episode OVA titled ''Welcome to the Pia Carrot!! 2 DX'' from 1999 to 2000. The video game also received an anime film titled ''Welcome to Pia Carrot!! -Sayaka no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overflow (magazine)
''Overflow'' is a free, print magazine covering the arts and pop culture of the neighborhoods surrounding the Gowanus Canal in South Brooklyn, New York. Specifically, the magazine covers stories related to "Park Slope, Gowanus, Cobble Hill, Carroll Gardens, Red Hook, and Boerum Hill Boerum Hill (pronounced ) is a small neighborhood in the northwestern portion of the New York City borough of Brooklyn, bounded by Schermerhorn Street to the north and Fourth Avenue to the east. The western border is variously given as either Sm ...." The quarterly magazine launched in 2008. References Visual arts magazines published in the United States Quarterly magazines published in the United States Free magazines Local interest magazines published in the United States Magazines established in 2008 Magazines published in New York City {{local-mag-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Overflow
A flood is an overflow of water ( or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrology and are of significant concern in agriculture, civil engineering and public health. Human changes to the environment often increase the intensity and frequency of flooding, for example land use changes such as deforestation and removal of wetlands, changes in waterway course or flood controls such as with levees, and larger environmental issues such as climate change and sea level rise. In particular climate change's increased rainfall and extreme weather events increases the severity of other causes for flooding, resulting in more intense floods and increased flood risk. Flooding may occur as an overflow of water from water bodies, such as a river, lake, or ocean, in which the water overtops or breaks levees, resulting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
