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・ overdrive
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・ overflow flag
・ overflow pdl
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・ overloading
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overrun screw
・ overuse strain injury
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overrun screw : FOLDOC
overrun screw
A variety of fandango on core produced by a C program scribbling past the end of an array (C implementations typically have no checks for this error). This is relatively benign and easy to spot if the array is static; if it is {auto}, the result may be to smash the stack - often resulting in {heisenbugs} of the most diabolical subtlety. The term "overrun screw" is used especially of scribbles beyond the end of arrays allocated with malloc; this typically overwrites the allocation header for the next block in the arena, producing massive lossage within malloc and often a core dump on the next operation to use stdio or malloc itself.
See spam, overrun; see also memory leak, memory smash, aliasing bug, precedence lossage, fandango on core, secondary damage.
(1995-01-19)



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