``Pointers are like jumps, leading wildly from one part of the data
structure to another. Their introduction into high-level languages has been
a step backwards from which we may never recover''
-- C.A.R.Hoare ``Hints on Programming Language Design'' 1973
[This has been reprinted in several anthologies --- for example, the
Prentice-Hall collection of essays and papers by Tony Hoare]
Fascinatingly, Knuth has said in an interview that pointers are the greatest
concept of C. Which indicates that Hoare must be right.
Pascal n.
An Algol-descended language designed by
Niklaus Wirth on the CDC 6600 around 1967-68 as an instructional
tool for elementary programming. This language, designed primarily
to keep students from shooting themselves in the foot and thus
extremely restrictive from a general-purpose-programming point of
view, was later promoted as a general-purpose tool and, in fact,
became the ancestor of a large family of languages including
Modula-2 and Ada (see also bondage-and-discipline l
summed up by a devastating (and, in its deadpan way, screamingly
funny) 1981 paper by Brian Kernighan (of K&...
aliasing bug n.
A class of subtle programming errors that
can arise in code that does dynamic allocation, esp. via
malloc(3) or equivalent. If several pointers address
(`aliases for') a given hunk of storage, it may happen that the
storage is freed or reallocated (and thus moved) through one alias
and then referenced through another, which may lead to subtle (and
possibly intermittent) lossage depending on the state and the
allocation history of the malloc arena....
aliasing bug: n. A class of subtle programming errors that can
arise in code that does dynamic allocation, esp. via
`malloc(3)' or equivalent. If several pointers address
(`aliases for') a given hunk of storage, it may happen that the
storage is freed or reallocated (and thus moved) through one alias
and then referenced through another, which may lead to subtle (and
possibly intermittent) lossage depending on the state and the
allocation history of the malloc {arena}....