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weak typing
<programming> Strict enforcement of type rules but with
well-defined exceptions or an explicit type-violation
mechanism.
Weak typing is "friendlier" to the programmer than strong
typing, but catches fewer errors at compile time.
C and C++ are weakly typed, as they automatically coerce
many types e.g. ints and floats. E.g.
int a = 5;
float b = a;
They also allow ignore typedefs for the purposes of type
comparison; for example the following is allowed, which would
probably be disallowed in a strongly typed language:
typedef int Date; /* Type to represent a date */
Date a = 12345;
int b = a; /* What does the coder intend? */
C++ is stricter than C in its handling of enumerated types:
enum animal {CAT=0,DOG=2,ANT=3};
enum animal a = CAT; /* NB The enum is optional in C++ */
enum animal b = 1; /* This is a warning or error in C++ */
(2000-07-04)
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Nearby terms:
WE « Weak Head Normal Form « weakly typed « weak typing » weasel » WEB » Web
This article was derived from the Free Online Dictionary of Computers and is available under ther terms of the GNU Free Documentation License.
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