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40 lines
838 B
Plaintext
40 lines
838 B
Plaintext
NAME
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param - value of argument in a user-function call
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SYNOPSIS
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param(n)
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TYPES
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n nonnegative integer
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return any
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DESCRIPTION
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The function param(n) can be used only within the body of the
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definition of a function. If that function is f() (which may
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have been defined with named arguments as in f(x,y,z)) and
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either the number of arguments or the value of an argument
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in an anticipated call to f() is to be used, the number of
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arguments in that call will then be returned by param(0), and
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the value of the n-th argument by param(n).
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EXAMPLE
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> define f() {
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>> local n, v = 0;
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>> for (n = 1; n <= param(0); n++)
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>> v += param(n)^2;
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>> return v;
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>> }
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> print f(), f(1), f(1,2), f(1,2,3)
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0 1 5 14
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LIMITS
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none
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LIBRARY
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none
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SEE ALSO
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XXX - missing
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