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32 lines
578 B
Plaintext
32 lines
578 B
Plaintext
NAME
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isnull - whether a value is a null value
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SYNOPSIS
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isnull(x)
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TYPES
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x any, &any
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return int
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DESCRIPTION
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Determine if x is a null value. This function will return 1 if x is
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a null value, 0 otherwise.
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EXAMPLE
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> mat a[2]
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> print isnull(a), isnull(1)
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1 0
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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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isassoc, isatty, isblk, isconfig, isdefined, iserror, iseven, isfile,
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ishash, isident, isint, islist, ismat, ismult, isnum, isobj,
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isobjtype, isodd, isprime, isrand, israndom, isreal, isrel,
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issimple, issq, isstr, istype
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