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36 lines
1004 B
Plaintext
36 lines
1004 B
Plaintext
NAME
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calclevel - current calculation level
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SYNOPSIS
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calclevel()
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TYPES
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return nonnegative integer
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DESCRIPTION
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This function returns the calculation level at which it is called.
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When a command is being read from a terminal or from a file,
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calc is at calculation level zero. The level is increased
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by 1 each time calculation starts of a user-defined function
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or of eval(S) for some expression S which evaluates to a string. It
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decreases to zero if an error occurs or a quit or abort statement
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is executed. Otherwise, it decreases by 1 when the calculation
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is completed. Except when an error occurs or abort is executed,
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the input level is not affected by changes in the calculation level.
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Zero calculation level is also called top calculation level; greater
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values of calclevel() indicate calculation is occurring at greater
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depths.
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EXAMPLE
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n/a
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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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eval, read, quit, abort, inputlevel
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