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functions in std.i - t
timer
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timer, elapsed
or timer, elapsed, split
updates the ELAPSED and optionally SPLIT timing arrays. These
arrays must each be of type array(double,3); the layout is
[cpu, system, wall], with all three times measured in seconds.
ELAPSED is updated to the total times elapsed since this copy
of Yorick started. SPLIT is incremented by the difference between
the new values of ELAPSED and the values of ELAPSED on entry.
This feature allows for primitive code profiling by keeping
separate accounting of time usage in several categories, e.g.--
elapsed= total= cat1= cat2= cat3= array(double, 3);
timer, elapsed0;
elasped= elapsed0;
... category 1 code ...
timer, elapsed, cat1;
... category 2 code ...
timer, elapsed, cat2;
... category 3 code ...
timer, elapsed, cat3;
... more category 2 code ...
timer, elapsed, cat2;
timer, elapsed0, total;
The wall time is not absolutely reliable, owning to possible
rollover at midnight.
builtin function, documented at i0/std.i line 2639
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SEE ALSO:
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timestamp,
timer_print
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timer_print
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timer_print, label1, split1, label2, split2, ...
or timer_print
or timer_print, label_total
prints out a timing summary for splits accumulated by timer.
timer_print, "category 1", cat1, "category 2", cat2,
"category 3", cat3, "total", total;
interpreted function, defined at i0/std.i line 2667
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SEE ALSO:
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timer
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timestamp
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timestamp()
returns string of the form "Sun Jan 3 15:14:13 1988" -- always
has 24 characters.
builtin function, documented at i0/std.i line 2632
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SEE ALSO:
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timer
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transpose
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transpose(x)
or transpose(x, permutation1, permutation2, ...)
transpose the first and last dimensions of array X. In the second
form, each PERMUTATION specifies a simple permutation of the
dimensions of X. These permutations are compounded left to right
to determine the final permutation to be applied to the dimensions
of X. Each PERMUTATION is either an integer or a 1D array of
integers. A 1D array specifies a cyclic permutation of the
dimensions as follows: [3, 5, 2] moves the 3rd dimension to the
5th dimension, the 5th dimension to the 2nd dimension, and the 2nd
dimension to the 3rd dimension. Non-positive numbers count from the
end of the dimension list of X, so that 0 is the final dimension,
-1 in the next to last, etc. A scalar PERMUTATION is a shorthand
for a cyclic permutation of all of the dimensions of X. The value
of the scalar is the dimension to which the 1st dimension will move.
Examples: Let x have dimsof(x) equal [6, 1,2,3,4,5,6] in order
to be able to easily identify a dimension by its length. Then:
dimsof(x) == [6, 1,2,3,4,5,6]
dimsof(transpose(x)) == [6, 6,2,3,4,5,1]
dimsof(transpose(x,[1,2])) == [6, 2,1,3,4,5,6]
dimsof(transpose(x,[1,0])) == [6, 6,2,3,4,5,1]
dimsof(transpose(x,2)) == [6, 6,1,2,3,4,5]
dimsof(transpose(x,0)) == [6, 2,3,4,5,6,1]
dimsof(transpose(x,3)) == [6, 5,6,1,2,3,4]
dimsof(transpose(x,[4,6,3],[2,5])) == [6, 1,5,6,3,2,4]
builtin function, documented at i0/std.i line 1064
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typeof
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typeof(object)
returns a string describing the type of object. For the basic
data types, these are "char", "short", "int", "long", "float",
"double", "complex", "string", "pointer", "struct_instance",
"void", "range", "struct_definition", "function", "builtin",
"stream" (for a binary stream), and "text_stream".
builtin function, documented at i0/std.i line 399
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SEE ALSO:
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structof,
dimsof,
sizeof,
numberof,
nameof
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