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Search results:
N^N — compute exponential
&e — base of natural logarithms
&phi — golden ratio
&pi — pi
&random : i — random seed
+N — compute positive
-N — compute negative
abs — compute absolute value
acos — compute arc cosine
asin — compute arc sine
atan — compute arc tangent
cos — compute cosine
dtor — convert degrees to radians
exp — compute exponential
i to i by i — generate integers in sequence
iand — compute bitwise AND
icom — compute bitwise complement
integer — convert to integer
ior — compute bitwise inclusive OR
ishift — arithmetic shift bits
ixor — compute bitwise exclusive OR
log — compute logarithm
N%N — compute remainder
N+N — compute sum
N/N — compute quotient
N1∗N2 — compute product
N<=N — numerically less than or equal
N<N — numerically less than
N=N — numerically equal
N>=N — numerically greater than or equal
N>N — numerically greater than
numeric — convert to numeric
N~=N — numerically not equal
N–N — compute difference
real — convert to real
rtod — convert radians to degrees
seq — generate sequence of integers
sin — compute sine
sqrt — compute square root
tan — compute tangent

Index of Function Types:
affects &pos
character sets
co-expressions
control structures
file processing
generators
infix operations
keywords
lists, sets and tables
math
metadata
output formatting
pattern matching
prefix operations
records
strings
windows and keyboards

Index of Subsystems:
base
digitcnt.icn
SNOBOL4 functions
 
generate values
 
Description

!x1 : x2, x3, ..., xn
!x1 is a generator.

If x1 is a file, !x1 generates the remaining lines of x1.

if x1 is a string, x1 generates the one-character substrings of x1, and produces variables if x1 is a variable.

If x1 is a list or record, !x1 generates the elements of x1, which are variables. The order of generation is from the beginning to the end.

If x1 is a set, !x1 generates the members of x1 in no predictable order.

If x1 is a table, !x1 generates the elements of x1 as variables in no predictable order.
 
Parameters
x1
file, string, variable, list, record, set or table
returns
successive values of x1 until failure.
 
Errors
103 x1 originally string, but type changed between resumptions.
116 x1 is not string, file, or a structure.
212 x1 is file but not open for reading.