Functions
RangeIterator	Qore::xrange (int start, int stop, int step=1, auto val)
	Returns a RangeIterator containing an arithmetic progression of integers. More...

RangeIterator	Qore::xrange (int stop)
	Returns a RangeIterator containing an arithmetic progression of integers with start = 0 and step = 1. More...

Detailed Description

RangeIterator helper functions allow to use RangeItartor in easier usage in loop statements.

Example: foreach int i in(xrange(5))

printf("i=%d\n", i);

# resulting in:

# i=0

# i=1

# i=2

# i=3

# i=4

# i=5

Qore::xrange
RangeIterator xrange(int start, int stop, int step=1, auto val)
Returns a RangeIterator containing an arithmetic progression of integers.

Qore::printf
string printf(string fmt,...)
Outputs the string passed to standard output, using the first argument as a format string; does not e...

Function Documentation

Returns a RangeIterator containing an arithmetic progression of integers.

Example:: xrange(2, 5); # 2, 3, 4, 5

xrange(2, -2); # 2, 1, 0, -1, -2

xrange(1, 10, 5); # 1, 6

xrange(0, 10, 5); # 0, 5, 10

xrange(-10, 10, 5); # -10, -5, 0, 5, 10

xrange(10, -10, 5); # 10, 5, 0, -5, -10

Parameters

start	the initial value
stop	the final value
step	the step; the default is 1; must be greater than 0; the function throws a `RANGE-ERROR` exception when this argument is < 1
val	an optional value to be returned instead of the default integer value

Return values

Returns a RangeIterator containing an arithmetic progression of integers.

Exceptions

RANGEITERATOR-ERROR this exception is thrown if step < 1

Note: the main difference between range() and xrange() is that range returns a real list and xrange() returns a RangeIterator

Since

Qore 0.8.6
Qore 0.8.11.1 this function takes the optional val argument
Qore 0.9.5 does not include the upper limit in the range unless %broken-range is set

RangeIterator Qore::xrange ( int stop )

Returns a RangeIterator containing an arithmetic progression of integers with start = 0 and step = 1.

This is an overloaded version of xrange(int, int, int) meaning xrange(0, stop, 1)

Parameters

stop	the final value

Return values

Returns a RangeIterator containing an arithmetic progression of integers with start = 0 and step = 1.

Note: the main difference between range() and xrange() is that range() returns a real list and xrange() returns a RangeIterator

Since

Qore 0.8.6
Qore 0.9.5 does not include the upper limit in the range unless %broken-range is set