On 02/28/2013 02:18 AM, John Colvin wrote:
On Thursday, 28 February 2013 at 01:14:31 UTC, Timon Gehr wrote:
On 02/28/2013 02:11 AM, Walter Bright wrote:
A SentinelInputRange is an InputRange with the following additions:
1. a compile time property 'sentinel' that is the terminating value of
the range
2. empty is defined as: empty = (front == sentinel)
3. it is not necessary for empty to be called before front
A C style 0-terminated string is an example of a SentinelInputRange.
The additions to std.range would be:
1. isSentinelInputRange(T) which returns true if T is a
SentinelInputRange
2. a unittest
3. documentation of this
An addition to std.string would be a function that takes a char* and
returns a SentinelInputRange.
Motivation:
1. easy conversion of C strings to ranges
2. necessary for a fast implementation of a lexer
Any takers?
This is not general enough. The concept is not exclusive to input ranges.
I presume you're remembering that if something is a forward,
bidirectional or random access range it is also an input range.
What further generality would you want?
Never mind. I was confused.
