watch-later/cpplinq

A simple linq library for C++.

CppLinq

A simple LINQ library for C++.

Usage

To find the square root of the non-negative even numbers less than 10:

using namespace std;
using namespace linq;

range(0, 10) >>
	where([](int a) { return a % 2 == 0; }) >>
	select([](int a) { return sqrt(a); }) >>
	for_each([](double a) { cout << a << endl; });

Here we use operator>> to make it extensible. For extension sample, see extension_test.cpp.

Supported methods

Core

• append
• concat
• insert
• prepend
• range
• repeat

Query

• select
• select_index
• select_many
• select_many_index
• skip
• skip_while
• skip_while_index
• take
• take_while
• take_while_index
• where
• where_index
• zip
• zip_index

Aggregate

• aggregate
• all
• any
• average
• back
• contains
• count
• default_if_empty
• distinct
• empty
• except
• for_each
• for_each_index
• front
• get_at
• group
• group_join
• index_of
• intersect
• join
• limit
• max
• min
• peek
• peek_index
• reverse
• single
• sort
• sum
• union_set

ToContainer

• to_deque
• to_list
• to_map
• to_multimap
• to_multiset
• to_set
• to_unordered_map
• to_unordered_multimap
• to_unordered_multiset
• to_unordered_set
• to_vector

String

• ends_with
• instr
• joinstr
• read_lines
• remove
• replace
• split
• starts_with
• trim
• trim_right
• trim_left
• write_lines