All Stl Solutions on Gang of Coders

Total of 263 Stl Solutions

What is the best way to use two keys with a std::map?

C++Dictionary Stl Key Stdmap

How to update an existing element of std::set?

std::string length() and size() member functions

C++String Stl Size

How can currying be done in C++?

C++Stl Functional Programming Currying Binders

Is it safe to assume that STL vector storage is always contiguous?

C++ Erase vector element by value rather than by position?

C++Vector Stl Erase Erase Remove-Idiom

How to sum up elements of a C++ vector?

Why no emplacement iterators in C++11 or C++14?

C++C++11 Stl Iterator C++14

Using std::map<K,V> where V has no usable default constructor

C++Stl Map Compile Time

Sorting a vector of custom objects

How to retrieve all keys (or values) from a std::map and put them into a vector?

C++Dictionary Stl Stdmap

How to remove constness of const_iterator?

C++Stl Iterator Const Iterator

Extending the C++ Standard Library by inheritance?

C++ How to find the biggest key in a std::map?

How can I sort an STL map by value?

C++Algorithm Sorting Dictionary Stl

std::vector, default construction, C++11 and breaking changes

C++Stl Vector C++11 Backwards Compatibility

Determine if map contains a value for a key?

Pointers as keys in map C++ STL

C++Pointers Map Stl

Relative performance of std::vector vs. std::list vs. std::slist?

C++Data Structures Stl Performance Linked List

Does vector::erase() on a vector of object pointers destroy the object itself?

Can I initialize an STL vector with 10 of the same integer in an initializer list?

C++Stl Constructor Initializer List

Why can't simple initialize (with braces) 2D std::array?

C++Stl C++11 Initialization

Can the 'type' of a lambda expression be expressed?

C++Stl Lambda C++11

Is the std::set iteration order always ascending according to the C++ specification?

How to remove element not at top from priority_queue?

C++Stl Priority Queue Binary Heap

Why does std::pair expose member variables?

C++Stl Encapsulation

STL vectors with uninitialized storage?

C++Optimization Stl Vector

Cleaning up an STL list/vector of pointers

C++List Vector Stl

What is the point of make_heap?

C++Stl Language Design

Why are C++ STL iostreams not "exception friendly"?

C++Exception Stl Iostream

What is the difference between std::list<std::pair> and std::map in C++ STL?

C++Stl Stdmap Std Pair Stdlist

What does the standard library guarantee about self move assignment?

C++Stl C++11 Move Semantics

Is std::unique_ptr<T> required to know the full definition of T?

C++Visual Studio-2010 C++11 Stl Unique Ptr

Generic vector of vectors in C++

initializing std::string from char* without copy

C++String Memory Management Stl

Using local classes with STL algorithms

C++Stl Stl Algorithm

How can I make the map::find operation case insensitive?

C++String Dictionary Stl Case Insensitive

array vs vector vs list

C++Arrays List Stl Vector

Checking whether a vector is empty

What are Containers/Adapters? C++

C++Stl Containers Adapter

Reverse map lookup

Resizing a C++ std::vector<char> without initializing data

C++Stl Vector Resize

C++ vector that doesn't initialize its members?

Why vector access operators are not specified as noexcept?

C++Exception C++11 Stl Noexcept

vector vs. list in STL

C++List Vector Stl

Why use iterators instead of array indices?

C++For Loop Stl Iterator Containers

Why can I not push_back a unique_ptr into a vector?

C++Stl C++11 Smart Pointers Unique Ptr

C++ sorting and keeping track of indexes

C++Sorting Stl Indexing

Remove spaces from std::string in C++

C++String Stl Whitespace

How to convert wstring into string?

C++Unicode Stl Wstring

Is std::vector so much slower than plain arrays?

C++Arrays Performance Stl Vector

push_back vs emplace_back

C++Visual Studio-2010 Stl C++11 Move Semantics

C++ STL Vectors: Get iterator from index?

C++Stl Vector Iterator

C++ equivalent of StringBuffer/StringBuilder?

C++Stl String Concatenation

How do I print the elements of a C++ vector in GDB?

C++Debugging Stl Vector Gdb

What really is a deque in STL?

Why is it wrong to use std::auto_ptr<> with standard containers?

C++Stl Raii Auto Ptr C++ Faq

Why is the C++ STL is so heavily based on templates? (and not on interfaces)

C++Oop Templates Stl

Thou shalt not inherit from std::vector

C++Oop Inheritance Stl Vector

What is the purpose of std::make_pair vs the constructor of std::pair?

C++Stl Std Pair

Why is std::map implemented as a red-black tree?

C++Dictionary Data Structures Stl Binary Search-Tree

Why use non-member begin and end functions in C++11?

C++C++11 Stl Iterator Container Data-Type

Why are Standard iterator ranges [begin, end) instead of [begin, end]?

C++Stl Iterator Standards

In STL maps, is it better to use map::insert than []?

C++Dictionary Stl Insert Stdmap

How to initialize std::vector from C-style array?

C++Arrays Vector Stl

Is std::vector copying the objects with a push_back?

C++Stl Stdvector

In which scenario do I use a particular STL container?

C++Stl Container Data-Type

Throwing the fattest people off of an overloaded airplane.

C++Algorithm Sorting Stl

C++ Double Address Operator? (&&)

C++Stl Operator Keyword Memory Address

Concatenating two std::vectors

C++Vector Stl Concatenation Stdvector

How do I clear the std::queue efficiently?

C++Data Structures Stl Queue

When vectors are allocated, do they use memory on the heap or the stack?

C++Vector Stl Heap Memory Stack Memory

STL or Qt containers?

maximum value of int

C++C Stl Limits Numeric Limits

Why does std::list::reverse have O(n) complexity?

C++C++11 Stl Linked List

How do I reverse a C++ vector?

C++Vector Stl Std

Advantages of std::for_each over for loop

C++Stl Foreach Coding Style

Is the order of iterating through std::map known (and guaranteed by the standard)?

C++Dictionary Stl Standards

Why is a C++ Vector called a Vector?

What does iterator->second mean?

C++Stl Iterator

C++ valarray vs. vector

C++Stl Stdvector C++ Standard-Library Valarray

What are the complexity guarantees of the standard containers?

C++Stl Containers Big O

Appending a vector to a vector

How to get std::vector pointer to the raw data?

How to check if std::map contains a key without doing insert?

What is the difference between const_iterator and non-const iterator in the C++ STL?

C++Stl Iterator Constants

Is it more efficient to copy a vector by reserving and copying, or by creating and swapping?

C++Algorithm Vector Stl

Should I store entire objects, or pointers to objects in containers?

C++Stl Pointers

Using custom std::set comparator

Why doesn't std::queue::pop return value.?

How do I remove an item from a stl vector with a certain value?

How to set initial size of std::vector?

Parsing a comma-delimited std::string

C++String Parsing Stl Csv

Iterate keys in a C++ map

How do I specify a pointer to an overloaded function?

What is the easiest way to initialize a std::vector with hardcoded elements?

C++Vector Stl Initialization

What is the preferred/idiomatic way to insert into a map?

C++Stl Insert Stdmap Std Pair

How do I sort a vector of pairs based on the second element of the pair?

C++Stl Stdvector

what is the difference between const_iterator and iterator?

C++Stl Iterator Const Iterator

How do I erase an element from std::vector<> by index?

C++Stl Vector Erase

How do you copy the contents of an array to a std::vector in C++ without looping?

C++Stl Vector Copy

What happens if you call erase() on a map element while iterating from begin to end?

C++Stl Iterator

remove_if equivalent for std::map

Writing your own STL Container

C++Stl C++ Standard-Library

Modern way to filter STL container?

string c_str() vs. data()

How to remove all the occurrences of a char in c++ string

C++ map access discards qualifiers (const)

C++Stl Constants Maps

How can I create Min stl priority_queue?

C++Stl Priority Queue

Why isn't vector<bool> a STL container?

C++Vector Stl Containers Bitvector

How to overload std::swap()

C++Performance Optimization Stl C++ Faq

Const map element access

C++Dictionary Stl Constants

vector::at vs. vector::operator[]

C++Stl Stdvector

What's the difference between deque and list STL containers?

C++List Stl Deque

How to reuse an ostringstream?

C++Stl Reset Ostringstream

Where can I get a "useful" C++ binary search algorithm?

C++Algorithm Stl Binary Search

How do I safely pass objects, especially STL objects, to and from a DLL?

C++Windows Dll Stl Abi

How to find if a given key exists in a C++ std::map

C++Dictionary Stl

std::back_inserter for a std::set?

C++Algorithm Stl

Erasing elements from a vector

C++Vector Stl Erase

C++ convert vector<int> to vector<double>

C++Stl Vector Type Conversion

What exception classes are in the standard C++ library

C++Exception C++11 Stl

Why is it OK to return a 'vector' from a function?

C++Vector Stl Scope Standard Library

Recommended way to insert elements into map

Why is std::ssize() introduced in C++20?

C++Stl Unsigned Signed C++20

What's the difference between std::string and std::basic_string? And why are both needed?

Why does std::set not have a "contains" member function?

how to append a list<T> object to another

Initial capacity of vector in C++

C++Memory Management Stl Vector

use std::fill to populate vector with increasing numbers

Why does std::stack use std::deque by default?

C++Stl Containers

Which STL container should I use for a FIFO?

How can I create my own comparator for a map?

How to get a certain element in a list, given the position?

Initializing a static std::map<int, int> in C++

std::map insert or std::map find?

C++Optimization Stl Stdmap

Inspecting standard container (std::map) contents with gdb

How to update std::map after using the find method?

C++Map Stl Stdmap

Is gcc std::unordered_map implementation slow? If so - why?

C++Stl C++11 Hashmap Concurrenthashmap

Alternative to vector<bool>

C++Stl Vector Boolean

Why can't we declare a std::vector<AbstractClass>?

C++Stl Abstract Class

How to implode a vector of strings into a string (the elegant way)

C++String Stl Stdstring Implode

In std::multiset is there a function or algorithm to erase just one sample (unicate or duplicate) if an element is found

C++Stl Multiset

Iteration over std::vector: unsigned vs signed index variable

C++Stl Unsigned Signed

What's the difference between "STL" and "C++ Standard Library"?

C++Stl Std C++ Standard-Library C++ Faq

How to choose between map and unordered_map?

C++Dictionary Data Structures Stl Unordered Map

Copy map values to vector in STL

C++Stl Containers

how to provide a swap function for my class?

Why would I prefer using vector to deque

C++Stl Vector Deque

std::string comparison (check whether string begins with another string)

C++String Stl Compare

std::vector::resize() vs. std::vector::reserve()

Is there a production ready lock-free queue or hash implementation in C++

C++Stl Lock Free

Why do I need std::get_temporary_buffer?

C++Memory Management Stl Buffer Temporary

What is the point of STL Character Traits?

C++String Stl Stdstring Char Traits

char* vs std::string in c++

C++Stl Stdstring Arrays

What's the advantage of multimap over map of vectors?

C++Stl Map Multimap

Why is the C++ initializer_list behavior for std::vector and std::array different?

Can't include C++ headers like vector in Android NDK

Android Stl Vector Android Ndk

Merge multiple sets elements in a single set

Is it okay to inherit implementation from STL containers, rather than delegate?

What requirements must std::map key classes meet to be valid keys?

c++ exception : throwing std::string

C++Exception Stl

How can I use std::maps with user-defined types as key?

C++Dictionary Stl Containers Stdmap

How can I merge two STL maps?

C++Merge Stl Maps Stdmap

How to check that an element is in a std::set?

C++Stl Set Contains

Multidimensional std::array

How to use the priority queue STL for objects?

How to iterate through a list of objects in C++?

C++For Loop C++11 Stl Iterator

How to increment an iterator by 2?

C++Visual C++Stl Iterator

Why can't I make a vector of references?

C++Vector Reference Stl Container Data-Type

Why does the C++ STL not provide any "tree" containers?

C++Data Structures Tree Stl

Does the range-based 'for' loop deprecate many simple algorithms?

C++Algorithm Stl C++11 Foreach

C++11 std::set lambda comparison function

C++Stl C++11 Lambda Std Function

UTF8 to/from wide char conversion in STL

C++Unicode Stl Utf 8 Character Encoding

how-to initialize 'const std::vector<T>' like a c array

Performance of qsort vs std::sort?

C++Performance Sorting Stl

Copying std::vector: prefer assignment or std::copy?

vector or map, which one to use?

C++Performance Stl

How to sort an STL vector?

What is the difference between std::set and std::vector?

c++ STL set difference

C++Stl Set Stdset Set Difference

C++ std::set update is tedious: I can't change an element in place

Case insensitive std::string.find()

C++String Stl Case Insensitive Wstring

Initialize a vector array of strings

Embedded C++ : to use STL or not?

C++Stl Embedded

What C++ pitfalls should I avoid?

How to iterate over a priority_queue?

rationale for std::lower_bound and std::upper_bound?

C++Stl Lower Bound Upperbound

What happens if you increment an iterator that is equal to the end iterator of an STL container

C++Stl Vector Iterator

How to avoid memory leaks when using a vector of pointers to dynamically allocated objects in C++?

C++Stl Pointers Vector Derived

What is an iterator's default value?

C++Stl Default Containers Iterator

Converting ostream into standard string

C++Stl Iostream

Why is the code in most STL implementations so convoluted?

C++Stl Readability

Why is value taking setter member functions not recommended in Herb Sutter's CppCon 2014 talk (Back to Basics: Modern C++ Style)?

Looking for C++ STL-like vector class but using stack storage

C++Data Structures Stl Vector

Checking if an iterator is valid

C++Stl Iterator Dereference

C++11 std::to_string(double) - No trailing zeros

Convert a vector<T> to initializer_list<T>

C++C++11 Stl Initializer List

When does Endianness become a factor?

C++Networking Stl Endianness

What is the default hash function used in C++ std::unordered_map?

C++C++11 Hash Stl Unordered Map

What is the difference between cbegin and begin for vector?

C++Vector Stl Iterator

Google C++ style guide's No-exceptions rule; STL?

C++Exception Stl

Should I switch from using boost::shared_ptr to std::shared_ptr?

C++Boost Stl C++11 Shared Ptr

Why do I get the same sequence for every run with std::random_device with mingw gcc4.8.1?

C++C++11 Random Stl

How does C++ STL unordered_map resolve collisions?

C++Stl Unordered Map

What's the benefit of std::back_inserter over std::inserter?

C++Vector Stl Iterator Containers

How to change a particular element of a C++ STL vector

Constant-sized vector

Are lambdas inlined like functions in C++?

C++C++11 Lambda Stl

How can I get the penultimate element in a list?

How do I find the largest int in a std::set<int>?

C++ std::vector emplace vs insert

Sorting a vector in descending order

C++Sorting Stl Vector Iterator

Iterator to last element in std::list

Why should one not derive from c++ std string class?

C++String Inheritance Stl

How to get a random element from a C++ container?

C++Algorithm Stl

C++ inserting unique_ptr in map

C++Pointers Map Stl Unique Ptr

Best way to extract a subvector from a vector?

C++Stl Vector Range

Missing C++ header <__debug> after updating OSX Command Line Tools 6.3

C++Xcode Macos Stl Clang

I want to convert std::string into a const wchar_t *

C++Stl Wchar T Stdstring

Is there a sorted_vector class, which supports insert() etc.?

C++Stl Vector Sorting Set

Removing item from vector while iterating?

C++Stl Iterator

One liner to convert from list<T> to vector<T>

How can I use Standard Library (STL) classes in my dll interface or ABI?

C++Dll C++11 Stl Std

Template Specialization VS Function Overloading

C++Stl Template Specialization Standard Library Overloading

std::transform() and toupper(), no matching function

C++Algorithm Stl

std::string::c_str() and temporaries

C++Stl Stdstring

Is list::size() really O(n)?

C++List Stl Complexity Theory Big O

std::endl is of unknown type when overloading operator<<

C++Stl Operator Overloading

Delete all items from a c++ std::vector

Replace an element into a specific position of a vector

C++Visual C++Vector Stl Insert

Checking for existence in std::map - count vs find

C++Dictionary Stl Stdmap

Why there is no std::copy_if algorithm?

C++Algorithm Stl

Using C++ vector::insert() to add to end of vector

C++Stl Vector Iterator

Writing stringstream contents into ofstream

C++Stl Parameters Stringstream Ofstream

What's faster, iterating an STL vector with vector::iterator or with at()?

C++Performance Stl Vector Iterator

Converting between C++ std::vector and C array without copying

C++C Arrays Stl Stdvector

C++ priority_queue with lambda comparator error

C++Stl Lambda C++11 Priority Queue

Why do std::string operations perform poorly?

C++Python Performance node.js Stl

What's the most efficient way to erase duplicates and sort a vector?

C++Sorting Vector Stl Duplicates

Is hash_map part of the STL?

STL vector: Moving all elements of a vector

C++Stl Stdvector

std::map emplace without copying value

C++C++11 Dictionary Stl Emplace

How do I sort a std::vector by the values of a different std::vector?

C++Stl Boost Vector Sorting

Convert iterator to pointer?

C++Stl Pointers Vector Iterator

Can I use const in vectors to allow adding elements, but not modifications to the already added?

C++Stl Constants

Is there a nice way to assign std::minmax(a, b) to std::tie(a, b)?

C++Algorithm Reference Stl C++17

What do I get from front() of empty std container?

C++ STL map::erase a non-existing key

C++Stl Map Key Erase

Difference between erase and remove

Reading a password from std::cin

C++Stl Password Protection

What is the right approach when using STL container for median calculation?

C++Algorithm Stl Containers Median

How to search for an element in an stl list?

how portable is end iterator decrement?

C++Stl Iterator Portability

Why use functors over functions?

Why is "!=" used with iterators instead of "<"?

C++Stl Iterator Comparison Operators

How to pretty-print STL containers in GDB?

C++Linux Debugging Stl Gdb

Comparing STL strings that use different allocators

C++String Memory Management Stl

How to construct a std::string from a std::vector<string>?

C++Stl String Concatenation Stringstream Stdstring

how do you insert the value in a sorted vector?

C++Sorting Vector Stl Insertion Sort

What is the most efficient way to append one std::vector to the end of another?

C++Performance Stl Vector

Use of for_each on map elements

C++Algorithm Stl Stdmap Std Pair

Concise explanation of reference collapsing rules requested: (1) A& & -> A& , (2) A& && -> A& , (3) A&& & -> A& , and (4) A&& && -> A&&