The GNU C library is compatible with the ANSI/ISO C standard. If you're using ` gcc -ansi ', the glibc includes which are specified in the standard follow the standard. The ANSI/ISO C standard defines what has to be in the include files - and also states that nothing else should be in the include files (btw. You can still enable additional. Summary of Library Facilities This appendix is a complete list of the facilities declared within the header files supplied with the GNU C library. Each entry also lists the standard or other source from which each facility is derived, and tells you where in the manual you can find more information about how to use it. The GNU C Library is an open source, free and powerful library software for any GNU/Linux distribution. It is also known as Glibc and required by any UNIX-like computer operating system. GNU C Library is in charge of defining the system calls, as well as various other basic functionality, such as malloc, open, exit, printf, etc.

1. Gnu C Library On Computer
2. How To Install Gnu C Library On Ubuntu

Gnu C Library On Computer

Node:BSD Terminal Modes, Next:Line Control, Previous:Terminal Modes, Up:Low-Level Terminal Interface

BSD Terminal Modes

The usual way to get and set terminal modes is with the functions described in Terminal Modes. However, on some systems you can use the BSD-derived functions in this section to do some of the same thing. On many systems, these functions do not exist. Even with the GNU C library, the functions simply fail with errno = ENOSYS with many kernels, including Linux.

The symbols used in this section are declared in sgtty.h.

struct sgttyb

Data Type

This structure is an input or output parameter list for gtty and stty. char sg_ispeed Line speed for input char sg_ospeed Line speed for output char sg_erase Erase character char sg_kill Kill character int sg_flags Various flags

int gtty (int filedes, struct sgttyb *attributes)

Function

This function gets the attributes of a terminal. gtty sets *attributes to describe the terminal attributes of the terminal which is open with file descriptor filedes.

int stty (int filedes, struct sgttyb * attributes)

Function

This function sets the attributes of a terminal. stty sets the terminal attributes of the terminal which is open with file descriptor filedes to those described by *filedes.

Table of Contents

How To Install Gnu C Library On Ubuntu

I. Introduction

1. Status

Implementation Status

C++ 1998/2003

Implementation Status

Implementation Specific Behavior

C++ 2011

Implementation Specific Behavior

C++ 2014

C++ 2017

Implementation Specific Behavior

C++ 202a

Implementation Specific Behavior

C++ TR1

Implementation Specific Behavior

C++ TR 24733

C++ IS 29124

Implementation Specific Behavior

License

The Code: GPL

The Documentation: GPL, FDL

Bugs

Implementation Bugs

Standard Bugs

2. Setup

Prerequisites

Configure

Make

3. Using

Command Options

Headers

Header Files

Mixing Headers

The C Headers and namespace std

Precompiled Headers

Macros

Dual ABI

Troubleshooting

Namespaces

Available Namespaces

namespace std

Using Namespace Composition

Linking

Almost Nothing

Finding Dynamic or Shared Libraries

Experimental Library Extensions

Concurrency

Prerequisites

Thread Safety

Atomics

IO

Structure

Defaults

Future

Alternatives

Containers

Exceptions

Exception Safety

Exception Neutrality

Doing without

Compatibility

With C

With POSIX thread cancellation

Debugging Support

Using g++

Debug Versions of Library Binary Files

Memory Leak Hunting

Non-memory leaks in Pool and MT allocators

Data Race Hunting

Using gdb

Tracking uncaught exceptions

Debug Mode

Compile Time Checking

Profile-based Performance Analysis

II. Standard Contents

4. Support

Types

Fundamental Types

Numeric Properties

NULL

Dynamic Memory

Termination

Termination Handlers

Verbose Terminate Handler

5. Diagnostics

Exceptions

API Reference

Adding Data to exception

Use of errno by the library

Concept Checking

6. Utilities

Functors

Pairs

Memory

Allocators

Requirements

Design Issues

Implementation

Interface Design

Selecting Default Allocation Policy

Disabling Memory Caching

Using a Specific Allocator

Custom Allocators

Extension Allocators

auto_ptr

Limitations

Use in Containers

shared_ptr

Requirements

Design Issues

Implementation

Class Hierarchy

Thread Safety

Selecting Lock Policy

Related functions and classes

Use

Examples

Unresolved Issues

Acknowledgments

Traits

7. Strings

String Classes

Simple Transformations

Case Sensitivity

Arbitrary Character Types

Tokenizing

Shrink to Fit

CString (MFC)

8. Localization

Locales

locale

Requirements

Design

Implementation

Interacting with 'C' locales

Future

Facets

ctype

Implementation

Specializations

Future

codecvt

Requirements

Design

wchar_t Size

Support for Unicode

Other Issues

Implementation

Use

Future

messages

Requirements

Design

Implementation

Models

The GNU Model

Use

Future

9. Containers

Sequences

list

list::size() is O(n)

Associative

Insertion Hints

bitset

Size Variable

Type String

Unordered Associative

Insertion Hints

Hash Code

Hash Code Caching Policy

Interacting with C

Containers vs. Arrays

10. Iterators

Predefined

Iterators vs. Pointers

One Past the End

11. Algorithms

Mutating

swap

Specializations

12. Numerics

Complex

complex Processing

Generalized Operations

Interacting with C

Numerics vs. Arrays

C99

13. Input and Output

Iostream Objects

Stream Buffers

Derived streambuf Classes

Buffering

Memory Based Streams

Compatibility With strstream

File Based Streams

Copying a File

Binary Input and Output

Interacting with C

Using FILE* and file descriptors

Performance

14. Atomics

API Reference

15. Concurrency

API Reference

III. Extensions

16. Compile Time Checks

17. Debug Mode

Intro

Semantics

Using

Using the Debug Mode

Using a Specific Debug Container

Design

Goals

Methods

The Wrapper Model

Safe Iterators

Safe Sequences (Containers)

Precondition Checking

Release- and debug-mode coexistence

Compile-time coexistence of release- and debug-mode components

Link- and run-time coexistence of release- and debug-mode components

Alternatives for Coexistence

Other Implementations

18. Parallel Mode

Intro

Semantics

Using

Prerequisite Compiler Flags

Using Parallel Mode

Using Specific Parallel Components

Design

Interface Basics

Configuration and Tuning

Setting up the OpenMP Environment

Compile Time Switches

Run Time Settings and Defaults

Implementation Namespaces

Testing

Bibliography

19. Profile Mode

Intro

Using the Profile Mode

Tuning the Profile Mode

Design

Wrapper Model

Instrumentation

Run Time Behavior

Analysis and Diagnostics

Cost Model

Reports

Testing

Extensions for Custom Containers

Empirical Cost Model

Implementation Issues

Stack Traces

Symbolization of Instruction Addresses

Concurrency

Using the Standard Library in the Instrumentation Implementation

Malloc Hooks

Construction and Destruction of Global Objects

Developer Information

Big Picture

How To Add A Diagnostic

Diagnostics

Diagnostic Template

Containers

Hashtable Too Small

Hashtable Too Large

Inefficient Hash

Vector Too Small

Vector Too Large

Vector to Hashtable

Hashtable to Vector

Vector to List

List to Vector

List to Forward List (Slist)

Ordered to Unordered Associative Container

Algorithms

Sort Algorithm Performance

Data Locality

Need Software Prefetch

Linked Structure Locality

Multithreaded Data Access

Data Dependence Violations at Container Level

False Sharing

Statistics

Bibliography

20. The mt_allocator

Intro

Design Issues

Overview

Implementation

Tunable Parameters

Initialization

Deallocation Notes

Single Thread Example

Multiple Thread Example

21. The bitmap_allocator

Design

Implementation

Free List Store

Super Block

Super Block Data Layout

Maximum Wasted Percentage

allocate

deallocate

Questions

1

2

3

Locality

Overhead and Grow Policy

22. Policy-Based Data Structures

Intro

Performance Issues

Associative

Priority Que

Goals

Associative

Policy Choices

Underlying Data Structures

Iterators

Functional

Priority Queues

Policy Choices

Underlying Data Structures

Binary Heaps

Using

Prerequisites

Organization

Tutorial

Basic Use

Configuring via Template Parameters

Querying Container Attributes

Point and Range Iteration

Examples

Intermediate Use

Querying with container_traits

By Container Method

Hash-Based

Branch-Based

Priority Queues

Design

Concepts

Null Policy Classes

Map and Set Semantics

Distinguishing Between Maps and Sets

Alternatives to std::multiset and std::multimap

Iterator Semantics

Point and Range Iterators

Distinguishing Point and Range Iterators

Invalidation Guarantees

Genericity

Tag

Traits

By Container

hash

Interface

Details

tree

Interface

Details

Trie

Interface

Details

List

Interface

Details

Priority Queue

Interface

Details

Testing

Regression

Performance

Hash-Based

Text find

Integer find

Integer Subscript find

Integer Subscript insert

Integer find with Skewed-Distribution

Erase Memory Use

Branch-Based

Text insert

Text find

Text find with Locality-of-Reference

split and join

Order-Statistics

Multimap

Text find with Small Secondary-to-Primary Key Ratios

Text find with Large Secondary-to-Primary Key Ratios

Text insert with Small Secondary-to-Primary Key Ratios

Text insert with Small Secondary-to-Primary Key Ratios

Text insert with Small Secondary-to-Primary Key Ratios Memory Use

Text insert with Small Secondary-to-Primary Key Ratios Memory Use

Priority Queue

Text push

Text push and pop

Integer push

Integer push

Text pop Memory Use

Text join

Text modify Up

Text modify Down

Observations

Associative

Priority_Queue

Acknowledgments

Bibliography

23. HP/SGI Extensions

Backwards Compatibility

Deprecated

24. Utilities

25. Algorithms

26. Numerics

27. Iterators

28. Input and Output

Derived filebufs

29. Demangling

30. Concurrency

Design

Interface to Locks and Mutexes

Interface to Atomic Functions

Implementation

Using Built-in Atomic Functions

Thread Abstraction

Use

IV. Appendices

A. Contributing

Contributor Checklist

Reading

Assignment

Getting Sources

Submitting Patches

Directory Layout and Source Conventions

Coding Style

Bad Identifiers

By Example

Design Notes

B. Porting and Maintenance

Configure and Build Hacking

Prerequisites

Overview

General Process

What Comes from Where

Configure

Storing Information in non-AC files (like configure.host)

Coding and Commenting Conventions

The acinclude.m4 layout

GLIBCXX_ENABLE, the --enable maker

Shared Library Versioning

Make

Writing and Generating Documentation

Introduction

Generating Documentation

Doxygen

Prerequisites

Generating the Doxygen Files

Debugging Generation

Markup

Docbook

Prerequisites

Generating the DocBook Files

Debugging Generation

Editing and Validation

File Organization and Basics

Markup By Example

Porting to New Hardware or Operating Systems

Operating System

CPU

Character Types

Thread Safety

Numeric Limits

Libtool

Testing

Test Organization

Directory Layout

Naming Conventions

Running the Testsuite

Basic

Variations

Permutations

Writing a new test case

Examples of Test Directives

Directives Specific to Libstdc++ Tests

Test Harness and Utilities

DejaGnu Harness Details

Utilities

Special Topics

Qualifying Exception Safety Guarantees

Overview

Existing tests

C++11 Requirements Test Sequence Descriptions

ABI Policy and Guidelines

The C++ Interface

Versioning

Goals

History

Prerequisites

Configuring

Checking Active

Allowed Changes

Prohibited Changes

Implementation

Testing

Single ABI Testing

Multiple ABI Testing

Outstanding Issues

API Evolution and Deprecation History

3.0

3.1

3.2

3.3

3.4

4.0

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

5

5.3

6

7

7.2

7.3

8

9

Backwards Compatibility

First

No ios_base

No cout in <ostream.h>, no cin in <istream.h>

Second

Namespace std:: not supported

Illegal iterator usage

isspace from <cctype> is a macro

No vector::at, deque::at, string::at

No std::char_traits<char>::eof

No string::clear

Removal of ostream::form and istream::scan extensions

No basic_stringbuf, basic_stringstream

Little or no wide character support

No templatized iostreams

Thread safety issues

Third

Pre-ISO headers removed

Extension headers hash_map, hash_set moved to ext or backwards

No ios::nocreate/ios::noreplace.

No stream::attach(int fd)

Support for C++98 dialect.

Support for C++TR1 dialect.

Support for C++11 dialect.

Container::iterator_type is not necessarily Container::value_type*

C. Free Software Needs Free Documentation

D. GNU General Public License version 3

E. GNU Free Documentation License