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Libraries and Floating Point Support Guide
Conventions and feedback
The ARM C and C++ libraries
Mandatory linkage with the C library
C and C++ runtime libraries
C and C++ library features
Library heap usage requirements of the ARM C and C
Compliance with the Application Binary Interface (
Increasing portability of object files to other CL
ARM C and C++ library directory structure
Selection of ARM C and C++ library variants based
Thumb C libraries
C++ and C libraries and the std namespace
ARM C libraries and multithreading
ARM C libraries and reentrant functions
ARM C libraries and thread-safe functions
Use of static data in the C libraries
Use of the __user_libspace static data area by the
C library functions to access subsections of the _
Re-implementation of legacy function __user_libspa
Management of locks in multithreaded applications
How to ensure re-implemented mutex functions are c
Using the ARM C library in a multithreaded environ
Thread safety in the ARM C library
Thread safety in the ARM C++ library
The floating-point status word in a multithreaded
Using the C library with an application
Using the C and C++ libraries with an application
Using $Sub$$ to mix semihosted and nonsemihosted I
Using the libraries in a nonsemihosting environmen
C++ exceptions in a non-semihosting environment
Direct semihosting C library function dependencies
Indirect semihosting C library function dependenci
C library API definitions for targeting a differen
Building an application without the C library
Creating an application as bare machine C without
Integer and floating-point compiler functions and
Bare machine integer C
Bare machine C with floating-point processing
Customized C library startup code and access to C
Program design when exploiting the C library
Using low-level functions when exploiting the C li
Using high-level functions when exploiting the C l
Using malloc() when exploiting the C library
Tailoring the C library to a new execution environ
How C and C++ programs use the library functions
Initialization of the execution environment and ex
C++ initialization, construction and destruction
Legacy support for C$$pi_ctorvec instead of .init_
Exceptions system initialization
Emergency buffer memory for exceptions
Library functions called from main()
Program exit and the assert macro
Assembler macros that tailor locale functions in t
Link time selection of the locale subsystem in the
ISO8859-1 implementation
Shift-JIS and UTF-8 implementation
Runtime selection of the locale subsystem in the C
Definition of locale data blocks in the C library
LC_CTYPE data block
LC_COLLATE data block
LC_MONETARY data block
LC_NUMERIC data block
LC_TIME data block
Modification of C library functions for error sign
Modification of memory management functions in the
Avoiding the heap and heap-using library functions
C library support for memory allocation functions
Heap1, standard heap implementation
Heap2, alternative heap implementation
Using a heap implementation from bare machine C
Stack pointer initialization and heap bounds
Defining __initial_sp, __heap_base and __heap_limi
Extending heap size at runtime
Legacy support for __user_initial_stackheap()
Tailoring input/output functions in the C and C++
Target dependencies on low-level functions in the
The C library printf family of functions
The C library scanf family of functions
Redefining low-level library functions to enable d
The C library functions fread(), fgets() and gets(
Re-implementing __backspace() in the C library
Re-implementing __backspacewc() in the C library
Redefining target-dependent system I/O functions i
Tailoring non-input/output C library functions
Real-time integer division in the ARM libraries
Selecting real-time division in the ARM libraries
How the ARM C library fulfills ISO C specification
mathlib error handling
ISO-compliant implementation of signals supported
ISO-compliant C library input/output characteristi
Standard C++ library implementation definition
C library functions and extensions
Persistence of C and C++ library names across rele
Link time selection of C and C++ libraries
Managing projects that have explicit C or C++ libr
Compiler generated and library-resident helper fun
C and C++ library naming conventions
Using macro__ARM_WCHAR_NO_IO to disable FILE decla
The ARM C micro-library
Floating-point support
Libraries and Floating Point Support Guide
Runtime selection of the locale subsystem in the C library
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| Home > The ARM C and C++ libraries > Runtime selection of the locale subsystem in the C library | |||
The C library function setlocale() selects
a locale at runtime for the locale category, or categories, specified
in its arguments. It does this by selecting the requested locale
separately in each locale category. In effect, each locale category
is a small filing system containing an entry for each locale.
C header files describing what must be implemented, and providing
some useful support macros, are given in rt_locale.h and rt_locale.s.
See also- Concepts
- Reference
ARM C and C++ Libraries and Floating-Point Support Reference:
| Copyright © 2007-2008, 2011-2012 ARM. All rights reserved. | ARM DUI 0378D |
| Non-Confidential | ID062912 |
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| Home > The ARM C and C++ libraries > Runtime selection of the locale subsystem in the C library |
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