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Contents

Chapter 4 The C and C++ Libraries

4.1 About the runtime libraries ......................................................................... 4-2

4.2 Building an application with the C library .................................................... 4-6

4.3 Building an application without the C library ............................................. 4-13

4.4 Tailoring the C library to a new execution environment ............................ 4-20

4.5 Tailoring static data access ...................................................................... 4-25

4.6 Tailoring locale and CTYPE ..................................................................... 4-26

4.7 Tailoring error signaling, error handling, and program exit ....................... 4-51

4.8 Tailoring storage management ................................................................. 4-57

4.9 Tailoring the runtime memory model ........................................................ 4-67

4.10 Tailoring the input/output functions ........................................................... 4-75

4.11 Tailoring other C library functions ............................................................. 4-85

4.12 Selecting real-time division ....................................................................... 4-90

4.13 ISO implementation definition ................................................................... 4-91

4.14 C library extensions .................................................................................. 4-99

4.15 Library naming conventions .................................................................... 4-105

Chapter 5 Floating-point Support

5.1 About floating-point support ........................................................................ 5-2

5.2 The software floating-point library, fplib ...................................................... 5-3

5.3 Controlling the floating-point environment .................................................. 5-8

5.4 The math library, mathlib .......................................................................... 5-24

5.5 IEEE 754 arithmetic .................................................................................. 5-30

Appendix A Via File Syntax

A.1 Overview of via files .................................................................................... A-2

A.2 Syntax ......................................................................................................... A-3

Appendix B Standard C Implementation Definition

B.1 Implementation definition ............................................................................ B-2

Appendix C Standard C++ Implementation Definition

C.1 EC++ support ............................................................................................. C-2

C.2 Integral conversion ..................................................................................... C-3

C.3 Calling a pure virtual function ..................................................................... C-4

C.4 Minor features of language support ............................................................ C-5

C.5 Major features of language support ............................................................ C-7

C.6 Standard C++ library implementation definition .......................................... C-8

Appendix D C and C++ Compiler Implementation Limits

D.1 C++ ISO/IEC standard limits ...................................................................... D-2

D.2 Internal limits .............................................................................................. D-4

D.3 Limits for integral numbers ......................................................................... D-5

D.4 Limits for floating-point numbers ................................................................ D-6

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ARM VERSION 1.2 Datenblatt Seite 4