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C and C++ Compiler Implementation Limits Table D-4 describes other characteristics of floating-point numbers. These constants are also defined in the float.h include file. Table D-4 Other floating-point characteristics Constant Meaning Value FLT_RADIX Base (radix) of the ARM floating-point number representation 2 FLT_ROUNDS Rounding mode for floating-point numbers (nearest) 1 FLT_DIG Decimal digits of precision for float 6 DBL_DIG Decimal digits of precision for double 15 LDBL_DIG Decimal digits of precision for long double 15 FLT_MANT_DIG Binary digits of precision for type float 24 DBL_MANT_DIG Binary digits of precision for type double 53 LDBL_MANT_DIG Binary digits of precision for type long double 53 FLT_EPSILON Smallest positive value of x that 1.0 + x != 1.0 for type float 1.19209290e–7F DBL_EPSILON Smallest positive value of x that 1.0 + x != 1.0 for type double 2.2204460492503131e–16 LDBL_EPSILON Smallest positive value of x that 1.0 + x != 1.0 for type long double 2.2204460492503131e–16L Note • When a floating-point number is converted to a shorter floating-point number, it is rounded to the nearest representable number. • Floating-point arithmetic conforms to IEEE 754. D-6 Copyright © 2007-2010 ARM. All rights reserved. ARM DUI 0348C Non-Confidential, ID101213
Appendix E Using NEON Support This appendix describes NEON intrinsics support in this release of the RealView Compilation Tools (RVCT). This appendix contains the following sections: • Introduction on page E-2 • Vector data types on page E-3 • Intrinsics on page E-4. ARM DUI 0348C Copyright © 2007-2010 ARM. All rights reserved. E-1 ID101213 Non-Confidential,
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® RealView Compilation Tools Versi
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Product Status The information in t
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Contents RealView Compilation Tools
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Preface This preface introduces the
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Preface Appendix A Via File Syntax
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Preface Other publications The foll
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Chapter 1 Introduction This chapter
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Introduction 1.2 Source language mo
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Introduction 1.3 Language extension
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Introduction • Compiling a C sour
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Chapter 2 Compiler Command-line Opt
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Compiler Command-line Options 2.1.2
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Compiler Command-line Options Each
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Compiler Command-line Options Note
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Compiler Command-line Options • -
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Compiler Command-line Options Restr
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Compiler Command-line Options Defau
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Compiler Command-line Options Examp
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Compiler Command-line Options Synta
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Compiler Command-line Options Usage
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Compiler Command-line Options A num
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Chapter 3 Language Extensions This
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Language Extensions 3.1.2 #include_
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Language Extensions 3.3 C99 languag
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Language Extensions 3.5 Standard C+
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Language Extensions Example 3-2 Lin
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Language Extensions • You can use
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Language Extensions Errors The comp
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Chapter 4 Compiler-specific Feature
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Compiler-specific Features Usage __
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Compiler-specific Features Example
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Compiler-specific Features Examples
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Compiler-specific Features 4.3 Func
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Compiler-specific Features 4.3.2 __
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Compiler-specific Features 4.3.11 _
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Compiler-specific Features 4.4 Type
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Compiler-specific Features • Bit-
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Compiler-specific Features 4.5 Vari
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Compiler-specific Features 4.5.5 __
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Using NEON Support E.3.31 Vector re
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