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Language Extensions Example class A { const int size = 10; // must be static const int size = 10; int a[size]; }; 3.5.6 Specialization of nonmember function templates As an extension, it is permitted to specify a storage class on a specialization of a nonmember function template. 3.5.7 Type conversions Type conversion between a pointer to an extern "C" function and a pointer to an extern "C++" function is permitted. Example extern "C" void f(); void (*pf)() = &f; // f’s type has extern "C" linkage // pf points to an extern "C++" function // error unless implicit conversion is allowed 3-18 Copyright © 2007-2010 ARM. All rights reserved. ARM DUI 0348C Non-Confidential, ID101213
Language Extensions 3.6 Standard C and standard C++ language extensions The compiler supports numerous extensions to both the ISO C99 and the ISO C++ Standards, such as various integral type extensions, various floating-point extensions, hexadecimal floating-point constants, and anonymous classes, structures, and unions. These extensions are available if: • the source language is C++ and you are compiling in non strict mode • the source language is C99 and you are compiling in non strict mode • the source language is C90 and you are compiling in non strict mode. These extensions are not available if: • the source language is C++ and the compiler is restricted to compiling strict C++ using the --strict compiler option. • the source language is C99 and the compiler is restricted to compiling strict Standard C using the --strict compiler option. • the source language is C90 and the compiler is restricted to compiling strict C90 using the --strict compiler option. 3.6.1 Address of a register variable The address of a variable with register storage class can be taken. Errors The compiler generates a warning if you take the address of a variable with register storage class. Example void foo(void) { register int i; int *j = &i; } 3.6.2 Arguments to functions Default arguments can be specified for function parameters other than those of a top-level function declaration. For example, they are accepted on typedef declarations and on pointer-to-function and pointer-to-member-function declarations. ARM DUI 0348C Copyright © 2007-2010 ARM. All rights reserved. 3-19 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 • a
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Compiler Command-line Options Synta
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Compiler Command-line Options See a
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Compiler Command-line Options Compi
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Compiler Command-line Options Selec
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Compiler Command-line Options • R
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Compiler Command-line Options Usage
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Compiler Command-line Options A num
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Compiler Command-line Options vfpv3
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Compiler Command-line Options Restr
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Page 125 and 126: Compiler Command-line Options Usage
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Page 191 and 192: Chapter 4 Compiler-specific Feature
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Page 197 and 198: Compiler-specific Features Example
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Compiler-specific Features 4.3.11 _
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Compiler-specific Features See also
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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 In parti
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Compiler-specific Features 4.5.5 __
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Compiler-specific Features Note You
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Compiler-specific Features Default
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Compiler-specific Features • Chap
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Compiler-specific Features Where: t
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Compiler-specific Features This pra
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Compiler-specific Features • __at
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Compiler-specific Features Example
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Compiler-specific Features Note Bot
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Compiler-specific Features 4.7 Inst
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Compiler-specific Features opcode2
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Compiler-specific Features Example
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Compiler-specific Features Syntax v
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Compiler-specific Features Where: p
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Compiler-specific Features Errors T
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Compiler-specific Features Syntax v
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Compiler-specific Features Restrict
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Compiler-specific Features Errors T
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Compiler-specific Features ptr poin
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Compiler-specific Features 4.7.44 A
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Compiler-specific Features Table 4-
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Compiler-specific Features 4.7.47 A
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Compiler-specific Features • __uh
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Compiler-specific Features • Para
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Compiler-specific Features • Para
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Compiler-specific Features } int32_
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Compiler-specific Features 4.8 VFP
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Compiler-specific Features 4.10 GNU
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Compiler-specific Features __builti
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Chapter 5 C and C++ Implementation
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C and C++ Implementation Details th
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C and C++ Implementation Details Se
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C and C++ Implementation Details Po
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C and C++ Implementation Details
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C and C++ Implementation Details st
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C and C++ Implementation Details 5.
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C and C++ Implementation Details No
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C and C++ Implementation Details na
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C and C++ Implementation Details 5.
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Appendix A Via File Syntax This app
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Via File Syntax A.2 Syntax Via file
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Appendix B Standard C Implementatio
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Standard C Implementation Definitio
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Appendix C Standard C++ Implementat
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Standard C++ Implementation Definit
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Standard C++ Implementation Definit
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Appendix D C and C++ Compiler Imple
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C and C++ Compiler Implementation L
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C and C++ Compiler Implementation L
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Appendix E Using NEON Support This
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Using NEON Support E.2 Vector data
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Using NEON Support • Vector long
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Using NEON Support uint64x1_t vqadd
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Using NEON Support Vector multiply
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Using NEON Support int64x1_t vqsub_
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Using NEON Support uint32x2_t vcle_
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Using NEON Support uint16x4_t vabd_
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Using NEON Support Long pairwise ad
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Using NEON Support int16x8_t vqshlq
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Using NEON Support uint8x8_t vrshr_
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Using NEON Support Vector signed->u
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Using NEON Support uint8x16_t vld1q
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Using NEON Support int16x4_t lane);
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Using NEON Support // VST1.8 {d0},
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Using NEON Support uint64x1x2_t vld
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Using NEON Support float32x2x4_t vl
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Using NEON Support lane); // VLD2.8
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Using NEON Support // VLD4.16 {d0[0
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Using NEON Support // VST3.32 {d0,
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Using NEON Support // VST3.32 {d0[0
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Using NEON Support uint8x8_t vset_l
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Using NEON Support float32x2_t vmov
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Using NEON Support uint32x2_t vcvt_
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Using NEON Support // VMLA.I16 d0,
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Using NEON Support Vector long mult
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Using NEON Support Vector widening
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Using NEON Support int8x16_t vqabsq
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Using NEON Support Bitwise and int8
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Using NEON Support Bitwise Select N
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Using NEON Support E.3.31 Vector re
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