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Oracle Solaris Studio 12.2: C User's Guide
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Document Information


1.  Introduction to the C Compiler

2.  C-Compiler Implementation-Specific Information

3.  Parallelizing C Code

4.  lint Source Code Checker

5.  Type-Based Alias Analysis

6.  Transitioning to ISO C

6.1 Basic Modes

6.1.1 -Xc

6.1.2 -Xa

6.1.3 -Xt

6.1.4 -Xs

6.2 A Mixture of Old- and New-Style Functions

6.2.1 Writing New Code

6.2.2 Updating Existing Code

6.2.3 Mixing Considerations

6.3 Functions With Varying Arguments

6.4 Promotions: Unsigned Versus Value Preserving

6.4.1 Background

6.4.2 Compilation Behavior

6.4.3 First Example: The Use of a Cast

6.4.4 Bit-fields

6.4.5 Second Example: Same Result

6.4.6 Integral Constants

6.4.7 Third Example: Integral Constants

6.5 Tokenization and Preprocessing

6.5.1 ISO C Translation Phases

6.5.2 Old C Translation Phases

6.5.3 Logical Source Lines

6.5.4 Macro Replacement

6.5.5 Using Strings

6.5.6 Token Pasting

6.6 const and volatile

6.6.1 Types, Only for lvalue

6.6.2 Type Qualifiers in Derived Types

6.6.3 const Means readonly

6.6.4 Examples of const Usage

6.6.5 volatile Means Exact Semantics

6.6.6 Examples of volatile Usage

6.7 Multibyte Characters and Wide Characters

6.7.1 Asian Languages Require Multibyte Characters

6.7.2 Encoding Variations

6.7.3 Wide Characters

6.7.4 Conversion Functions

6.7.5 C Language Features

6.8 Standard Headers and Reserved Names

6.8.1 Standard Headers

6.8.2 Names Reserved for Implementation Use

6.8.3 Names Reserved for Expansion

6.8.4 Names Safe to Use

6.9 Internationalization

6.9.1 Locales

6.9.2 The setlocale() Function

6.9.3 Changed Functions

6.9.4 New Functions

6.10 Grouping and Evaluation in Expressions

6.10.1 Definitions

6.10.2 The K&R C Rearrangement License

6.10.3 The ISO C Rules

6.10.4 The Parentheses

6.10.5 The As If Rule

6.11 Incomplete Types

6.11.1 Types

6.11.2 Completing Incomplete Types

6.11.3 Declarations

6.11.4 Expressions

6.11.5 Justification

6.11.6 Examples

6.12 Compatible and Composite Types

6.12.1 Multiple Declarations

6.12.2 Separate Compilation Compatibility

6.12.3 Single Compilation Compatibility

6.12.4 Compatible Pointer Types

6.12.5 Compatible Array Types

6.12.6 Compatible Function Types

6.12.7 Special Cases

6.12.8 Composite Types

7.  Converting Applications for a 64-Bit Environment

8.  cscope: Interactively Examining a C Program

A.  Compiler Options Grouped by Functionality

B.  C Compiler Options Reference

C.  Implementation-Defined ISO/IEC C99 Behavior

D.  Supported Features of C99

E.  Implementation-Defined ISO/IEC C90 Behavior

F.  ISO C Data Representations

G.  Performance Tuning

H.  The Differences Between K&R Solaris Studio C and Solaris Studio ISO C


Chapter 6

Transitioning to ISO C

This chapter provides information which you can use to help you port applications for K&R style C to conform with 9899:1990 ISO/IEC C standard. The information is presented under the assumption that you are using -xc99=none because you do not want to conform with the newer, 9899:1999 ISO/IEC C standard. The C compiler defaults to -xc99=all which supports the 9899:1999 ISO/IEC C standard.