Compaq C
Run-Time Library Reference Manual for OpenVMS Systems

Contents

Preface
Preface	Preface
Chapter 1
1	Introduction
1.1	Using the Compaq C Run-Time Library
1.2	RTL Linking Options on Alpha Systems (ALPHA ONLY)
1.2.1	Linking with the Shareable Image
1.2.2	Linking with the Object Libraries
1.2.3	Examples
1.3	RTL Linking Options on VAX Systems (VAX ONLY)
1.3.1	Linking with the Compaq C RTL
1.3.1.1	Linking with the Compaq C RTL Shareable Images
1.3.1.2	Linking with or Providing Your Own Shareable Images
1.3.1.3	Linking with the Compaq C RTL Object Libraries
1.3.1.4	Linking with the Compaq C RTL Object Libraries /NOSYSSHR
1.3.2	Resolving Link-Time Conflicts with Multiple C RTLs
1.3.2.1	Using VAXC$LCL.OPT
1.3.2.2	Using VAXC$EMPTY.EXE
1.3.2.3	Using DECC$EMPTY.EXE
1.3.3	Linking Examples for Compaq C or Compaq C++ Code Only
1.3.4	Linking Examples for VAX C and Compaq C Code Combined
1.3.5	Linking with the VAX C RTL /NOSYSSHR
1.4	Compaq C RTL Function Prototypes and Syntax
1.4.1	Function Prototypes
1.4.2	Syntax Conventions for Function Prototypes
1.4.3	UNIX Style File Specifications
1.5	Feature-Test Macros for Header-File Control
1.5.1	Standards Macros
1.5.2	Selecting a Standard
1.5.3	Interactions with the /STANDARD Qualifier
1.5.4	Multiple-Version-Support Macro
1.5.5	Compatibility Modes
1.5.6	Curses and Socket Compatibility Macros
1.6	Feature Logical Names
1.7	32-Bit User and Group Identifiers
1.8	Input and Output on OpenVMS Systems
1.8.1	RMS Record and File Formats
1.8.2	Access to RMS Files
1.8.2.1	Accessing RMS Files in Stream Mode
1.8.2.2	Accessing RMS Record Files in Record Mode
1.8.2.2.1	Accessing Variable-Length or VFC Record Files in Record Mode
1.8.2.2.2	Accessing Fixed-Length Record Files in Record Mode
1.8.2.3	Example---Difference Between Stream Mode and Record Mode
1.9	Specific Portability Concerns
1.9.1	Reentrancy
1.9.2	Multithread Restrictions
1.10	64-bit Pointer Support (ALPHA ONLY)
1.10.1	Using the Compaq C Run-Time Library
1.10.2	Obtaining 64-bit Pointers to Memory
1.10.3	Compaq C Header Files
1.10.4	Functions Affected
1.10.4.1	No Pointer-Size Impact
1.10.4.2	Functions Accepting Both Pointer Sizes
1.10.4.3	Functions with Two Implementations
1.10.4.4	Functions Restricted to 32-Bit Pointers
1.10.5	Reading Header Files
Chapter 2
2	Understanding Input and Output
2.1	Using RMS from RTL Routines
2.2	UNIX I/O and Standard I/O
2.3	Wide-Character Versus Byte I/O Functions
2.4	Conversion Specifications
2.4.1	Converting Input Information
2.4.2	Converting Output Information
2.5	Terminal I/O
2.6	Program Examples
Chapter 3
3	Character, String, and Argument-List Functions
3.1	Character-Classification Functions
3.2	Character-Conversion Functions
3.3	String and Argument-List Functions
3.4	Program Examples
Chapter 4
4	Error and Signal Handling
4.1	Error Handling
4.2	Signal Handling
4.2.1	OpenVMS Versus UNIX Terminology
4.2.2	UNIX Signals and the Compaq C RTL
4.2.3	Signal-Handling Concepts
4.2.4	Signal Actions
4.2.5	Signal Handling and OpenVMS Exception Handling
4.3	Program Example
Chapter 5
5	Subprocess Functions
5.1	Implementing Child Processes in Compaq C
5.2	The exec Functions
5.2.1	Exec Processing
5.2.2	Exec Error Conditions
5.3	Synchronizing Processes
5.4	Interprocess Communication
5.5	Program Examples