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COMPAQ SOFTWARE
Compaq C

Compaq C
User's Guide for OpenVMS Systems


Previous Contents Index

Appendix D
Appendix D Compaq C Compiler Messages
Appendix E
Appendix E Compaq C Limits
     E.1     Contents of <float.h>
     E.2     Contents of <limits.h>
Glossary
Glossary Glossary
Index
Index
Examples
1-1 Echo Program Using Command-Line Arguments
1-2 Watch Out for Pointers to Pointers (**)
1-3 Trivial 64-Bit Exploitation
1-4 Preceding Example No Longer Trivial
2-1 External Data Declarations and Definitions
2-2 Main Program Section
2-3 Function Initializing RMS Data Structures
2-4 Internal Functions
2-5 Utility Function: Adding Records
2-6 Utility Function: Deleting Records
2-7 Utility Function: Typing the File
2-8 Utility Function: Printing the File
2-9 Utility Function: Updating the File
3-1 Passing Floating-Point Arguments by Immediate Value
3-2 Passing Arguments by Reference
3-3 Passing Arguments by Descriptor
3-4 Passing Compile-Time String Descriptors
3-5 Compaq C Function Calling a Compaq FORTRAN Subprogram
3-6 Compaq FORTRAN Subprogram Calling a Compaq C Function
3-7 Compaq C Function Emulating a Compaq FORTRAN CHARACTER*(*) Function
3-8 VAX MACRO Program Calling a Compaq C Function
3-9 Compaq C Program Calling a VAX MACRO Program
3-10 Compaq C Function Calling a Compaq BASIC Function
3-11 Compaq BASIC Program Calling a Compaq C Function
3-12 Compaq C Function Calling a Compaq Pascal Routine
3-13 Compaq Pascal Program Calling a Compaq C Function
3-14 Sharing Data with a FORTRAN Program in Named Program Sections
3-15 Sharing Data with a FORTRAN Program in a Compaq C Structure
3-16 Sharing Data with a PL/I Program in Named Program Sections
3-17 Sharing Data with a PL/I Program in a Compaq C Structure
3-18 Sharing Data with a MACRO Program in a Compaq C Structure
3-19 Checking System Service Return Values
3-20 Using Variable-Length Argument Lists
3-21 Testing for Success
3-22 Testing for Specific Return Status Values
3-23 Passing Arguments to System Services
3-24 Determining$QIO Completion
3-25 Using Time Routines
4-1 Using Global Variables
4-2 Using the globalvalue Specifier
5-1 #pragma extern_model Example
C-1 Debugging Sample Program SCALARS.C
C-2 Debugging Sample Program ARRAY.C
C-3 Debugging Sample Program STRING.C
C-4 Debugging Sample Program STRUCT.C
C-5 Debugging Sample Program ARSTRUCT.C
C-6 Debugging Sample Program POWER.C
C-7 A Sample Debugging Session
Figures
1-1 DCL Commands for Developing Programs
3-1 The Call Stack
3-2 Structure of an OpenVMS VAX Argument List
3-3 Example of an OpenVMS VAX Argument List
3-4 Passing Arguments by Immediate Value
3-5 Bit Fields Within a Return Status Value
3-6 Internal Representation of a Status Value
4-1 OpenVMS VAX Structure Alignment
4-2 OpenVMS Bit-Field Alignment
Tables
1 Conventions Used in this Guide
1-1 /ACCEPT Qualifier Options
1-2 /ANNOTATIONS Qualifier Options
1-3 /ARCHITECTURE Qualifier Options
1-4 /ASSUME Qualifier Options
1-5 /CHECK =POINTER_SIZE Qualifier Options
1-6 /COMMENTS Qualifier Options
1-7 Debugger Compilation Options
1-8 /EXTERN_MODEL Qualifier Options
1-9 /FLOAT Qualifier Options
1-10 /IEEE_MODE Options
1-11 /MACHINE_CODE Qualifier Options (VAX ONLY)
1-12 /MMS_DEPENDENCIES Qualifier Options
1-13 /NAMES Qualifier Option1 Values
1-14 /NAMES Qualifier Option2 Values
1-15 /NESTED_INCLUDE_DIRECTORY Qualifier Options
1-16 /OPTIMIZE Qualifier Options
1-17 /PDSC_MASK Qualifier Options
1-18 /POINTER_SIZE Qualifier Options
1-19 /PRECISION Qualifier Options
1-20 /PREFIX_LIBRARY_ENTRIES Qualifier Options
1-21 /PROTOTYPE Qualifier Options
1-22 /REENTRANCY Qualifier Options
1-23 /SHOW Qualifier Options
1-24 /STANDARD Qualifier Options
1-25 /WARNINGS Qualifier Options
1-26 OpenVMS Linker Default File Types for Input Files
2-1 Common RMS Run-Time Processing Functions
2-2 Compaq C RMS Header Files
2-3 RMS Data Structures
3-1 VAX Register Usage
3-2 Alpha Register Usage
3-3 Status Values of SYS$SETEF
3-4 Status Values of SYS$READEF
3-5 Valid Class Codes
3-6 Atomic Data Types
3-7 Status Values of SYS$SETPRN
3-8 Valid Parameter-Passing Mechanisms in Compaq C
3-9 Default Passing Mechanisms
3-10 OpenVMS Run-Time Library Facilities
3-11 OpenVMS System Services
3-12 Compaq C Implementation
3-13 Possible Severity Values
3-14 Facility Codes
4-1 Location, Lifetime, and the Storage-Class Keywords
4-2 Floating-Point Formats
4-3 Program-Section Attributes
4-4 External Models and Definitions
4-5 Combinations of Storage-Class Specifiers and Modifiers (ALPHA ONLY)
4-6 Combinations of Storage-Class Specifiers and Modifiers (VAX ONLY)
4-7 Combination Attributes
5-1 Comparison of Mixing Different extern_models
6-1 Predefined System Identification Macros
6-2 :_ ,_ DECC_VER Version-Type Encodings
6-3 Standards Macros---All platforms
A-1 Trigraphs
A-2 Non-ANSI Keywords
A-3 New and Traditional Spellings of Macros
C-1 Commands to Manipulate Tokens and Placeholders
C-2 Mapping Between CDD/Repository and Compaq C Data Types


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