Index

Symbols

#ifdef, Conditional Compilation
#pragma HP_ALIGN NATURAL, Bit-Fields
$ALIAS directive, Passing Parameters Between HP C and HP FORTRAN 77
+df compiler option, Maintaining Profile Data Files
+e compiler option, HP C Extensions to ANSI C (+e)
+ESfic, Supporting Optimization Options
+ESlit, Supporting Optimization Options
+I, Supporting Optimization Options
+Oaggressive, Changing the Aggressiveness of Optimizations
+Oconservative, Changing the Aggressiveness of Optimizations
+Oinline_budget option, +Oinline_budget[=n]
+P, Supporting Optimization Options
+pgm compiler option, Maintaining Instrumented and Optimized Program Files
+r compiler options, Passing Parameters Between HP C and HP Pascal
+u compiler option of C/iX, Accessing Non-Natively Aligned Data with Pointers
+ubytes compiler option, Accessing Non-Natively Aligned Data with Pointers
+w1 compiler option, Data Alignment
-Aa compiler option, Guidelines for Portability, ANSI Mode Compile Option (-Aa)
-s option to lint, Checking for Alignment Problems with lint

A

accessing unaligned data, Accessing Unaligned Data

address 0, reading and writing, Dereferencing Null Pointers

aggregates, Comparing HP C and HP Pascal

aliasing options

optimization, Aliasing Options

Alignment

structures, Aligning Structures Between Architectures

alignment, Data Storage and Alignment

bit-field, Alignment of Bit-Fields
bus errors, Data Alignment
categories, Data Type Size and Alignments
DOMAIN_NATURAL, Data Type Size and Alignments, The HP_ALIGN Pragma
DOMAIN_WORD, Data Type Size and Alignments, The HP_ALIGN Pragma
HP 3000 Series 900, HP C/HP-UX 9000 Workstations and Servers and HP C/iX
HP 9000 workstations and servers, HP C/HP-UX 9000 Workstations and Servers and HP C/iX
HPUX_NATURAL, Data Type Size and Alignments, The HP_ALIGN Pragma
HPUX_NATURAL_S500, The HP_ALIGN Pragma
HPUX_WORD, Data Type Size and Alignments, The HP_ALIGN Pragma
NATURAL, Data Type Size and Alignments, The HP_ALIGN Pragma
NOPADDING, The HP_ALIGN Pragma
porting between HP architectures, Aligning Structures Between Architectures
scalar, Alignment of Scalar Types
typedef, Alignment of Typedefs

alignment, checking with lint, Checking for Alignment Problems with lint

ALLOCS_NEW_MEMORY pragma, Alias Pragmas, ALLOCS_NEW_MEMORY pragma

allow_unaligned_data_access(), Accessing Unaligned Data

ANSI C

function prototypes, ANSI Mode Function Prototypes, Mixing Old-Style Function Definitions with ANSI Function Declarations
silent changes, Silent Changes for ANSI C

ANSI mode, ANSI Mode Compile Option (-Aa)

apex command, Checking for Standards Compliance

application migration, Migrating an Application

arrays

HP C and FORTRAN 77, Notes on HP C and HP FORTRAN 77
HP C and Pascal, Notes on HP C and HP Pascal
size and alignment, Alignment of Arrays

asm keyword, Unsupported Keywords

auto variables in C, Variable Initialization

B

BFMT COFF predefined macro, Porting between HP C and Domain/C

bit-fields, Notes on HP C and HP Pascal

alignment, Alignment of Bit-Fields
declared without signed keyword, Silent Changes for ANSI C
declared without unsigned keyword, Silent Changes for ANSI C
HP 9000 workstations and servers HP C, Bit-Fields
Series 300/400 HP C, Bit-Fields
VAX/VMS C, VAX/VMS C, Bit-Fields

bit-fields in C, Bit-Fields, Core Language Features

bit-fields, checking alignment, Checking for Alignment Problems with lint

block scope, Silent Changes for ANSI C

boolean variables, Notes on HP C and HP Pascal

branch optimization, Branch Optimization

bus error, Accessing Non-Natively Aligned Data with Pointers

bus error handling in C, Accessing Unaligned Data

byte order, Byte Order

C

C

+O2 option, Core Language Features
-z option, Dereferencing Null Pointers
bit-fields, Bit-Fields, Core Language Features
calls to FORTRAN, Calling FORTRAN
calls to Pascal, Calling Pascal
casting pointer types, Casting Pointer Types
char data type, The char Data Type
data alignment, Casting Pointer Types
data types, comparison to Pascal and FORTRAN, Calling Other Languages
division by zero, Floating-Point Exceptions
enum bit-fields, Bit-Fields
expression evaluation, Expression Evaluation
identifiers, Identifiers
include files, Isolating System-Dependent Code with include Files
input/output routines, Input/Output
int data type, Conversions between unsigned char or unsigned short and int
integer overflow, Integer Overflow
null pointers, Dereferencing Null Pointers
porting to Domain/C, Porting between HP C and Domain/C
porting to/from VMS, Porting between HP C and VMS C
predefined symbols, Conditional Compilation, Predefined Symbols
preprocessor (cpp), Conditional Compilation
register storage class, Register Storage Class, Core Language Features
sizeof operator, The sizeof Operator
structure assignment, Structure Assignment
structure-valued functions, Structure-Valued Functions
temporary files, Temporary Files ($TMPDIR)
TMPDIR variable, Temporary Files ($TMPDIR)
typedef keyword, Type Incompatibilities and typedef
unsigned char converted to int, Conversions between unsigned char or unsigned short and int
unsigned char data type, The char Data Type
unsigned short converted to int, Conversions between unsigned char or unsigned short and int
variable initialization, Variable Initialization

calling other languages, Comparing HP C and HP Pascal

casting, Data Alignment

casting pointer types in C, Casting Pointer Types

cb, HP Specific Features of lex and yacc

CCS/C storage and alignment, CCS/C on the HP 1000 and HP 3000

cflow, HP Specific Features of lex and yacc

char data type in C, The char Data Type, Core Language Features

character constants in VMS C, Core Language Features

comparing storage and alignment, Examples of Structure Alignment on Different Systems

compiler options

+df, Maintaining Profile Data Files
+e, HP C Extensions to ANSI C (+e)
+pgm, Maintaining Instrumented and Optimized Program Files
+r, Passing Parameters Between HP C and HP Pascal
+ubytes, Accessing Non-Natively Aligned Data with Pointers
+w1, Data Alignment
-Aa, Guidelines for Portability, ANSI Mode Compile Option (-Aa)
+Opipeline, Prerequisites of Pipelining

conditional branches, Branch Optimization

conditional compilation in C, Conditional Compilation

const keyword, const and volatile Qualifiers, Mixing of const and volatile Qualifiers and Function Prototypes

corresponding types, Comparing Structured Data Type Declarations

cpp, HP Specific Features of lex and yacc

cpp preprocessor, Conditional Compilation

ctags, HP Specific Features of lex and yacc

curses(3X), Compiler Environment

cxref, HP Specific Features of lex and yacc

files

passing files between C and FORTRAN, Mixing C and FORTRAN File I/O

FLOAT_TRAPS_ON pragma, FLOAT_TRAPS_ON pragma

floating-point

conversion from float to int, Overflow During Conversion from Floating Point to Integral Type
types for C, Core Language Features
VMS formats in memory, Core Language Features

floating-point exceptions, Floating-Point Exceptions, Overflow During Conversion from Floating Point to Integral Type

floating-point expressions with float parameters, Silent Changes for ANSI C

floating-point instructions, Instruction Scheduler

floating-point representation, Floating-Point Format

flow.data file, Maintaining Profile Data Files

FMA, +O[no]fltacc

FMPYFADD, +O[no]fltacc

FMPYNFADD, +O[no]fltacc

FORTRAN

calling from C, Calling FORTRAN

FORTRAN 77, Comparing HP C and HP Pascal

$ALIAS directive, Passing Parameters Between HP C and HP FORTRAN 77
compared with HP C, Comparing HP C and HP FORTRAN 77, Notes on HP C and HP FORTRAN 77
file I/O, Mixing C and FORTRAN File I/O
linking, Linking HP FORTRAN 77 Routines on HP-UX
passing parameters with HP C, Passing Parameters Between HP C and HP FORTRAN 77
READ statement, Mixing C and FORTRAN File I/O

fortran keyword, Unsupported Keywords

function declaration, Notes on HP C and HP Pascal

function prototypes, ANSI Mode Function Prototypes, Mixing Old-Style Function Definitions with ANSI Function Declarations

functions, invoking, Comparing HP C and HP Pascal

fused multiply-add, +O[no]fltacc

fusing, +O[no]fltacc

fwrite(3) library call, Input/Output

G

G_floating VMS format, Core Language Features
global data, Passing Parameters Between HP C and HP Pascal
globaldef, Core Language Features
globalref, Core Language Features
globalvalue, Core Language Features
goto statement, Branch Optimization

H

help, online, HP C Online Help

hexadecimal escape sequence, Hexadecimal Escape Sequence

HP 3000 CCS/C storage, CCS/C on the HP 1000 and HP 3000

HP 3000 Series 900 alignment, HP C/HP-UX 9000 Workstations and Servers and HP C/iX

HP 9000 workstation and server alignment, HP C/HP-UX 9000 Workstations and Servers and HP C/iX

HP Pascal, Passing Parameters Between HP C and HP Pascal

HP-UX

linking Pascal routines, Linking HP Pascal Routines on HP-UX

HP-UX workstation and server padding, HP C/HP-UX 9000 Workstations and Servers and HP C/iX

hp9000s200 macro, Predefined Macro Names

hp9000s300 macro, Predefined Macro Names

hp9000s300 symbol, Conditional Compilation, Predefined Symbols, Preprocessor Features

hp9000s500 macro, Predefined Macro Names

hp9000s700 symbol, Conditional Compilation, Predefined Symbols, Preprocessor Features

hp9000s800 macro, Predefined Macro Names

hp9000s800 symbol, Conditional Compilation, Predefined Symbols, Preprocessor Features

HP_ALIGN pragma, The HP_ALIGN Pragma, Using the HP_ALIGN Pragma, Accessing Non-Natively Aligned Data with Pointers, Aligning Structures Between Architectures

hppa symbol, Predefined Symbols, Preprocessor Features

hpux macro, Predefined Macro Names

hpux symbol, Predefined Symbols, Preprocessor Features

HPUX_NATURAL alignment, Data Type Size and Alignments, The HP_ALIGN Pragma

HPUX_NATURAL_S500 alignment, The HP_ALIGN Pragma

HPUX_WORD alignment, Data Type Size and Alignments, The HP_ALIGN Pragma

I

identifiers in C, Identifiers, Core Language Features
include files, Migrating an Application
include files and portability, Isolating System-Dependent Code with include Files
inconsistent parameter list declaration, Mixing Old-Style Function Definitions with ANSI Function Declarations
indexing arrays, Notes on HP C and HP Pascal
INLINE pragma, Inlining Pragmas
input/output in C, Input/Output
instruction scheduler, Instruction Scheduler
integer constants, unsuffixed, Silent Changes for ANSI C
integer overflow in C, Integer Overflow
internal padding of structures, Checking for Alignment Problems with lint

K

keywords

asm, Unsupported Keywords
const, const and volatile Qualifiers, Mixing of const and volatile Qualifiers and Function Prototypes
entry, Unsupported Keywords
fortran, Unsupported Keywords
volatile, const and volatile Qualifiers, Mixing of const and volatile Qualifiers and Function Prototypes

L

languages, calling other, Comparing HP C and HP Pascal

leading underscore in identifier, Leading Underscore

level 1 optimization, Level 1 Optimization Modules

level 2 optimization, Level 2 Optimization Modules

level 3 optimization, Level 3 Optimizations

level 4 optimization, Level 4 Optimizations

lex, HP Specific Features of lex and yacc

library functions, Library Functions

linking

HP FORTRAN 77 on HP-UX, Linking HP FORTRAN 77 Routines on HP-UX
HP Pascal on HP-UX, Linking HP Pascal Routines on HP-UX

lint, Parameter Lists, HP Specific Features of lex and yacc

lint C program checker, Guidelines for Portability, Migrating an Application

lint, checking alignment with, Checking for Alignment Problems with lint

lint, checking for standards compliance, Checking for Standards Compliance

loop optimization, Register Reassociation

M

macros

hp9000s200, Predefined Macro Names
hp9000s300, Predefined Macro Names
hp9000s500, Predefined Macro Names
hp9000s800, Predefined Macro Names
hpux, Predefined Macro Names
PWB, Predefined Macro Names
unix, Predefined Macro Names
white space, White Space

makefiles, Migrating an Application

migrating to HP C, Migrating an Application

N

NATURAL alignment, Data Type Size and Alignments, The HP_ALIGN Pragma
PTRS_STRONGLY_TYPED pragma, [NO]PTRS_STRONGLY_TYPED Pragma
+Odataprefetch option, +O[no]dataprefetch, +O[no]entrysched, +O[no]fail_safe, +O[no]fastaccess, +O[no]fltacc, +O[no]global_ptrs_unique [=name1,name2, ...nameN], +O[no]initcheck, +O[no]inline[=name1, name2, ...nameN], +O[no]libcalls, +O[no]loop_transform, +O[no]loop_unroll[=unroll factor], +O[no]moveflops, +O[no]parallel, +O[no]parmsoverlap, +O[no]pipeline, +O[no]procelim, +O[no]ptrs_ansi, +O[no]ptrs_strongly_typed, +O[no]ptrs_to_globals[=name1, name2, ...nameN], +O[no]regionsched, +O[no]regreassoc, +O[no]sideeffects=[name1, name2, ...nameN], +O[no]signedpointers, +O[no]static_prediction, +O[no]vectorize, +O[no]volatile, +O[no]whole_program_mode, Aliasing Options
NO_SIDE_EFFECTS pragma, Alias Pragmas, NO_SIDE_EFFECTS Pragma
NOINLINE pragma, Inlining Pragmas
NOPADDING alignment, The HP_ALIGN Pragma
noshare VMS C class modifier, Core Language Features
null pointers in C, accessing, Dereferencing Null Pointers

O

online help, HP C Online Help

OPT_LEVEL pragma, Optimizer Control Pragmas

optimization

+ESfic option, Supporting Optimization Options
+ESlit option, Supporting Optimization Options
+I option, Supporting Optimization Options
+Oaggressive option, Changing the Aggressiveness of Optimizations
+Oconservative option, Changing the Aggressiveness of Optimizations
+Oinline_budget, +Oinline_budget[=n]
+P option, Supporting Optimization Options
advanced features, Controlling Specific Optimizer Features
aliasing options, Aliasing Options
branch, Branch Optimization
dead code elimination, Dead Code Elimination
instruction scheduling, Instruction Scheduler
level 0, Summary of Major Optimization Levels
level 1, Summary of Major Optimization Levels, Level 1 Optimization Modules
level 2, Summary of Major Optimization Levels, Level 2 Optimization Modules
level 3, Summary of Major Optimization Levels, Level 3 Optimizations
level 4, Summary of Major Optimization Levels, Level 4 Optimizations
loop, Register Reassociation
+Odataprefetch, +O[no]dataprefetch, +O[no]entrysched, +O[no]fail_safe, +O[no]fastaccess, +O[no]fltacc, +O[no]global_ptrs_unique [=name1,name2, ...nameN], +O[no]initcheck, +O[no]inline[=name1, name2, ...nameN], +O[no]libcalls, +O[no]loop_transform, +O[no]loop_unroll[=unroll factor], +O[no]moveflops, +O[no]parallel, +O[no]parmsoverlap, +O[no]pipeline, +O[no]procelim, +O[no]ptrs_ansi, +O[no]ptrs_strongly_typed, +O[no]ptrs_to_globals[=name1, name2, ...nameN], +O[no]regionsched, +O[no]regreassoc, +O[no]sideeffects=[name1, name2, ...nameN], +O[no]signedpointers, +O[no]static_prediction, +O[no]vectorize, +O[no]volatile, +O[no]whole_program_mode
parameters, Summary of Optimization Parameters
peephole, Peephole Optimizations
register allocation, Faster Register Allocation

OPTIMIZE pragma, Optimizer Control Pragmas, Optimizer Control Pragmas

optimizer

using register qualifier variables, Coloring Register Allocation

order, byte, Byte Order

P

padding, Defining Platform Independent Data Structures

HP 1000, CCS/C on the HP 1000 and HP 3000
HP 3000, CCS/C on the HP 1000 and HP 3000
HP-UX workstation and server padding, HP C/HP-UX 9000 Workstations and Servers and HP C/iX
VAX/VMS C, VAX/VMS C

padding bytes in C structures, Ensuring Alignment without Pragmas

parameter passing, Comparing HP C and HP Pascal

formal and actual parameters, Type Differences between Actual and Formal Parameters
HP FORTRAN 77, Passing Parameters Between HP C and HP FORTRAN 77
HP Pascal, Passing Parameters Between HP C and HP Pascal

parameter passing in C, Parameter Lists

Pascal

calling from C, Calling Pascal
compared to HP C, Comparing HP C and HP Pascal, Notes on HP C and HP Pascal
linking, Linking HP Pascal Routines on HP-UX
passing parameters with HP C, Passing Parameters Between HP C and HP Pascal
storage allocation, Comparing HP C and HP Pascal
variant record, Notes on HP C and HP Pascal

passing by value, Comparing HP C and HP Pascal, Passing Parameters Between HP C and HP Pascal

passing parameters, Passing Parameters Between HP C and HP Pascal

HP FORTRAN 77, Passing Parameters Between HP C and HP FORTRAN 77

pcc (Portable C Compiler), Guidelines for Portability

pointer casting in C, Casting Pointer Types

pointers, Accessing Non-Natively Aligned Data with Pointers

misaligned, Data Alignment

portability, Defining Platform Independent Data Structures, Aligning Structures Between Architectures, Guidelines for Portability

pragma

INLINE, Inlining Pragmas

pragmas

ALLOCS_NEW_MEMORY, ALLOCS_NEW_MEMORY pragma
FLOAT_TRAPS_ON, FLOAT_TRAPS_ON pragma
HP_ALIGN pragma, The HP_ALIGN Pragma
PTRS_STRONGLY_TYPED, [NO]PTRS_STRONGLY_TYPED Pragma
NO_SIDE_EFFECTS, Alias Pragmas, NO_SIDE_EFFECTS Pragma
NOINLINE, Inlining Pragmas
OPT_LEVEL, Optimizer Control Pragmas
OPTIMIZE, Optimizer Control Pragmas, Optimizer Control Pragmas

predefined symbols in C, Conditional Compilation, Predefined Symbols

preprocessor, Predefined Macro Names

preprocessor directives from Domain/C, Porting between HP C and Domain/C

preprocessor statements, Guidelines for Portability

profile-based optimization

+df option, Maintaining Profile Data Files
+pgm option, Maintaining Instrumented and Optimized Program Files
flow.data file, Maintaining Profile Data Files

program checker, lint, Guidelines for Portability

programming languages, calling other, Comparing HP C and HP Pascal

promotion rules

unsigned char, Silent Changes for ANSI C
unsigned short, Silent Changes for ANSI C

PWB macro, Predefined Macro Names

R

READ statements, Mixing C and FORTRAN File I/O
readonly VMS C class modifier, Core Language Features
references, structure, Invalid Structure References
register allocation, Faster Register Allocation
register qualifier variables, Coloring Register Allocation
register reassociation, Register Reassociation
register storage class in C, Register Storage Class, Core Language Features
renaming flow.data file during profile-based optimization, Maintaining Profile Data Files

S

scalar

alignment, Alignment of Scalar Types

scheduler, instruction, Instruction Scheduler

segment violation, Dereferencing Null Pointers

Series 300/400 alignment, HP C on the Series 300/400

SIGFPE signal, Floating-Point Exceptions, Overflow During Conversion from Floating Point to Integral Type

signal system call, Floating-Point Exceptions, Overflow During Conversion from Floating Point to Integral Type

SIGSEGV signal, Dereferencing Null Pointers

sized enumerations, HP C on the Series 300/400, Practices to Avoid, HP C Extensions to ANSI C (+e)

sizeof operator in C, The sizeof Operator

space, white, White Space

stdarg, Parameter Lists

storage

CCS/C, CCS/C on the HP 1000 and HP 3000
VAX/VMS C, VAX/VMS C

storage allocation

FORTRAN 77, Comparing HP C and HP FORTRAN 77
HP Pascal, Comparing HP C and HP Pascal

string constants in VMS C, Core Language Features

string descriptor, Notes on HP C and HP Pascal, Notes on HP C and HP FORTRAN 77

string variables, Passing Parameters Between HP C and HP FORTRAN 77

strings

HP C structure corresponding to Pascal string, Notes on HP C and HP Pascal
passed as parameter between HP C and Pascal, Passing Parameters Between HP C and HP Pascal
passed as parameters to other languages, Comparing HP C and HP Pascal

structure assignment in C, Structure Assignment

structure-value functions in C, Structure-Valued Functions

structures

accessing non-natively aligned data, Accessing Non-Natively Aligned Data with Pointers
alignment within, Alignment of Arrays
declared in a function prototype, Declaration of a Structure in a Prototype Parameter
HP C compared to FORTRAN 77 and Pascal, Comparing Structured Data Type Declarations
referencing through pointers, Invalid Structure References

structures in VMS C, Core Language Features

subscripting arrays, Notes on HP C and HP Pascal

swab function, Byte Order

swap bytes, Byte Order

SYS$LIBRARY on VMS, Compiler Environment

T

temporary files in C, Temporary Files ($TMPDIR)

TIME predefined names, Porting between HP C and Domain/C

TMPDIR environment variable and C, Temporary Files ($TMPDIR)

tools, HP Specific Features of lex and yacc

trigraphs, Silent Changes for ANSI C

type aliasing options, Aliasing Options

type casting pointers in C, Casting Pointer Types

type definitions, Accessing Non-Natively Aligned Data with Pointers, Typedefs

type incompatibilities in C, Type Incompatibilities and typedef

typedef

alignment, Alignment of Typedefs

typedef keyword in C, Type Incompatibilities and typedef

typedef keyword in VMS C, Core Language Features

types, Comparing Structured Data Type Declarations

U

U_INIT_TRAPS Pascal procedure, Calling Pascal
unaligned data, accessing, Accessing Unaligned Data
unconditional branches, Branch Optimization
undef preprocessor directive, Predefined Macro Names
underscore in identifier, Leading Underscore
union, Notes on HP C and HP Pascal, Guidelines for Portability
unix macro, Predefined Macro Names
unix symbol, Predefined Symbols, Preprocessor Features
unsigned C modifier, Core Language Features
unsigned char conversion to int, Conversions between unsigned char or unsigned short and int
unsigned char data type in C, The char Data Type
unsigned preserving, Conversions between unsigned char or unsigned short and int
unsigned short conversion to int, Conversions between unsigned char or unsigned short and int

V

value preserving, Conversions between unsigned char or unsigned short and int

value, passing by, Comparing HP C and HP Pascal

varargs, Parameter Lists, Compiler Environment

variable argument lists, Parameter Lists

variable initialization in C, Variable Initialization

variable shifts in ANSI C, Silent Changes for ANSI C

variables

boolean, Notes on HP C and HP Pascal
string, Passing Parameters Between HP C and HP FORTRAN 77

VAX, Byte Order

floating-point format, Floating-Point Format
pcc, Guidelines for Portability
VMS C, VAX/VMS C
VMS C padding, VAX/VMS C

VMS C

char, Core Language Features
character constants, Core Language Features
compiler environment, Compiler Environment
D_floating format, Core Language Features
data types and alignments, Core Language Features
enum, Core Language Features
F_floating format, Core Language Features
floating-point formats in memory, Core Language Features
floating-point types, Core Language Features
G_floating format, Core Language Features
globaldef, Core Language Features
globalref, Core Language Features
globalvalue, Core Language Features
identifiers, Core Language Features
main program modifier, Core Language Features
noshare, Core Language Features
overview, Porting between HP C and VMS C
preprocessor features, Preprocessor Features
readonly, Core Language Features
string constants, Core Language Features
structure alignment, Core Language Features
SYS$LIBRARY, Compiler Environment
typedef keyword, Core Language Features
uninitialized pointers, Core Language Features
unsigned, Core Language Features
varargs(5), Compiler Environment
void, Core Language Features

void data type in C, Core Language Features

volatile keyword, const and volatile Qualifiers, Mixing of const and volatile Qualifiers and Function Prototypes

vprintf(3) library call, Parameter Lists

W

white space trailing macros, White Space
write(2) system call, Input/Output

X

X3.159-1989, The sizeof Operator
xdb, Isolating System-Dependent Code with include Files

Y

yacc, HP Specific Features of lex and yacc

Index

Technical documentation

» Table of Contents

» Index

Symbols

A

B

C

D

E

F

G

H

I

K

L

M

N

O

P

R

S

T

U

V

W

X

Y