Fortran 77 Language Reference

A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

Index

Symbols

!, 1

$, 1

edit descriptor, 1

NAMELIST delimiter, 1

%DESCR, 1

%FILL, 1, 2

%LOC, 1

%REF, 1

%VAL, 1

&, 1, 2, 3, 4

', 1

', 1

*, 1, 2, 3

alternate return, 1, 2

comments, 1

+, 1

., 1

, blank character, 1

/, 1, 2

// concatenate string, 1

:

array bounds, 1

character constants, 1

edit descriptor, 1

substring operator, 1

<>, 1, 2, 3

=, 1

?, 1

, 1

\, 1

_, 1

Numerics

0, 1, + vertical format control, 1

A

A format specifier, 1

ACCEPT, 1, 2

access

append option in open, 1

modes, 1

options in OPEN, 1

SEQUENTIAL in OPEN file, 1

two modes for accessing a file, 1

ACHAR, 1

address

assignment, pointers, 1

malloc, 1

adjustable array bounds, 1

alignment

structures, as in VMS, 1, 2

summary of data types, 1

allowed I/O combinations, 1

alternate

octal notation, 1

return, 1, 2

ampersand, alternate return, 1, 2, 3

anonymous field, 1, 2

ANSI X3.9-1978 FORTRAN standard, 1

apostrophe

character constants, 1, 2

direct-access record, 1, 2, 3

format specifier, 1

append on open, 1

arguments

dummy, disallowed in NAMELIST, 1

fields, 1, 2

omitted, 1

records, 1, 2

arithmetic

assignment, 1

assignment statement, 1

expression, 1, 2

IF, 1

intrinsic functions, 1

operations on extreme values, 1

operator, 1

array

adjustable bounds, 1

assumed size, 1

bounds, 1

character, 1, 2

complex numbers, 1

declarators, 1

definition, 1

dimensions, 1

double-complex, 1

elements

data types, 1

disallowed in NAMELIST, 1

input by NAMELIST, 1

names with no subscripts, 1

ordering, 1

real, 1

subscripts, 1

ASCII character set, 1

ASSIGN, 1

assignment

arithmetic, 1, 2

character, 1, 2

logical, 1

statement, 1

assumed size array, 1

asterisk

alternate return, 1, 2

hex and octal output, 1

AUTOMATIC, 1

automatic structure not allowed, 1

B

B

constant indicator, 1

format specifier, 1

backslash, 1, 2, 3, 4

BACKSPACE, 1

backspace character, 1

basic terms, 1

binary

constants, 1

I/O, 1

initialization, 1

operator, 1

binary file, 1

bit

and byte order, 1

manipulation functions, 1, 2

operators, 1

blank

column one, 1, 2

control, 1

field in octal or hex input, 1

fields in octal or hex input, 1

line comments, 1

not significant in words, 1

BLANK OPEN specifier, 1

BLOCK DATA, 1

initialize, 1

names, 1

block IF, 1

BN format specifier, 1

boundary for variable alignment, 1

bounds on arrays, 1

BYTE, 1

byte and bit order, 1

BYTE data type, 1

BZ format specifier, 1

C

c

comments, 1

directive, 1

CALL, 1

carriage control, 1, 2

$, 1

all files, 1

blank, 0, 1, 1

first character, 1

space, 0, 1, 1

carriage return, $ edit descriptor, 1

case, 1, 2

CHAR, 1, 2

CHARACTER

data type, 1

statement, 1

character

array, 1

assignment, 1, 2, 3, 4

boundary, 1

concatenate, 1

constant

delimiter, 1

NAMELIST, 1

constants, 1

declared length, 1

declaring the length, 1

dummy argument, 1

editing, 1

expression, 1

format specifier, 1

functions, 1

join, 1

null constants, 1

operator, 1

packing, 1

set, 1

strings, 1

substring, 1

valid characters in names, 1

characters, special, 1

CLOSE, 1

CMPLX, 1

colon (:)

array bounds, 1

edit descriptor, 1

substring operator, 1

column one formatting, 1

combinations of I/O, 1

commands, 1

commas in formatted input, 1

comments, 1

!, 1

*, 1

blank-line, 1

C, 1

embedded, 1

end-of-line, 1, 2

COMMON, 1, 2, 3

complex

array, 1

constant in NAMELIST, 1

constants, 1

data type, 1

statement, 1

COMPLEX*16, 1, 2

COMPLEX*32, 1, 2

COMPLEX*8, 1

computed GO TO, 1

concatenation

of strings, 1

operator, 1

conditional termination control, 1

consecutive

commas, NAMELIST, 1

operators, 1

constant

expression, 1

names (symbolic constants), 1

null character constants, 1

octal, 1

radix-50, 1

signed, 1

typeless numeric, 1

unsigned, 1

values in NAMELIST, 1

constants, 1

binary, 1

characters, 1

complex, 1

COMPLEX*16, 1

COMPLEX*32, 1

double complex, 1

double-precision real, 1

fortran 95-style, 1

hex, 1

integer, 1

logical, 1

octal, 1

quad complex, 1

quad real, 1

real, 1

REAL*16, 1

REAL*4, 1

REAL*8, 1

typeless, 1

continuation lines, 1, 2

CONTINUE, 1

control characters, 1, 2, 3

in assignment, 1, 2

meanings, 1

D

d comments, 1

D format specifier, 1

DATA, 1

data

namelist syntax, 1, 2

representation

double precision, 1

real number, 1

signed infinity, 1

type

BYTE, 1

CHARACTER, 1

COMPLEX, 1

COMPLEX*16, 1

COMPLEX*32, 1

COMPLEX*8, 1

DOUBLE COMPLEX, 1, 2

DOUBLE PRECISION, 1

INTEGER, 1

INTEGER*4, 1

LOGICAL, 1

LOGICAL*1, 1, 2

LOGICAL*2, 1

LOGICAL*4, 1, 2

of an expression, 1

properties, 1

quad real, 1

REAL, 1

REAL*16, 1

REAL*4, 1

REAL*8, 1

short integer, 1

data types and data structures, 1

DBLE, 1

DBLEQ, 1

DCMPLX, 1

deallocate memory by free, 1

debug statement, 1

decimal point in octal or hex input, 1

declaration

field, 1, 2, 3

initialize in, 1

map, 1, 2

record, 1, 2

structure, 1

union, 1

DECODE, 1

default

inquire options, 1

delimiter

character constant, 1

NAMELIST: $ or &, 1

DFLOAT, 1

DIMENSION, 1

dimension arrays, 1

direct

I/O, 1

I/O record specifier, 1, 2, 3

DIRECT option for ACCESS in OPEN file, 1

directives

general, 1

parallelization, 1

DISPOSE option for CLOSE, 1

DO, 1

DO WHILE, 1

DOALL directive, 1

dollar sign

edit descriptor, 1

in names, 1

NAMELIST delimiter, 1

DOSERIAL directive, 1

DOUBLE COMPLEX, 1, 2

DOUBLE PRECISION, 1, 2

double quote, 1, 2

character constants, 1

preceding octal constants, 1

double spacing print, 1

double-complex

arrays, 1

constants, 1

data type, 1

double-precision

complex, 1

complex function, 1

data representation, 1

editing, 1

real constants, 1

DREAL, 1

dummy arguments and NAMELIST, 1

E

-e, 1

E format specifier, 1

edit descriptor

/, 1

:, 1

A, 1

D, 1

E, 1

F, 1

G, 1

I, 1

L, 1

P, 1

positional, 1

Q, 1

S, 1

SP, 1

SS, 1

SU, 1

T, 1

X, 1

ELSE, 1

ELSE IF, 1

embedded comments, 1

empty spaces in structures, 1, 2

ENCODE, 1, 2

END, 1

END DO, 1

END FILE, 1

END IF, 1

END MAP, 1

end of text, 1

END STRUCTURE, 1

END UNION, 1

end-of-line comments, 1, 2

ENTRY, 1

environmental inquiry functions, 1

epbase, 1

ephuge, 1

epmax, 1

epmin, 1

epmrsp, 1

epprec, 1

eptiny, 1

equals statement, 1

EQUIVALENCE, 1

ERR

INQUIRE, 1

OPEN specifier, 1

READ, 1

WRITE, 1

error

I/O, 1

escape sequences, 1

evaluation of expressions, 1

executable statements, 1

exponential editing, 1

exponents in octal or hex input, 1

expression

arithmetic, 1, 2

character, 1

constant, 1

evaluation, 1

logical, 1

variable format, 1

extended source lines, 1

extensions, 1

EXTERNAL, 1

extract substring, 1

extreme

exponent data representation, 1

values for arithmetic operations, 1

F

F format specifier, 1

field, 1

argument that is a field, 1, 2

COMMON with a field, 1, 2

declaration, 1, 2, 3

DIMENSION with a field, 1, 2

dimensioning in type statements, 1, 2

EQUIVALENCE, not allowed in, 1, 2

list, 1

list of a structure, 1, 2

map with a field, 1, 2

name, %FILL, 1, 2

NAMELIST, not allowed in, 1, 2

offset, 1, 2

reference, 1

SAVE, not allowed in, 1, 2

type, 1, 2

file

append on open, 1

carriage control on all files, 1

INQUIRE, 1

internal, 1

limit on number open, 1

names, VMS logical, 1, 2

preattached, 1

properties, 1

query, 1

See also scratch files1

specifier for opening, 1

two access modes for, 1

FILE= specifier, 1

filling with asterisks or spaces, hex and octal output, 1

first character carriage control, 1

FLOAT, 1

form feed character, 1

FORM specifier in OPEN, 1

FORM='BINARY', 1

FORM='PRINT', 1

FORMAT, 1

format

$, 1

/, 1

:, 1

A, 1

B, 1

BN, 1

BZ, 1

D, 1

defaults for field descriptors, 1

E, 1

F, 1

G, 1

I, 1

L, 1

O, 1

of source line, 1

P, 1

Q, 1

R, 1

read into hollerith edit descriptor, 1

S, 1

SP, 1

specifier, 1

SS, 1

standard fixed, 1

SU, 1

tab, 1

variable expressions, 1, 2

vertical control, 1

X, 1

Z, 1

format specifier ", 1

formats, 1

runtime, 1, 2, 3, 4, 5

variable format expressions, 1

formatted

I/O, 1

output, 1

formatted I/O, 1

forms of I/O, 1

FORTRAN

list of statements, 1

Fortran 95-style constants, 1

free, 1, 2

FUNCTION, 1

function

bit-manipulation, 1

double-precision complex, 1

integer, 1

intrinsic, 1

length specifier, 1

malloc, 1

memory allocation and deallocation, 1

names, 1

type coercing, 1

types, 1

zero-extend, 1

G

G format specifier, 1

general real editing, 1

GO TO, 1, 2

GO TO assigned, 1

GO TO unconditional, 1

GO TO, computed, 1

H

hex and octal

format, 1

format samples, 1

input, 1

input rules, 1

output, 1, 2

hexadecimal

constants, 1

initialization, 1

hollerith, 1, 2

horizontal positioning, 1

I

I format specifier, 1

I/O, 1

allowable combinations, 1

binary, 1

direct, 1

errors, 1

random, 1

summary, 1

-i2, 1

IACHAR, 1

ICHAR, 1

IDINT, 1

IEEE

representation of selected numbers, 1

IF, 1, 2, 3

IFIX, 1

illegal REAL expressions, 1

IMPLICIT, 1

implicit

none data typing, 1

typing, 1

implicit data typing, 1

INCLUDE, 1, 2

initial line, 1

initialize

in BLOCK DATA, 1

in COMMON, 1

in declaration, 1

input commas, 1

INQUIRE, 1, 2

inquire

by file, 1

by unit, 1, 2

specifiers summary, 1

inquire option

ACCESS, 1

BLANK, 1

defaults, 1

DIRECT, 1

ERR, 1

EXIST, 1

FILE, 1

FORM, 1

FORMATTED, 1

IOSTAT, 1

NAME, 1

NAMED, 1

NEXTREC, 1

none for permissions, 1

NUMBER, 1

OPENED, 1

RECL, 1

SEQUENTIAL, 1

UNFORMATTED, 1

UNIT, 1

INT, 1

INTEGER, 1, 2

integer

and logical, 1

constants, 1

editing, 1

functions, 1

logical, mixed expressions, 1

operand with logical operator, 1

short, 1

INTEGER*2, 1

INTEGER*4, 1

INTEGER*8, 1

internal files, 1

INTRINSIC, 1

intrinsic functions, 1, 2

arithmetic, 1

character, 1

environmental inquiry, 1

mathematical, 1

memory allocation and deallocation, 1

special VMS, 1

trigonometric, 1

type conversions, 1

invalid characters for data, 1

ioinit, 1

IOSTAT OPEN specifier, 1

IQINT, 1

ishift, 1

ISO 1539-1980 FORTRAN standard, 1

J

join strings, 1

K

key word, 1

kind type parameter in constants, 1

L

L format specifier, 1

label of statement, 1

leading spaces or zeros, hex and octal output, 1

left-to-right

exception, 1

precedence, 1

len, declared length, 1

length

function length specifier, 1, 2, 3

LEN function, 1

line of source code, 1

names, 1

string, 1

variable length records, 1

line

formats, 1

length, 1

tab-format, 1, 2

line feed, 1

linked list, 1

list-directed

I/O, 1

input, 1

output, 1

output to a print file, 1

literal constant, 1

literals type REAL*16, 1

loc, 1, 2

location of scratch files, 1

LOGICAL, 1, 2

logical

assignment, 1, 2

constants, 1

editing, 1

expression, 1

expression meaning, 1

file names in the INCLUDE, 1

file names, VMS, 1, 2

IF, 1

integer, mixed, 1

LOGICAL*1 data type, 1

operator precedence, 1

unit preattached, 1

units, 1

LOGICAL*1, 1

LOGICAL*2, 1

LOGICAL*4, 1

LOGICAL*8, 1

long lines in source code, 1

lower case, 1, 2

lrshft, 1

M

malloc, 1, 2

man pages, 1

MANPATH environment variable, 1

MAP, 1, 2, 3

maximum

number of open files, 1

memory

get by malloc, 1

release by free, 1

memory allocation and deallocation functions, 1

mixed

integer and logical, 1, 2

mode, 1, 2

mixed mode, 1

mixing format of source lines, 1

modifying

carriage control, 1

multithreading

See parallelization1

N

name of scratch files, 1

NAME option for OPEN, 1

NAMELIST, 1, 2, 3, 4

$, 1

&, 1

ask for names, 1

namelist-specifier, 1

NML=, 1

prompt for names, 1

restrictions, 1

WRITE, 1

namelist

data, 1, 2

data syntax, 1

END, 1

I/O, 1

negative values, hex and octal output, 1

nested substructure, 1

newline character, 1, 2

NML=, 1

noncharacter runtime format specifier, 1

none, implicit data typing, 1

nonexecutable statements, 1

nonstandard

PARAMETER, 1, 2

notation octal alternate, 1

null

character, 1

character constants, 1

data item, NAMELIST, 1

number of

continuation lines, 1

open files, 1

numeric constant, typeless, 1

O

O

constant indicator, 1

edit descriptor, 1

octal

alternate notation, 1

constant, 1

constants, 1

initialization, 1

octal and hex

format, 1

format samples, 1

input, 1

input rules, 1

output, 1, 2

offset of fields, 1, 2

omitted arguments, 1

OPEN

specifier

ACCESS, 1

BLANK, 1

ERR, 1

FILE, 1

FORM, 1

IOSTAT, 1

RECL, 1

STATUS, 1

UNIT, 1

OPEN

options, 1

print file, 1

statement, 1, 2

open files, limit of, 1

operand, 1

operator, 1

**, 1

// concatenate string, 1

: substring, 1

character, 1

concatenation, 1

precedence, 1

relational, 1

two consecutive operators, 1, 2

with extreme values, 1

optimization problems with pointers, 1

option

DISPOSE for CLOSE, 1

-e, 1

i2 short integer, 1

long lines, 1

NAME for OPEN, 1

number of continuation lines, 1

OPTIONS, 1

order bit and byte, 1

P

P edit descriptor, 1

packing character, 1

padding, 1

PARAMETER

nonstandard alternate, 1, 2

statement, 1, 2, 3

parameter name, 1

PATH environment variable, 1

PAUSE, 1

permissions

ACCESS in INQUIRE, 1

pointee, 1

POINTER, 1

pointer, 1, 2

address assignment, 1

address by LOC, 1, 2

disallowed in NAMELIST, 1

linked list, 1

problems with optimization, 1

restrictions, 1

VOLATILE, 1

pointer-based variable, 1, 2

positional

edit descriptor, 1

format editing, 1

preattached

files, 1

logical units, 1

precedence

logical operator, 1

operators, 1

PRINT, 1

print file, 1, 2, 3

procedures, 1

PROGRAM, 1

program, 1

names, 1

units, 1

promote types, 1

prompt

for namelist names, 1

properties, file, 1

Q

Q edit descriptor, 1

QCMPLX, 1

QEXT, 1

QEXTD, 1

QFLOAT, 1

QREAL, 1

quad

complex, 1

complex constants, 1

exponent, 1

real constants, 1

real data type, 1

type REAL*16 literals, 1

quadruple precision, See quad1

quote, 1, 2

character constants, 1

format specifier, 1

preceding octal constants, 1

R

-r4, 1

radix, 1

radix-50 constant, 1

random

I/O, 1

READ, 1

read

into hollerith edit descriptor, 1

REAL, 1, 2

expressions, illegal, 1

intrinsic, 1

real

arrays, 1

constants, 1

data representation of reals, 1

editing, 1, 2

REAL*16, 1, 2, 3

REAL*4, 1, 2

REAL*8, 1, 2

RECL specifier in OPEN, 1

recl=1, variable length records, 1

RECORD, 1

record, 1

argument that is a record, 1, 2

assignment, 1

AUTOMATIC, not allowed in, 1

COMMON with a record, 1, 2

DATA, not allowed in, 1, 2

DIMENSION with a record, 1

disallowed in NAMELIST, 1

EQUIVALENCE, not allowed in, 1, 2

NAMELIST, not allowed in, 1, 2

PARAMETER, not allowed in, 1

reference, 1

SAVE, not allowed in, 1, 2

size, unformatted, 1, 2

specifier, direct-access, 1, 2, 3

statement, 1

STATIC, not allowed in, 1

variable length, 1

recursive, 1, 2, 3

reference

field, 1

record, 1

relational operator, 1

release memory by free, 1

repeat NAMELIST, 1

representation of data, 1

requesting namelist names, 1

restrictions

fields, 1, 2

hex and octal output, 1

NAMELIST, 1

names, 1

pointers, 1

Q edit descriptor, 1

records, 1, 2

structures, 1, 2

substructures, 1

RETURN, 1

return alternate, 1, 2, 3

reverse solidus, 1

REWIND, 1

rshift, 1

runtime formats, 1, 2, 3, 4, 5, 6

S

S edit descriptor, 1

same line response, 1

sample statements, 1

SAVE, 1

scale

control, 1

factor, 1

scratch files

defined, 1

location, 1

naming, 1

SCRATCH option for OPEN, 1

SEQUENTIAL option for ACCESS in OPEN file, 1

short

integer data type, 1

integers, 1

sign control, 1

signed constant, 1

signed infinity data representation, 1

signs in octal or hex input, 1

single spacing, 1

size of character string, 1

SIZEOF, 1

sizes, summary of data types, 1

skip

NAMELIST, 1

slash

editing, 1

list-directed input, 1

slew control, 1, 2

SNGL, 1

SNGLQ, 1

Solaris versions supported, 1

source

line formats, 1

lines long, 1

tab-format, 1

SP edit descriptor, 1

space, 1, 2, 3

spaces, leading, hex and octal output, 1

special characters, 1, 2

SS edit descriptor, 1

standard

fixed format source, 1

units, 1

standards

conformance, 1

start of heading and text, 1

statement, 1, 2

function, 1

label, 1

list of all statements, 1

samples, 1

STATIC, 1

STATUS OPEN specifier, 1

stderr, 1

stdin, 1

stdout, 1

STOP, 1

string

assignment, 1

concatenate, 1

in list-directed I/O, 1

join, 1

NAMELIST, 1

STRUCTURE, 1

structure, 1

alignment, VMS, 1, 2

disallowed in NAMELIST, 1

dummy field, 1, 2

empty space, 1

fill space, 1

name, 1, 2, 3

nested, 1

not allowed as a substructure of itself, 1

restrictions, 1

substructure, 1

syntax, 1

union, 1, 2

SU edit descriptor, 1

subprogram names, 1

SUBROUTINE, 1

subscript

arrays, 1

expressions, 1

substring, 1

disallowed in NAMELIST, 1

NAMELIST, 1

substructure, 1

map, 1, 2

union, 1, 2

successive operators, 1

summary

I/O, 1

inquire options, 1

suppress carriage return, 1

symbolic

constant name, 1

name, 1, 2

syntax

field Reference, 1

INQUIRE statement, 1

maps, 1, 2

NAMELIST

input, 1

input data, 1, 2

output, 1

statement, 1

OPEN statement, 1

record reference, 1

records, 1, 2

structure, 1, 2

unions, 1, 2

T

T edit descriptor, 1

tab, 1

character, 1

control, 1

format source, 1, 2

TASKCOMMON directive, 1

temporary files, 1

terminal

I/O, 1

termination control edit descriptor, 1

TMPDIR environment variable, 1

top of page, 1

two consecutive operators, 1

TYPE, 1, 2

type

coercing functions, 1

field names, 1, 2

REAL*16, 1

type, 1

typeless

constants, 1

numeric constant, 1

types

array elements, 1

files, 1

functions, 1

summary of, 1

U

unary + or -, 1

unary operator, 1

unconditional GO TO, 1

underscore

in function or subprogram names, 1

names with, 1

unformatted

I/O, 1

record size, 1, 2

UNION, 1

union declaration, 1, 2

unit, logical unit preattached, 1

UNIT, OPEN specifier, 1

unsigned constant, 1

upper case, 1, 2

V

valid

characters for data, 1

characters in character set, 1

characters in names, 1

values, extreme for arithmetic operations, 1

variable

boundary, 1

definition of, 1

Example FORMAT expression, 1

name, 1

part of iolist, 1

variable formats, 1, 2, 3, 4, 5, 6, 7, 8

variable-length records, 1

vertical format control, 1

$, 1

space,0, 1, +, 1

vertical tab character, 1

VIRTUAL, 1, 2

VMS FORTRAN

align structures, 1

features with -xl

backslash, 1, 2, 3

D or d debug lines, 1

debugging lines, 1

logical file names, 1, 2, 3

parameter form, 1, 2, 3

quotes, 1

record length, 1, 2

features with -xl

record length, 1

unsupported extensions, 1

VOLATILE, 1

W

width defaults for field descriptors, 1

word boundary, 1

WRITE, 1

X

X

constant indicator, 1

edit descriptor, 1

-xl, 1, 2, 3, 4, 5, 6, 7, 8

-xld, 1

-xtypemap, 1

Z

Z

constant indicator, 1

edit descriptor, 1

zero, leading, in hex and octal output, 1

zero-extend functions, 1