AS/NZS 1486:1993

1 - AS/NZS 1486:1993 INFORMATION TECHNOLOGY - PROGRAMMING LANGUAGES - FORTRAN 90
4 - PREFACE
5 - CONTENTS
15 - Introduction
15 - Overview
20 - Section 1 : Overview
20 - 1.1 Scope
20 - 1.2 Processor
20 - 1.3 Inclusions and exclusions
20 - 1.3.1 Inclusions
20 - 1.3.2 Exclusions
21 - 1.4 Conformance
22 - 1.4.1 FORTRAN 77 compatibility
22 - 1.5 Notation used in this International Standard
22 - 1.5.1 Syntax rules
23 - 1.5.2 Assumed syntax rules
24 - 1.5.3 Syntax conventions and characteristics
24 - 1.5.4 Text conventions
24 - 1.6 Deleted and obsolescent features
24 - 1.6.1 Nature of deleted features
24 - 1.6.2 Nature of obsolescent features
25 - 1.7 Modules
25 - 1.8 Normative references
26 - Section 2 : Fortran terms and concepts
26 - 2.1 High level syntax
28 - 2.2 Program unit concepts
29 - 2.2.1 Executable program
29 - 2.2.2 Main program
29 - 2.2.3 Procedure
29 - 2.2.4 Module
30 - 2.3 Execution concepts
30 - 2.3.1 Executable/nonexecutable statements
30 - 2.3.2 Statement order
31 - 2.3.3 The END statement
31 - 2.3.4 Execution sequence
32 - 2.4 Data concepts
32 - 2.4.1 Data type
32 - 2.4.2 Data value
32 - 2.4.3 Data entity
33 - 2.4.4 Scalar
34 - 2.4.5 Array
34 - 2.4.6 Pointer
34 - 2.4.7 Storage
34 - 2.5 Fundamental terms
34 - 2.5.1 Name and designator
35 - 2.5.2 Keyword
35 - 2.5.3 Declaration
35 - 2.5.4 Definition
35 - 2.5.5 Reference
35 - 2.5.6 Association
35 - 2.5.7 Intrinsic
35 - 2.5.8 Operator
36 - 2.5.9 Sequence
37 - Section 3 : Characters, lexical tokens, and source form
37 - 3.1 Processor character set
37 - 3.1.1 Letters
37 - 3.1.2 Digits
37 - 3.1.3 Underscore
38 - 3.1.4 Special characters
38 - 3.1.5 Other characters
38 - 3.2 Low-level syntax
38 - 3.2.1 Keywords
38 - 3.2.2 Names
39 - 3.2.3 Constants
39 - 3.2.4 Operators
40 - 3.2.5 Statement labels
40 - 3.2.6 Delimiters
40 - 3.3 Source form
41 - 3.3.1 Free source form
42 - 3.3.2 Fixed source form
43 - 3.4 Including source text
44 - Section 4 : Intrinsic and derived data types
44 - 4.1 The concept of data type
44 - 4.1.1 Set of values
44 - 4.1.2 Constants
45 - 4.1.3 Operations
45 - 4.2 Relationship of types and values to objects
45 - 4.3 Intrinsic data types
45 - 4.3.1 Numeric types
49 - 4.3.2 Nonnumeric types
51 - 4.4 Derived types
51 - 4.4.1 Derived-type definition
54 - 4.4.2 Determination of derived types
55 - 4.4.3 Derived-type values
56 - 4.4.4 Construction of derived-type values
56 - 4.4.5 Derived-type operations and assignment
56 - 4.5 Construction of array values
58 - Section 5 : Data object declarations and specifications
58 - 5.1 Type declaration statements
60 - 5.1.1 Type specifiers
62 - 5.1.2 Attributes
67 - 5.2 Attribute specification statements
67 - 5.2.1 INTENT statement
68 - 5.2.2 OPTIONAL statement
68 - 5.2.3 Accessibility statements
69 - 5.2.4 SAVE statement
69 - 5.2.5 DIMENSION statement
69 - 5.2.6 ALLOCATABLE statement
70 - 5.2.7 POINTER statement
70 - 5.2.8 TARGET statement
70 - 5.2.9 DATA statement
72 - 5.2.10 PARAMETER statement
73 - 5.3 IMPLICIT statement
75 - 5.4 NAMELIST statement
75 - 5.5 Storage association of data objects
75 - 5.5.1 EQUIVALENCE statement
77 - 5.5.2 COMMON statement
80 - Section 6 : Use of data objects
81 - 6.1 Scalars
81 - 6.1.1 Substrings
81 - 6.1.2 Structure components
82 - 6.2 Arrays
82 - 6.2.1 Whole arrays
82 - 6.2.2 Array elements and array sections
86 - 6.3 Dynamic association
86 - 6.3.1 ALLOCATE statement
87 - 6.3.2 NULLIFY statement
87 - 6.3.3 DEALLOCATE statement
89 - Section 7 : Expressions and assignment
89 - 7.1 Expressions
89 - 7.1.1 Form of an expression
93 - 7.1.2 Intrinsic operations
94 - 7.1.3 Defined operations
94 - 7.1.4 Data type, type parameters, and shape of an expression
96 - 7.1.5 Conformability rules for intrinsic operations
96 - 7.1.6 Scalar and array expressions
98 - 7.1.7 Evaluation of operations
102 - 7.2 Interpretation of intrinsic operations
102 - 7.2.1 Numeric intrinsic operations
103 - 7.2.2 Character intrinsic operation
104 - 7.2.3 Relational intrinsic operations
105 - 7.2.4 Logical intrinsic operations
105 - 7.3 Interpretation of defined operations
105 - 7.3.1 Unary defined operation
106 - 7.3.2 Binary defined operation
106 - 7.4 Precedence of operators
108 - 7.5 Assignment
108 - 7.5.1 Assignment statement
111 - 7.5.2 Pointer assignment
111 - 7.5.3 Masked array assignment-WHERE
114 - Section 8 : Execution control
114 - 8.1 Executable constructs containing blocks
114 - 8.1.1 Rules governing blocks
115 - 8.1.2 IF construct
116 - 8.1.3 CASE construct
119 - 8.1.4 DO construct
126 - 8.2 Branching
126 - 8.2.1 Statement labels
126 - 8.2.2 GO TO statement
126 - 8.2.3 Computed GO TO statement
126 - 8.2.4 ASSIGN and assigned GO TO statement
127 - 8.2.5 Arithmetic IF statement
127 - 8.3 CONTINUE statement
127 - 8.4 STOP statement
127 - 8.5 PAUSE statement
128 - Section 9 : Input/output statements
128 - 9.1 Records
128 - 9.1.1 Formatted record
128 - 9.1.2 Unformatted record
129 - 9.1.3 Endfile record
129 - 9.2 Files
129 - 9.2.1 External files
131 - 9.2.2 Internal files
132 - 9.3 File connection
133 - 9.3.1 Unit existence
133 - 9.3.2 Connection of a file to a unit
134 - 9.3.3 Preconnection
134 - 9.3.4 The OPEN statement
137 - 9.3.5 The CLOSE statement
138 - 9.4 Data transfer statements
138 - 9.4.1 Control information list
142 - 9.4.2 Data transfer input/output list
143 - 9.4.3 Error, end-of-record, and end-of-file conditions
144 - 9.4.4 Execution of a data transfer input/output statement
147 - 9.4.5 Printing of formatted records
147 - 9.4.6 Termination of data transfer statements
147 - 9.5 File positioning statements
148 - 9.5.1 BACKSPACE statement
148 - 9.5.2 ENDFlLE statement
148 - 9.5.3 REWIND statement
149 - 9.6 File inquiry
149 - 9.6.1 Inquiry specifiers
153 - 9.6.2 Restrictions on inquiry specifiers
153 - 9.6.3 Inquire by output list
153 - 9.7 Restrictions on function references and list items
153 - 9.8 Restriction on input/output statements
154 - Section 10 : Input/output editing
154 - 10.1 Explicit format specification methods
154 - 10.1.1 FORMAT statement
154 - 10.1.2 Character format specification
155 - 10.2 Form of a format item list
155 - 10.2.1 Edit descriptors
156 - 10.2.2 Fields
156 - 10.3 Interaction between input/output list and format
157 - 10.4 Positioning by format control
158 - 10.5 Data edit descriptors
158 - 10.5.1 Numeric editing
162 - 10.5.2 Logical editing
163 - 10.5.3 Character editing
163 - 10.5.4 Generalized editing
164 - 10.6 Control edit descriptors
164 - 10.6.1 Position editing
165 - 10.6.2 Slash editing
165 - 10.6.3 Colon editing
165 - 10.6.4 S, SP, and SS editing
166 - 10.6.5 P editing
166 - 10.6.6 BN and BZ editing
166 - 10.7 Character string edit descriptors
166 - 10.7.1 Character constant edit descriptor
167 - 10.7.2 H editing
167 - 10.8 List-directed formatting
167 - 10.8.1 List-directed input
169 - 10.8.2 List-directed output
170 - 10.9 Namelist formatting
170 - 10.9.1 Namelist input
173 - 10.9.2 Namelist output
175 - Section 11 : Program units
175 - 11.1 Mainprogram
175 - 11.1.1 Main program specifications
175 - 11.1.2 Main program executable part
176 - 11.1.3 Main program internal procedures
176 - 11.2 External subprograms
176 - 11.3 Modules
176 - 11.3.1 Module reference
177 - 11.3.2 The USE statement and use association
178 - 11.3.3 Examples of the use of modules
180 - 11.4 Block data program units
182 - Section 12 : Procedures
182 - 12.1 Procedure classifications
182 - 12.1.1 Procedure classification by reference
182 - 12.1.2 Procedure classification by means of definition
184 - 12.2 Characteristics of procedures
184 - 12.2.1 Characteristics of dummy arguments
185 - 12.2.2 Characteristics of function results
185 - 12.3 Procedure interface
185 - 12.3.1 Implicit and explicit interfaces
186 - 12.3.2 Specification of the procedure interface
190 - 12.4 Procedure reference
190 - 12.4.1 Actual argument list
193 - 12.4.2 Function reference
193 - 12.4.3 Elemental intrinsic function reference
193 - 12.4.4 Subroutine reference
194 - 12.4.5 Elemental intrinsic subroutine reference
194 - 12.5 Procedure definition
194 - 12.5.1 Intrinsic procedure definition
194 - 12.5.2 Procedures defined by subprograms
200 - 12.5.3 Definition of procedures by means other than Fortran
201 - 12.5.4 Statement function
202 - Section 13 : Intrinsic procedures
202 - 13.1 Intrinsic functions
202 - 13.2 Elemental intrinsic procedures
202 - 13.3 Positional arguments or argument keywords
203 - 13.4 Argument presence inquiry function
203 - 13.5 Numeric, mathematical, character, kind, logical, and bit procedures
203 - 13.5.1 Numeric functions
203 - 13.5.2 Mathematical functions
203 - 13.5.3 Character functions
203 - 13.5.4 Character inquiry function
203 - 13.5.5 Kind functions
203 - 13.5.6 Logical function
203 - 13.5.7 Bit manipulation and inquiry procedures
204 - 13.6 Transfer function
204 - 13.7 Numeric manipulation and inquiry functions
204 - 13.7.1 Models for integer and real data
205 - 13.7.2 Numeric inquiry functions
205 - 13.7.3 Floating point manipulation functions
205 - 13.8 Array intrinsic functions
205 - 13.8.1 The shape of array arguments
205 - 13.8.2 Mask arguments
205 - 13.8.3 Vector and matrix multiplication functions
206 - 13.8.4 Array reduction functions
206 - 13.8.5 Array inquiry functions
206 - 13.8.6 Array construction functions
206 - 13.8.7 Array reshape function
206 - 13.8.8 Array manipulation functions
206 - 13.8.9 Array location functions
206 - 13.8.10 Pointer association status inquiry functions
206 - 13.9 Intrinsic subroutines
207 - 13.9.1 Date and time subroutines
207 - 13.9.2 Pseudorandom numbers
207 - 13.9.3 Bit copy subroutine
207 - 13.10 Generic intrinsic functions
207 - 13.10.1 Argument presence inquiry function
207 - 13.10.2 Numeric functions
208 - 13.10.3 Mathematical functions
208 - 13.10.4 Character functions
208 - 13.10.5 Character inquiry function
209 - 13.10.6 Kind functions
209 - 13.10.7 Logical function
209 - 13.10.8 Numeric inquiry functions
209 - 13.10.9 Bit inquiry function
209 - 13.10.10 Bit manipulation functions
209 - 13.10.11 Transfer function
209 - 13.10.12 Floating.point manipulation functions
210 - 13.10.13 Vector and matrix multiply functions
210 - 13.10.14 Array reduction functions
210 - 13.10.15 Array inquiry functions
210 - 13.10.16 Array construction functions
210 - 13.10.17 Array reshape function
211 - 13.10.18 Array manipulation functions
211 - 13.10.19 Array location functions
211 - 13.10.20 Pointer association status inquiry function
211 - 13.11 Intrinsic subroutines
211 - 13.12 Specific names for intrinsic functions
213 - 13.13 Specifications of the intrinsic procedures
213 - 13.13.1 ABS (A)
214 - 13.13.2 ACHAR (I)
214 - 13.13.3 ACOS (X)
214 - 13.13.4 ADJUSTL (STRING)
214 - 13.13.5 ADJUSTR (STRING)
215 - 13.13.6 AIMAG (Z)
215 - 13.13.7 AINT (A, KIND)
215 - 13.13.8 ALL (MASK, DIM)
216 - 13.13.9 ALLOCATED (ARRAY)
216 - 13.13.10 ANINT (A, KIND)
216 - 13.13.11 ANY (MASK, DIM)
217 - 13.13.12 ASIN (X)
217 - 13.13.13 ASSOCIATED (POINTER, TARGET)
218 - 13.13.14 ATAN (X)
218 - 13.13.15 ATAN2 (Y, X)
219 - 13.13.16 BIT_SIZE (I)
219 - 13.13.17 BTEST (I, POS)
219 - 13.13.18 CEILING (A)
219 - 13.13.19 CHAR (I, KIND)
220 - 13.13.20 CMPLX (X, Y, KIND)
220 - 13.13.21 CONJG (Z)
220 - 13.13.22 COS (X)
221 - 13.13.23 COSH (X)
221 - 13.13.24 COUNT (MASK, DIM)
222 - 13.13.25 CSHIFT (ARRAY, SHIFT, DIM)
222 - 13.13.26 DATE_AND_TIME (DATE, TIME, ZONE, VALUES)
224 - 13.13.27 DBLE (A)
224 - 13.13.28 DIGITS (X)
224 - 13.13.29 DIM (X, Y)
224 - 13.13.30 DOT_PRODUCT (VECTOR_A, VECTOR_B)
225 - 13.13.31 DPROD (X, Y)
225 - 13.13.32 EOSHIFT (ARRAY, SHIFT, BOUNDARY, DIM)
226 - 13.13.33 EPSILON (X)
227 - 13.13.34 EXP (X)
227 - 13.13.35 EXPONENT (X)
227 - 13.13.36 FLOOR (A)
227 - 13.13.37 FRACTlON (X)
228 - 13.13.38 HUGE (X)
228 - 13.13.39 IACHAR (C)
228 - 13.13.40 IAND (I, J)
229 - 13.13.41 IBCLR (I, POS)
229 - 13.13.42 IBITS (1, POS, LEN)
229 - 13.13.43 IBSET (I, POS)
230 - 13.13.44 ICHAR (C)
230 - 13.13.45 IEOR (I, J)
230 - 13.13.46 INDEX (STRING, SUBSTRING, BACK)
231 - 13.13.47 INT (A, KIND)
231 - 13.13.48 IOR (I, J)
232 - 13.13.49 ISHFT (I, SHIFT)
232 - 13.13.50 ISHFTC (I, SHIFT, SIZE)
233 - 13.13.51 KIND (X)
233 - 13.13.52 LBOUND (ARRAY, DIM)
233 - 13.13.53 LEN (STRING)
234 - 13.13.54 LEN_TRIM (STRING)
234 - 13.13.55 LGE (STRING_A, STRlNG_B)
234 - 13.13.56 LGT (STRING_A STRING_B)
235 - 13.13.57 LLE (STRING_A, STRING_B)
235 - 13.13.58 LLT (STRING_A, STRlNG_B)
235 - 13.13.59 LOG (X)
236 - 13.13.60 LOG10 (X)
236 - 13.13.61 LOGICAL (L, KIND)
236 - 13.13.62 MATMUL (MATRlX_A, MATRlX_B)
237 - 13.13.63 MAX (A1, A2, A3, ...)
237 - 13.13.64 MAXEXPONENT (X)
238 - 13.13.65 MAXLOC (ARRAY, MASK)
238 - 13.13.66 MAXVAL (ARRAY, DIM, MASK)
239 - 13.13.67 MERGE (TSOURCE, FSOURCE, MASK)
240 - 13.13.68 MIN (A1, A2, A3, ...)
240 - 13.13.69 MINEXPONENT (X)
240 - 13.13.70 MINLOC (ARRAY, MASK)
241 - 13.13.71 MINVAL (ARRAY, DIM, MASK)
242 - 13.13.72 MOD (A, P)
242 - 13.13.73 MODULO (A, P)
243 - 13.13.74 MVBITS (FROM, FROMPOS, LEN, TO, TOPOS)
243 - 13.13.75 NEAREST (X, S)
243 - 13.13.76 NINT (A, KIND)
244 - 13.13.77 NOT (I)
244 - 13.13.78 PACK (ARRAY, MASK, VECTOR)
245 - 13.13.79 PRECISION (X)
245 - 13.13.80 PRESENT (A)
245 - 13.13.81 PRODUCT (ARRAY, DIM, MASK)
246 - 13.13.82 RADIX (X)
246 - 13.13.83 RANDOM_NUMBER (HARVEST)
246 - 13.13.84 RANDOM_SEED (SIZE, PUT, GET)
247 - 13.13.85 RANGE (X)
247 - 13.13.86 REAL (A, KIND)
248 - 13.13.87 REPEAT (STRING, NCOPIES)
248 - 13.13.88 RESHAPE (SOURCE, SHAPE, PAD, ORDER)
249 - 13.13.89 RRSPACING (X)
249 - 13.13.90 SCALE (X, I)
249 - 13.13.91 SCAN (STRING, SET, BACK)
250 - 13.13.92 SELECTED_INT_KIND (R)
250 - 13.13.93 SELECTED_REAL_KIND (P, R)
251 - 13.13.94 SET_EXPONENT (X, I)
251 - 13.13.95 SHAPE (SOURCE)
251 - 13.13.96 SIGN (A, B)
252 - 13.13.97 SIN (X)
252 - 13.13.98 SINH (X)
252 - 13.13.99 SIZE (ARRAY, DIM)
253 - 13.13.100 SPACING (X)
253 - 13.13.101 SPREAD (SOURCE, DIM, NCOPIES)
253 - 13.13.102 SQRT (X)
254 - 13.13.103 SUM (ARRAY, DIM, MASK)
254 - 13.13.104 SYSTEM_CLOCK (COUNT, COUNT_RATE, COUNT_MAX)
255 - 13.13.105 TAN (X)
255 - 13.13.106 TANH (X)
255 - 13.13.107 TINY(X)
256 - 13.13.108 TRANSFER (SOURCE, MOLD, SIZE)
257 - 13.13.109 TRANSPOSE (MATRIX)
257 - 13.13.110 TRIM (STRING)
257 - 13.13.111 UBOUND (ARRAY, DIM)
258 - 13.13.112 UNPACK (VECTOR, MASK, FIELD)
258 - 13.13.113 VERIFY (STRING, SET, BACK)
260 - Section 14 : Scope, association, and definition
260 - 14.1 Scope of names
260 - 14.1.1 Global entities
260 - 14.1.2 Local entities
264 - 14.1.3 Statement entities
264 - 14.2 Scope of labels
264 - 14.3 Scope of external input/output units
264 - 14.4 Scope of operators
264 - 14.5 Scope of the assignment symbol
264 - 14.6 Association
265 - 14.6.1 Name association
265 - 14.6.2 Pointer association
266 - 14.6.3 Storage association
268 - 14.7 Definition and undefinition of variables
268 - 14.7.1 Definition of objects and subobjects
268 - 14.7.2 Variables that are always defined
268 - 14.7.3 Variables that are initially defined
269 - 14.7.4 Variables that are initially undefined
269 - 14.7.5 Events that cause variables to become defined
270 - 14.7.6 Events that cause variables to become undefined
271 - 14.8 Allocation status
273 - Annex A - Glossary of technical terms
281 - Annex B - Decremental features
281 - B.1 Deleted features
281 - B.2 Obsolescent features
281 - B.2.1 Alternate return
282 - B.2.2 PAUSE statement
282 - B.2.3 ASSIGN and assigned GO TO statements
282 - B.2.4 Assigned FORMAT specifiers
282 - B.2.5 H editing
283 - Annex C - Section notes
283 - C.1 Section 1 notes
283 - C.1.1 Conformance (1.4)
283 - C.2 Section 2 notes
283 - C.2.1 Keywords
283 - C.3 Section 3 notes
283 - C.3.1 Representable characters (3.1.5)
283 - C.3.2 Comment lines (3.3.1.1, 3.3.2.1)
284 - C.3.3 Statement labels (3.2.5)
284 - C.3.4 Source form (3.3)
284 - C.4 Section 4 notes
284 - C.4.1 Zero (4.3.1)
284 - C.4.2 Characters (4.2)
285 - C.4.3 Intrinsic and derived data types (4.3, 4.4)
285 - C.4.4 Selection of the approximation methods
286 - C.4.5 Storage of derived types (4.4.1)
286 - C.4.6 Pointers
287 - C.5 Section 5 notes
287 - C.5.1 Type declaration statements (5.1)
287 - C.5.2 The POINTER attribute (5.1.2.7)
288 - C.5.3 The TARGET attribute (5.1.2.8)
289 - C.5.4 PARAMETER statements and IMPLICIT NONE (5.2.10, 5.3)
289 - C.5.5 EQUIVALENCE statement extensions (5.5.1)
289 - C.5.6 COMMON statement extensions (5.5.2)
289 - C.6 Section 6 notes
289 - C.6.1 Substrings (6.1.1)
289 - C.6.2 Array element references (6.2.2)
289 - C.6.3 Structure components (6.1.2)
290 - C.6.4 Pointer allocation and association
291 - C.7 Section 7 notes
291 - C.7.1 Character assignment
291 - C.7.2 Evaluation of function references
291 - C.7.3 Pointers in expressions
292 - C.7.4 Pointers on the left side of an assignment
292 - C.8 Section 8 notes
292 - C.8.1 Loop control
293 - C.8.2 The CASE construct
293 - C.8.3 Examples of invalid DO constructs
293 - C.9 Section 9 notes
293 - C.9.1 Input/output records (9.1)
294 - C.9.2 Files (9.2)
294 - C.9.2.1 File connection (9.3)
294 - C.9.2.2 File existence (9.2.1.1)
294 - C.9.2.3 File names (9.3.4.1)
294 - C.9.2.4 File access (9.2.1.2)
295 - C.9.2.5 Nonadvancing input/output (9.2.1.3.1)
295 - C.9.3 OPEN statement (9.3.4)
297 - C.9.4 Connection properties (9.3.2)
298 - C.9.5 CLOSE statement (9.3.5)
299 - C.9.6 INQUIRE statement (9.6)
299 - C.9.7 Keyword specifiers
299 - C.9.8 Format specifications (9.4.1.1)
299 - C.9.9 Unformatted in put/output (9.4.4.4.1)
299 - C.9.10 Input/output restrictions
299 - C.9.11 Pointers in an input/output list
299 - C.9.12 Derived type objects in an input/output list (9.4.2)
300 - C.10 Section 10 notes
300 - C.10.1 Character constant format specification (10.1.2, 10.7.1)
300 - C.10.2 T edit descriptor (10.6.1.1)
300 - C.10.3 Length of formatted records
300 - C.10.4 Number of records (10.3, 10.4, 10.6.2)
301 - C.10.5 List-directed input/output (10.8)
301 - C.10.6 List-directed input (10.8.1)
301 - C.10.7 Namelist list items for character input (10.9.1.3)
301 - C.10.8 Namelist output records (10.9.2.2)
302 - C.11 Section 11 notes
302 - C.11.1 Main program and block data program unit (11.1, 11.4)
302 - C.11.2 Dependent compilation (11.3)
304 - C.11.3 Pointers in modules
304 - C.11.4 Example of a module (11.3)
307 - C.12 Section 12 notes
307 - C.12.1 Examples of host association (12.1.2.2.1)
308 - C.12.2 External procedures (12.3.2.2)
308 - C.12.3 Procedures defined by means other than Fortran (12.5.3)
309 - C.12.4 Procedure interfaces (12.3)
309 - C.12.5 Argument association and evaluation (12.4.1)
310 - C.12.6 Argument intent specification (12.4.1.1)
310 - C.12.7 Dummy argument restrictions (12.5.2.9)
310 - C.12.8 Pointers and targets as arguments
311 - C.12.9 The ASSOCIATED function (13.13.13)
311 - C.12.10 Internal procedure restrictions
312 - C.12.11 The result variable (12.5.2.2)
312 - C.13 Section 13 notes
312 - C.13.1 Summary of features
314 - C.13.2 Examples
318 - C.13.3 FORmula TRANslation and array processing
319 - C.13.4 Sum of squared residuals
319 - C.13.5 Vector norms: infinity-norm and one-norm
319 - C.13.6 Matrix norms: infinity-norm and one-norm
319 - C.13.7 Logical queries
320 - C.13.8 Parallel computations
320 - C.13.9 Example of element-by-element computation
321 - C.13.10 Bit manipulation and inquiry procedures
321 - C.14 Section 14 notes
321 - C.14.1 Storage association of zero-sized objects
322 - Annex D - Syntax rules
322 - D.1 Syntax rules and constraints
322 - D.1.1 Overview
322 - D.1.2 Fortran terms and concepts
325 - D.1.3 Characters, lexical tokens, and source form
326 - D.1.4 Intrinsic and derived data types
329 - D.1.5 Data object declarations and specifications
334 - D.1.6 Use of data objects
336 - D.1.7 Expressions and assignment
339 - D.1.8 Execution control
342 - D.1.9 Input/output statements
345 - D.1.10 Input/output editing
347 - D.1.11 Program units
348 - D.1.12 Procedures
350 - D.1.13 Intrinsic procedures
351 - D.1.14 Scope, association, and definition
351 - D.2 Cross references
351 - D.2.1 Nonterminal symbols that are defined
357 - D.2.2 Nonterminal symbols that are not defined
358 - D.2.3 Terminal symbols
363 - Annex E - Permuted index for headings
382 - Annex F - Index

Specifies the form and establishes the interpretation of programs in the Fortran language and consists of the specification of the language. This Standard is identical with and has been reproduced from ISO/IEC 1539:1991.

This International Standard specifies the form and establishes the interpretation of programs expressed in the Fortran language. The purpose of this International Standard is to promote portability, reliability, maintainability, and efficient execution of Fortran programs for use on a variety of computing systems.

First published as AS 1486-1973.
Second edition 1983.
Jointly revised and designated as Joint Standard AS/NZS 1486:1993.