FORTRAN Reference Manual

Contents
FORTRAN Reference Manual—528615-001
ii
2. Language Elements (continued)
2. Language Elements (continued)
Implicit and Explicit Typing 2-9
Data Storage—Standard Conformance 2-10
Constants 2-11
Arithmetic Constants 2-11
Logical Constants 2-13
Character Constants 2-13
Variables 2-14
Arrays 2-14
Dimensioning an Array 2-14
Array References 2-16
Array Size 2-17
Storage Order 2-17
Substrings 2-19
Records 2-20
Writing a RECORD Declaration 2-21
Referencing a RECORD Field 2-22
RECORD Storage 2-23
Equivalencing RECORDs 2-23
Equivalencing RECORD Fields 2-24
3. Expressions
Arithmetic Expressions 3-2
Evaluation of Arithmetic Expressions 3-3
Determination of Result Type 3-4
Character Expressions 3-6
Relational Expressions 3-7
Evaluation of Relational Expressions 3-8
Logical Expressions 3-9
Operator Precedence 3-11
4. Program Units
The Main Program and Subprograms 4-1
Communication Between Program Units 4-3
Function Subprograms 4-4
Assigning a Value to the Function Name 4-6
Subroutines 4-7
Subroutines With Alternate Return Specifiers 4-8
Saving Values Computed in Procedure Subprograms 4-9