Open Watcom FORTRAN 77 Language Reference

Table of Contents
3.4.10 Hexadecimal Constants (Extension) .................................................................. 156
3.4.11 Octal Constants (Extension) .............................................................................. 156
3.5 Symbolic Constants ............................................................................................................ 157
4 Arrays ............................................................................................................................................... 159
4.1 Introduction ........................................................................................................................ 159
4.2 Properties of Arrays ........................................................................................................... 159
4.3 Array Elements .................................................................................................................. 160
4.4 Classifying Array Declarators by Dimension Declarator .................................................. 162
4.4.1 Constant Array Declarator ................................................................................... 162
4.4.2 Adjustable Array Declarator ................................................................................ 162
4.4.3 Assumed-size Array Declarator ........................................................................... 162
4.4.4 Allocatable Array Declarator ............................................................................... 163
4.5 Classifying Array Declarators by Array Name .................................................................. 164
4.5.1 Actual Array Declarator ...................................................................................... 164
4.5.2 Dummy Array Declarator .................................................................................... 164
4.6 Use of Array Names ........................................................................................................... 164
5 Character Substrings ......................................................................................................................... 165
5.1 Introduction ........................................................................................................................ 165
5.2 Substring Names ................................................................................................................ 165
5.3 Extensions .......................................................................................................................... 166
6 Structures, Unions and Records ....................................................................................................... 167
6.1 Structures and Records ....................................................................................................... 167
6.2 Arrays of Records .............................................................................................................. 168
6.3 Unions ................................................................................................................................ 169
7 Expressions ....................................................................................................................................... 173
7.1 Arithmetic Expressions ...................................................................................................... 173
7.1.1 Arithmetic Operators ........................................................................................... 173
7.1.2 Rules for Forming Standard Arithmetic Expressions .......................................... 174
7.1.3 Arithmetic Constant Expression .......................................................................... 176
7.1.4 Data Type of Arithmetic Expressions .................................................................. 177
7.2 Character Expressions ........................................................................................................ 178
7.2.1 Character Operators ............................................................................................. 178
7.2.2 Rules for Forming Character Expressions ........................................................... 178
7.2.3 Character Constant Expressions .......................................................................... 179
7.3 Relational Expressions ....................................................................................................... 179
7.3.1 Relational Operators ............................................................................................ 179
7.3.2 Form of a Relational Expression ......................................................................... 179
7.3.2.1 Arithmetic Relational Expressions ........................................................ 180
7.3.2.2 Character Relational Expressions .......................................................... 180
7.4 Logical Expressions ........................................................................................................... 180
7.4.1 Logical Operators ................................................................................................ 181
7.4.2 Rules for Forming Logical Expressions .............................................................. 183
7.4.3 Logical Constant Expressions .............................................................................. 184
7.5 Evaluating Expressions ...................................................................................................... 184
7.6 Constant Expressions ......................................................................................................... 185
8 Assignment Statements ..................................................................................................................... 187
8.1 Introduction ........................................................................................................................ 187
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