Open Watcom FORTRAN 77 Language Reference

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Language Reference a (d) len is an array name. is that part of the array declarator defining the dimensions of the array. is called the length specification and is an unsigned positive integer constant or an integer constant expression enclosed in parentheses whose value is 1 or 4. This form of the LOGICAL statement is a Open Watcom FORTRAN 77 extension to the FORTRAN 77 language. The length specification specifies the number of bytes of storage that will be allocated for the name appearing in the LOGICAL statement. The default length specification is 4. A length specification of 1 only changes the storage requirement from 4 bytes to 1 byte; the values of true and false can be represented regardless of the length specification. The length specification immediately following the word LOGICAL is the length specification for each entity in the statement not having its own length specification. If a length specification is not specified the default length specification is used. An entity with its own specification overrides the default length specification or the length specification immediately following the word LOGICAL. Note that for an array the length specification applies to each element of the array. Example: DIMENSION C(-5:5) LOGICAL A, B*1(10), C*1 LOGICAL*4 X In the previous example, X is declared to be a variable of type logical and occupying 4 bytes of storage, A is declared to be a variable of type logical and occupying 4 bytes of storage and B and C are declared to be arrays of type logical with each element of the array occupying 1 byte. 2.58.3 Extended LOGICAL Statement: Data Initialization LOGICAL[*len[,]] name [/cl/] [,name[/cl/]] ... where: name len cl is as described in the previous section. is as described in the previous section. is a list of the form: k [,k] ... k is one of the forms: c r*c (equivalent to r successive appearances of c) c is a constant or the symbolic name of a constant 104 LOGICAL Statement
FORTRAN Statements r is an unsigned positive integer constant or the symbolic name of a constant. This form of the LOGICAL statement is an extension to the FORTRAN 77 language. The rules for data initialization are the same as for the DATA statement. Example: LOGICAL A/.TRUE./, B(10)/10*.FALSE./ In the previous example, A is initialized with the logical constant .TRUE. and each element of the array B is initialized with the logical constant .FALSE.. LOGICAL Statement 105
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Open Watcom FORTRAN 77 Language Ref
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Preface Open Watcom FORTRAN 77 is a
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Table of Contents 2.25 ELSE IF Stat
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Table of Contents 3.4.10 Hexadecima
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Table of Contents 11.7 Editing ....
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Table of Contents 12.6.1 ENTRY Stat
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Language Reference 2
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Language Reference 1.3 Source Progr
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Language Reference Example: * From
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Language Reference 8 Order of FORTR
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Language Reference Statement 1 2 3
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Language Reference 2.3 ADMIT Statem
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Language Reference If there is a LO
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Language Reference 2.5 Statement La
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Language Reference 2.6 AT END State
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Language Reference The FORTRAN 77 s
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Language Reference 6. A named block
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Language Reference It is important
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Language Reference 2.11 CHARACTER S
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Language Reference If a symbolic na
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Language Reference Example: LOOP RE
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Language Reference Example: REAL A,
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Language Reference a (d) len is an
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Language Reference 2.15 CONTINUE St
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Language Reference 2.17 DATA Statem
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Language Reference 2. As an extensi
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Language Reference 2.18 DEALLOCATE
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Language Reference 2.19 DIMENSION S
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Language Reference Transfer of cont
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Language Reference Example: * Illeg
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Language Reference c r is a constan
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Language Reference c r is a constan
Page 66 and 67: Language Reference 2.24 ELSE Statem
Page 68 and 69: Language Reference 2.26 END Stateme
Page 70 and 71: Language Reference 2.28 END BLOCK S
Page 72 and 73: Language Reference 2.30 ENDFILE Sta
Page 74 and 75: Language Reference 2.31 END GUESS S
Page 76 and 77: Language Reference 2.33 END LOOP St
Page 78 and 79: Language Reference 2.35 END SELECT
Page 80 and 81: Language Reference 2.37 END UNION S
Page 82 and 83: Language Reference 2.39 ENTRY State
Page 84 and 85: Language Reference The following ex
Page 86 and 87: Language Reference 2.42 EXIT Statem
Page 88 and 89: Language Reference 2.44 FORMAT Stat
Page 90 and 91: Language Reference 2.45.2 Extended
Page 92 and 93: Language Reference 2.47 Computed GO
Page 94 and 95: Language Reference * Illegal use of
Page 96 and 97: Language Reference 2.50 Arithmetic
Page 98 and 99: Language Reference An example of an
Page 100 and 101: Language Reference IF( I .EQ. 10 )T
Page 102 and 103: Language Reference 2.53.3 IMPLICIT
Page 104 and 105: Language Reference 2.54 INCLUDE Sta
Page 106 and 107: Language Reference Example: LOGICAL
Page 108 and 109: Language Reference It is assigned t
Page 110 and 111: Language Reference 3. This specifie
Page 112 and 113: Language Reference a (d) len is an
Page 114 and 115: Language Reference 2.57 INTRINSIC S
Page 118 and 119: Language Reference 2.59 LOOP Statem
Page 120 and 121: Language Reference 2.61 NAMELIST St
Page 122 and 123: Language Reference Example: &PERSON
Page 124 and 125: Language Reference FILE = fin fin i
Page 126 and 127: Language Reference Notes: 1. If the
Page 128 and 129: Language Reference 2.64 PARAMETER S
Page 130 and 131: Language Reference 2.66 PRINT State
Page 132 and 133: Language Reference Example: PRINT 1
Page 134 and 135: Language Reference 2.68 QUIT Statem
Page 136 and 137: Language Reference 2. An internal f
Page 138 and 139: Language Reference Example: READ( 8
Page 140 and 141: Language Reference a (d) len is an
Page 142 and 143: Language Reference 2.71 RECORD Stat
Page 144 and 145: Language Reference 2.73 RETURN Stat
Page 146 and 147: Language Reference Notes: 1. The un
Page 148 and 149: Language Reference PROGRAM MAIN . .
Page 150 and 151: Language Reference Example: SELECT
Page 152 and 153: Language Reference 2.78 STRUCTURE S
Page 154 and 155: Language Reference 2.80 UNION State
Page 156 and 157: Language Reference 2.82 VOLATILE St
Page 158 and 159: Language Reference 2.84 WHILE State
Page 160 and 161: Language Reference REC = rn IOSTAT
Page 162 and 163: Language Reference 150
Page 164 and 165: Language Reference Example: DO10I=1
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Language Reference 123.764 .4352344
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Language Reference Actually, holler
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Language Reference 158 Symbolic Con
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Language Reference [lo:] hi where:
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Language Reference 4.4 Classifying
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Language Reference 4.5 Classifying
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Language Reference Example: CHARACT
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Language Reference STRUCTURE /PERSO
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Language Reference SUBROUTINE PRINT
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Language Reference 172 Unions
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Language Reference Operator Arithme
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Language Reference 7.1.3 Arithmetic
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Language Reference 7.2 Character Ex
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Language Reference where: relop is
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Language Reference Note that the op
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Language Reference 1. logical term
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Language Reference 186 Constant Exp
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Language Reference 8.3 Logical Assi
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Language Reference 8.6 Extended Ass
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Language Reference 192 Extended Ass
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Language Reference Examples follow
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Language Reference 9.4 DO - END DO
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Language Reference The next example
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Language Reference where: stmt is a
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Language Reference - the string -10
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Language Reference 9.12 GUESS-ADMIT
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Language Reference 9.13 QUIT QUIT [
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Language Reference Example: LOOP RE
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Language Reference READ statement t
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Language Reference 214 Notes on Str
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Language Reference 10.3 Records FOR
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Language Reference accessed directl
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Language Reference Example: WRITE(1
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Language Reference 5. Any character
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Language Reference 224 Printing of
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Language Reference Example: REAL X
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Language Reference 11.6 Nonrepeatab
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Language Reference Example: PRINT
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Language Reference Example: INTEGER
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Language Reference 11.7.10.4 E and
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Language Reference n Example: is 4
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Language Reference and is read into
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Language Reference 3. An input item
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Language Reference 1. Blanks are ne
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Language Reference e is an expressi
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Language Reference 12.3.2 Type Conv
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Language Reference 12.3.7 Type Conv
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Language Reference 12.3.13 Remainde
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Language Reference 12.3.18 Choosing
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Language Reference 12.3.24 Square R
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Language Reference 12.3.28 Sine Def
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Language Reference 12.3.33 Arccosin
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Language Reference 12.3.38 Gamma Fu
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Language Reference 12.3.45 Lexicall
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Language Reference Definition: Name
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Language Reference 12.3.53 Binary P
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Language Reference 12.3.58 Allocate
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Language Reference Example: INTEGER
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Language Reference 2. An array name
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Language Reference 5. A name that a
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Language Reference 12.8.1 Dummy Arg
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Language Reference Example: DIMENSI
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Language Reference 282 Subprogram A
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Appendices 284
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Appendices 10. The DOUBLE COMPLEX s
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Appendices 36. Non-character arrays
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Index AMAX1 253 AMIN0 254 $ AMIN1 2
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Index DATAN 260 dummy procedure 280
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Index AINT 250 ANINT 251 ASIN 259 H
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Index DREAL 249 IAND 264 DSIGN 252
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Index RETURN 32, 46, 56, 121, 132,
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Open Watcom FORTRAN 77 Language Reference

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