Open Watcom FORTRAN 77 Language Reference

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Language Reference Example: PRINT 100, X, Y, Z 100 FORMAT( 3F10.5 ) PRINT ’( 3F10.5 )’, X, Y, Z The above gives two examples of the PRINT statement. In both cases, the format conversion is identical but it was specified in different ways. When executed, the effect of both PRINT statements is the same. Example: PRINT ’(1X,100A1)’, (’*’,I=1,J) The above example illustrates a technique for producing histograms using the implied DO-loop. Each time this statement is executed, a number of asterisks are printed, depending on the value of J. Notes: 1. The PRINT statement is implicitly a formatted output statement. 2. The unit number that is implicitly used in the PRINT statement is unit number 6. 3. If no output list is specified then the effect of the PRINT statement is to produce one or more records whose characters are all blanks. 4. FORTRAN 77 leaves the format of output in list-directed formatting to the discretion of Open Watcom FORTRAN 77. Hence other FORTRAN compilers may produce different results. If the format of output must be consistent from one compiler to the next then list-directed formatting should not be used. 5. An implication of point (6) above is that nesting of implied-DO lists is permitted. For example, the output list ( (A(I,J), B(I,J), J = 1, 5), I = 1, 10 ) may be broken down into the following components: A(I,J), B(I,J) (....dlist1...., J = 1, 5) ( .....dlist2..............., I = 1, 10 ) For more information on input/output, see the chapter entitled "Input/Output" on page 215. For more information on formatted input/output, see the chapter entitled "Format" on page 225. 120 PRINT Statement
FORTRAN Statements 2.67 PROGRAM Statement PROGRAM pgm where: pgm is the symbolic name of the main program. A PROGRAM statement is optional in an executable program. If it does appear, it must be the first statement in the main program. Example: PROGRAM CALC . . . CALL COMPUTE . . . END The main program can contain any Open Watcom FORTRAN 77 statement except a FUNCTION, SUBROUTINE, BLOCK DATA, RETURN or ENTRY statement. Note that a SAVE statement is allowed but has no effect in the main program. PROGRAM Statement 121
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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
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Language Reference 2.24 ELSE Statem
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Language Reference 2.26 END Stateme
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Language Reference 2.28 END BLOCK S
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Language Reference 2.30 ENDFILE Sta
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Language Reference 2.31 END GUESS S
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Language Reference 2.33 END LOOP St
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Language Reference 2.35 END SELECT
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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 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 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
Page 166 and 167: Language Reference 123.764 .4352344
Page 168 and 169: Language Reference Actually, holler
Page 170 and 171: Language Reference 158 Symbolic Con
Page 172 and 173: Language Reference [lo:] hi where:
Page 174 and 175: Language Reference 4.4 Classifying
Page 176 and 177: Language Reference 4.5 Classifying
Page 178 and 179: Language Reference Example: CHARACT
Page 180 and 181: 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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