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On output, the B field descriptor transfers the binary values of the corresponding I/O list element,right-justified, to an external field that is w characters long. If the value to be transmitted does notfill the field, leading spaces are inserted; if the value is too large for the field, the entire field isfilled with asterisks. If m is present, the external field consists of at least m digits, and is zero-filledon the left if necessary. Note that if m is zero, and the internal representation is zero, the externalfield is blank-filled.5.5.2.3 D Format Control – Real Double Precision Data with ExponentThe D specifier transfers real values for double precision data with a representation for anexponent. The form of the D specifier is:Dw.dwhere w is the field width and d the number of digits in the fractional part.For input, the same conditions apply as for the F specifier described later in this chapter.For output, the scale factor k controls the decimal normalization. The scale factor k is the currentscale factor specified by the most recent P format control; if one hasn't been specified, the defaultis zero (0). If -d < k
For input the same conditions apply as for F editing. For output the scale factor controls thedecimal normalization as in the D specifier.5.5.2.5 EN Format ControlThe EN specifier transfers real values using engineering notation.ENw.dENw.dEewhere w is the field width, d the number of digits in the fractional part and e the number of digitsto be printed in the exponent part.On output, the number is in engineering notation where the exponent is divisible by 3 and theabsolute value of the significand is 1000 > |significand | ≥1. This format is the same as the Eformat descriptor, except for restrictions on the size of the exponent and the significand.5.5.2.6 ES Format ControlThe ES specifier transfers real values in scientific notation. The ES format specifier has two basicforms:ESw.dESw.dEewhere w is the field width, d the number of digits in the fractional part and e the number of digitsto be printed in the exponent part.For output, the scale factor controls the decimal normalization as in the D specifier.On output, the number is presented in scientific notation, where the absolute value of thesignificand is 10> | significand | ≥ 1.5.5.2.7 F Format Control - Real Single Precision DataThe F specifier transfers real values. The form of the F specifier is:Fw.dwhere w is the field width and d is the number of digits in the fractional part.On input, if the field does not contain a decimal digit or an exponent, right-hand d digits, withleading zeros, are interpreted as being the fractional part.On output, a leading zero is only produced to the left of the decimal point if the value is less thanone.Fortran Intrinsics 161
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While every precaution has been tak
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Table 6-18: HPF Intrinsics and Libr
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• ISO/IEC 1539 : 1991, Informatio
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non-printing characters, such as TA
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1 Language OverviewThis chapter des
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Table 1-1: Order of StatementsOPTIO
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1.3 Free Form FormattingUsing free
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A continuation line is indicated by
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The following examples are invalid
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Operators of equal rank are evaluat
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1.7.3 Relational ExpressionsA relat
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1.9 Assignment StatementsA Fortran
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defined in the character expression
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2 Fortran Data TypesEvery Fortran e
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Table 2-3: Data Type ExtensionsType
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[s]d 1 d 2 ...d n [ _ kind-paramete
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2.2.5 Complex ConstantsA complex co
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CHARACTER(LEN=20) FIRST, LAST, MIDD
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2.4.4 Character SubstringA characte
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• A constant is always either 32
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STRUCTURE [/structure_name/][field_
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RECORD /person/ population(2), me..
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BYTE items(12)END MAPEND UNIONEND S
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declarator, modifying its value dur
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90/95 This statement is either new
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ALLOCATE 90The ALLOCATE statement i
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DescriptionARRAY can be used in a s
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ExamplesBACKSPACE 4BACKSPACE ( UNIT
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ExamplesCALL CRASH! no argumentsCAL
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Note: The data type of a symbol may
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HPFExampleDIMENSION R(10)COMMON /HO
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ALL1is an allocatable COMMON block
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I = I + H..END SUBROUTINE YEND SUBR
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DEALLOCATE 77The DEALLOCATE stateme
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See AlsoREAD, PRINTDIMENSION 90The
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DO (non-block)DO label [,] index =
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DOUBLE COMPLEX § 77The DOUBLE COMP
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SyntaxIF logical expression THENsta
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cfbioserrsis an integer expression
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For example:END FILE(20)END FILE(UN
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e more than one ENTRY statement wit
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EQUIVALENCE 77The EQUIVALENCE state
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extrinsic-kind-keyword is the name
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if no list items are specified; in
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argumentis a symbolic name, startin
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ExampleslistASSIGN 50 TO KGO TO K(5
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IF (Block) 77The block IF statement
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INCLUDE § 77The INCLUDE statement
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FILE= finFORM= fmfin is a character
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DescriptionWhen an INQUIRE by file
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INTEGER, INTENT(OUT)::I1I1=R1END SU
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SUBROUTINE TRIG (X,F,Y)Y=F(X)RETURN
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Page 114 and 115: Using the -I command-line option di
Page 116 and 117: ERR=errsFILE= finFORM=fmcharacter d
Page 118 and 119: ACCESSThe value of 'APPEND' will be
Page 120 and 121: • Case is not significant, unless
Page 122 and 123: The pointer-based variable does not
Page 124 and 125: and is roughly equivalent tocharact
Page 126 and 127: .END MODULETypeNon-executableSee Al
Page 128 and 129: • Every item whose value is to be
Page 130 and 131: DescriptionYou create memory storag
Page 132 and 133: RETURN 77The RETURN statement cause
Page 134 and 135: line option). Dummy arguments, name
Page 136 and 137: STRUCTURE § 77The STRUCTURE statem
Page 138 and 139: argumentis a symbolic name, startin
Page 140 and 141: Syntax Derived Type DefinitionTYPE
Page 142 and 143: BYTE num_itemsBYTE items(12)END MAP
Page 144 and 145: ExamplesINTEGER SCORE(30)CHARACTER
Page 146 and 147: eal sumsum = 4h()accept sumand is r
Page 148 and 149: specified with the ":" character ra
Page 150 and 151: For example:SUBROUTINE YSUM1(M,B,C)
Page 152 and 153: 4.5 CM Fortran Extensions4.5.1 The
Page 154 and 155: same manner. Direct access files ar
Page 156 and 157: Table 5-1: OPEN SpecifiersSpecifier
Page 158 and 159: After data is transferred, the file
Page 160 and 161: • Repeatable editor commands whic
Page 164 and 165: 5.5.2.8 G Format ControlThe G forma
Page 166 and 167: 5.5.2.14 O Format Control Octal Val
Page 168 and 169: The X control specifies a number of
Page 170 and 171: 5.7 List-directed formattingList-di
Page 172 and 173: Data TypeINTEGER*4INTEGER*8LOGICAL*
Page 174 and 175: • The value may be constants as a
Page 176 and 177: Table 6-1: Numeric FunctionsGeneric
Page 178 and 179: GenericNameIZEXTPurposeZero-ExtendF
Page 180 and 181: GenericNameREALPurposeConvert toREA
Page 182 and 183: GenericNamePurposeNumberof ArgsSIN
Page 184 and 185: GenericNameIANDPurposeLogicalANDNum
Page 186 and 187: Table 6-5: Fortran 90/95 Bit Manipu
Page 188 and 189: Table 6-8: Fortran 90/95 Array Redu
Page 190 and 191: Table 6-10: Fortran 90/95 Array Con
Page 192 and 193: Generic Name Purpose Numberof ArgsP
Page 194 and 195: Table 6-17: Miscellaneous Functions
Page 196 and 197: ArgumentsThe argument STR is the st
Page 198 and 199: SynopsisALLOCATED(ARRAY)ArgumentThe
Page 200 and 201: SynopsisASIND(X)ArgumentThe argumen
Page 202 and 203: ArgumentThe argument X must be of t
Page 204 and 205: Return ValueReturns a complex numbe
Page 206 and 207: COUNT 90Return the number of true e
Page 208 and 209: VALUES(6)VALUES(7)VALUES(8)holds th
Page 210 and 211: Return ValueThe dot product. For VE
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EXPONENT 90Return the exponent part
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SynopsisIAND(I, J)ArgumentsThe argu
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ArgumentThe arguments I and J must
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INT8 § 77Converts a real value to
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JINT § 77Converts a value to an in
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LEN 90Returns the length of the sup
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LLT 90Test the supplied strings to
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LSHIFT § 77Perform a logical shift
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If the MASK parameter is present, t
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MINLOC 90Return the position of the
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MVBITS 90Copies a bit sequence from
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SynopsisNULL([PTR])ArgumentsThe opt
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Return ValueThe return value is the
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SynopsisREAL(A [,KIND])ArgumentsThe
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ArgumentsThe argument X is of type
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Return ValueThe result is an array
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SIZE 90Returns either the total num
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Return ValueThe return value is the
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TRANSFER 90Return a value that has
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VERIFY 90Verify that a character st
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IntrinsicIALL_SUFFIXIANYIANY_PREFIX
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Return ValueThe shifted array with
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getloghostnmlstatputenvsymlnkttynam
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esyndbesj0dbesj1dbesjndbesy0dbesy1d
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Descriptionctime converts a system
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fgetcGet character from a logical u
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Synopsisinteger function fseek(lu,
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Synopsisinteger function getc(ch)ch
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Synopsisinteger function getuid()De
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isattyIs logical unit a tty.Synopsi
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DescriptionReturn the value which i
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perrorPrint error message.Synopsiss
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DescriptionThe functions rand and i
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DescriptionReturn the index of the
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except lstat returns information ab
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ttynamGet name of a terminalSynopsi
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7.2.2 VAX/VMS System SubroutinesDAT
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destis an integer variable or array
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8 OpenMP Directives for FortranThe
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the parallel region redundantly. Th
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In the presence of an IF clause, th
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!$OMP SINGLE [Clauses]< Fortran cod
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By default, there is an implicit ba
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appear within a parallel region. It
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[!$OMP SECTION]< Fortran code block
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directive. When a common block that
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subroutine omp_unset_lock(integer_v
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9 HPF DirectivesHPF directives are
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ALIGN - REALIGNThe ALIGN directive
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See AlsoThe TEMPLATE and PROCESSORS
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Example!HPF$!HPF$!HPF$!HPF$REAL A(1
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See AlsoFor details on the PROCESSO
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TypeSpecificationSee AlsoFor detail
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IntrinsicGLOBAL_TO_LOCALGLOBAL_UBOU
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Return ValueIf the actual argument
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ArgumentsARRAY may be of any type;
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Return TypeThe result is of type de
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ArgumentsOptional argument. PROC.AR
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IndexABSTRACT_TO_PHYSICAL..........
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DATA ..............................
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GETLOG ............................
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EXP ...............................
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F specifier........................
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LOCAL_UNIDEX.......................
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OpenMP Fortran Directives .........
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DOWHILE ...........................
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FMT specifier......................
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