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Table 6-1: Numeric FunctionsGenericNameABSPurposeAbsoluteValueNumberof Args11111111SpecificNameIIABSJIABSKIABSABSDABSCABSCDABSArgument TypeNUMERICINTEGER*2INTEGER*4INTEGER*8REAL*4REAL*8COMPLEX*8COMPLEX*16Result TypeNUMERICINTEGER*2INTEGER*4INTEGER*8REAL*4REAL*8COMPLEX*8COMPLEX*16AIMAGImaginary Partof ComplexNumber11AIMAGDIMAGCOMPLEX*8COMPLEX*16REAL*4REAL*8AINT Truncation 11AINTDINTREAL*4REAL*8REAL*4REAL*8ANINTNearest WholeNumber11ANINTDNINTREAL*4REAL*8REAL*4REAL*8CEILINGNext WholeNumber12REALREAL, INTEGERINTEGERINTEGERCMPLXConvert toCOMPLEX*8122NUMERICINTEGER, INTEGERREAL, REALCOMPLEX*8COMPLEX*8COMPLEX*8CONJGComplexConjugate11CONJGDCONJGCOMPLEX*8COMPLEX*16COMPLEX*8COMPLEX*16174 Chapter 6
GenericNameDBLEDCMPLXDIMFLOORPurposeConvert toREAL*8Convert toCOMPLEX*16PositiveDifferencePreviousintegerNumberof Args1111111222222212IINT Truncation 1111ININTNearestInteger[a + .5 *sign(a)]11INT Truncation 111SpecificNameDFLOTIDFLOATDFLOTJDFLOTKDREALIIDIMJIDIMKIDIMDIMDDIMIINTIIFIXIIDINTININTIIDNNTJIFIXIDINTINT8 Truncation 11 KIFIXArgument TypeNUMERICINTEGER*2INTEGER*4INTEGER*4INTEGER*8COMPLEX*16NUMERICINTEGER, INTEGERREAL, REALINTEGER*2,INTEGER*2INTEGER*4,INTEGER*4INTEGER*8,INTEGER*8REAL*4, REAL*4REAL*8, REAL*8REALREAL, INTEGERNUMERICREAL*4REAL*4REAL*8REAL*4REAL*8NUMERICREAL*4REAL*8REAL*4REAL*4Result TypeREAL*8REAL*8REAL*8REAL*8REAL*8REAL*8COMPLEX*16COMPLEX*16COMPLEX*16INTEGER*2INTEGER*4INTEGER*8REAL*4REAL*8INTEGERINTEGERINTEGER*2INTEGER*2INTEGER*2INTEGER*2INTEGER*2INTEGER*2INTEGER*4INTEGER*4INTEGER*4INTEGER*8INTEGER*8Fortran Intrinsics 175
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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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Manipulating data using union decla
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Using the -I command-line option di
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ERR=errsFILE= finFORM=fmcharacter d
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ACCESSThe value of 'APPEND' will be
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• Case is not significant, unless
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The pointer-based variable does not
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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 162 and 163: On output, the B field descriptor t
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 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
Page 212 and 213: EXPONENT 90Return the exponent part
Page 214 and 215: SynopsisIAND(I, J)ArgumentsThe argu
Page 216 and 217: ArgumentThe arguments I and J must
Page 218 and 219: INT8 § 77Converts a real value to
Page 220 and 221: JINT § 77Converts a value to an in
Page 222 and 223: LEN 90Returns the length of the sup
Page 224 and 225: 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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