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7.2.2 VAX/VMS System SubroutinesDATEThe DATE subroutine returns a nine-byte string containing the ASCII representation of the currentdate. It has the form:CALL DATE(buf)where buf is a nine-byte variable, array, array element, or character substring. The date is returnedas a nine-byte ASCII character string of the form:dd-mmm-yyWhere:ddmmmyyis the two-digit day of the monthis the three-character abbreviation of the monthis the last two digits of the yearEXITThe EXIT subroutine causes program termination, closes all open files, and returns control to theoperating system. It has the form:CALL EXIT[(exit_status)]where:exit_statusis an optional integer argument used to specify the image exit value.GETARGThe GETARG subroutine returns the Nth command line argument in character variable ARG. ForN equal to zero, the name of the program is returned.SUBROUTINE GETARG(N, ARG)INTEGER*4 NCHARACTER*(*) ARG282 Chapter 7
IARGCThe IARGC subroutine returns the number of command line arguments following the programname.INTEGER*4 FUNCTION IARGC()IDATEThe IDATE subroutine returns three integer values representing the current month, day, and year.It has the form:CALL IDATE(IMONTH, IDAY, IYEAR)If the current date were October 9, 2004, the values of the integer variables upon return would be:IMONTH = 10IDAY = 9IYEAR = 04MVBITSThe MVBITS subroutine transfers a bit field from one storage location (source) to a field in asecond storage location (destination). MVBITS transfers a3 bits from positions a2 through (a2 +a3 - 1) of the source, src, to positions a5 through (a5 + a3 - 1) of the destination, dest. Other bitsof the destination location remain unchanged. The values of (a2 + a3) and (a5 + a3) must be lessthan or equal to 32 (less than or equal to 64 if the source or destination is INTEGER*8). It has theform:CALL MVBITS(src, a2, a3, dest, a5)Where:srca2a3is an integer variable or array element that represents the sourcelocation.is an integer expression that identifies the first position in the fieldtransferred from src.is an integer expression that identifies the length of the field transferredfrom src.3F Functions and VAX Subroutines 283
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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
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.END MODULETypeNon-executableSee Al
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• Every item whose value is to be
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DescriptionYou create memory storag
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RETURN 77The RETURN statement cause
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line option). Dummy arguments, name
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STRUCTURE § 77The STRUCTURE statem
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argumentis a symbolic name, startin
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Syntax Derived Type DefinitionTYPE
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BYTE num_itemsBYTE items(12)END MAP
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ExamplesINTEGER SCORE(30)CHARACTER
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eal sumsum = 4h()accept sumand is r
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specified with the ":" character ra
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For example:SUBROUTINE YSUM1(M,B,C)
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4.5 CM Fortran Extensions4.5.1 The
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same manner. Direct access files ar
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Table 5-1: OPEN SpecifiersSpecifier
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After data is transferred, the file
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• Repeatable editor commands whic
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On output, the B field descriptor t
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5.5.2.8 G Format ControlThe G forma
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5.5.2.14 O Format Control Octal Val
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The X control specifies a number of
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5.7 List-directed formattingList-di
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Data TypeINTEGER*4INTEGER*8LOGICAL*
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• The value may be constants as a
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Table 6-1: Numeric FunctionsGeneric
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GenericNameIZEXTPurposeZero-ExtendF
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GenericNameREALPurposeConvert toREA
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GenericNamePurposeNumberof ArgsSIN
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GenericNameIANDPurposeLogicalANDNum
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Table 6-5: Fortran 90/95 Bit Manipu
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Table 6-8: Fortran 90/95 Array Redu
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Table 6-10: Fortran 90/95 Array Con
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Generic Name Purpose Numberof ArgsP
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Table 6-17: Miscellaneous Functions
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ArgumentsThe argument STR is the st
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SynopsisALLOCATED(ARRAY)ArgumentThe
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SynopsisASIND(X)ArgumentThe argumen
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ArgumentThe argument X must be of t
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Return ValueReturns a complex numbe
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COUNT 90Return the number of true e
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VALUES(6)VALUES(7)VALUES(8)holds th
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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
Page 234 and 235: SynopsisNULL([PTR])ArgumentsThe opt
Page 236 and 237: Return ValueThe return value is the
Page 238 and 239: SynopsisREAL(A [,KIND])ArgumentsThe
Page 240 and 241: ArgumentsThe argument X is of type
Page 242 and 243: Return ValueThe result is an array
Page 244 and 245: SIZE 90Returns either the total num
Page 246 and 247: Return ValueThe return value is the
Page 248 and 249: TRANSFER 90Return a value that has
Page 250 and 251: VERIFY 90Verify that a character st
Page 252 and 253: IntrinsicIALL_SUFFIXIANYIANY_PREFIX
Page 254 and 255: Return ValueThe shifted array with
Page 256 and 257: getloghostnmlstatputenvsymlnkttynam
Page 258 and 259: esyndbesj0dbesj1dbesjndbesy0dbesy1d
Page 260 and 261: Descriptionctime converts a system
Page 262 and 263: fgetcGet character from a logical u
Page 264 and 265: Synopsisinteger function fseek(lu,
Page 266 and 267: Synopsisinteger function getc(ch)ch
Page 268 and 269: Synopsisinteger function getuid()De
Page 270 and 271: isattyIs logical unit a tty.Synopsi
Page 272 and 273: DescriptionReturn the value which i
Page 274 and 275: perrorPrint error message.Synopsiss
Page 276 and 277: DescriptionThe functions rand and i
Page 278 and 279: DescriptionReturn the index of the
Page 280 and 281: except lstat returns information ab
Page 282 and 283: ttynamGet name of a terminalSynopsi
Page 286 and 287: destis an integer variable or array
Page 289 and 290: 8 OpenMP Directives for FortranThe
Page 291 and 292: the parallel region redundantly. Th
Page 293 and 294: In the presence of an IF clause, th
Page 295 and 296: !$OMP SINGLE [Clauses]< Fortran cod
Page 297 and 298: By default, there is an implicit ba
Page 299 and 300: appear within a parallel region. It
Page 301 and 302: [!$OMP SECTION]< Fortran code block
Page 303 and 304: directive. When a common block that
Page 305 and 306: subroutine omp_unset_lock(integer_v
Page 307 and 308: 9 HPF DirectivesHPF directives are
Page 309 and 310: ALIGN - REALIGNThe ALIGN directive
Page 311 and 312: See AlsoThe TEMPLATE and PROCESSORS
Page 313 and 314: Example!HPF$!HPF$!HPF$!HPF$REAL A(1
Page 315 and 316: See AlsoFor details on the PROCESSO
Page 317: TypeSpecificationSee AlsoFor detail
Page 320 and 321: IntrinsicGLOBAL_TO_LOCALGLOBAL_UBOU
Page 322 and 323: Return ValueIf the actual argument
Page 324 and 325: ArgumentsARRAY may be of any type;
Page 326 and 327: Return TypeThe result is of type de
Page 328 and 329: ArgumentsOptional argument. PROC.AR
Page 331 and 332: IndexABSTRACT_TO_PHYSICAL..........
Page 333 and 334: 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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