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getloghostnmlstatputenvsymlnkttynam• The routines mclock and times depend on the existence of the C function times().• The routines dtime and etime are only available in a SYSVR4 environment. These routinesare not available in all environments simply because there is no standard mechanism toresolve the resolution of the value returned by the times() function.• There are several 3F routines (for example, fputc and fgetc) which perform I/O on alogical unit. These routines bypass normal Fortran I/O. If normal Fortran I/O is alsoperformed on a logical unit which appears in any of these routines, the results areunpredictable.abortTerminate abruptly and write memory image to core file.Synopsissubroutine abort()Descriptionabort cleans up the I/O buffers and then aborts, producing a core file in the current directory.accessDetermine access mode or existence of a file.Synopsisinteger function access(fil, mode)character*(*) filcharacter*(*) mode254 Chapter 7
DescriptionThe access function if the file, whose name is fil, for accessibility or existence as determined bymode.The mode argument may include, in any order and in any combination, one or more of:r test for read permissionw test for write permissionx test for execute permission(blank) test for existenceAn error code is returned if either the mode argument is illegal or if the file cannot be accessed inall of the specified modes. Zero is returned if the specified access is successful.alarmExecute a subroutine after a specified time.Synopsisinteger function alarm(time, proc)integer timeexternal procDescriptionThis routine establishes subroutine proc to be called after time seconds. If time is 0, the alarm isturned off and no routine will be called. The return value of alarm is the time remaining on the lastalarm.Bessel functionsThese functions calculate Bessel functions of the first and second kinds for real and doubleprecision arguments and integer orders.besj0besj1besjnbesy0besy13F Functions and VAX Subroutines 255
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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
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
Page 226 and 227: LSHIFT § 77Perform a logical shift
Page 228 and 229: If the MASK parameter is present, t
Page 230 and 231: MINLOC 90Return the position of the
Page 232 and 233: 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 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 284 and 285: 7.2.2 VAX/VMS System SubroutinesDAT
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
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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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