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Table 6-17: Miscellaneous FunctionsGenericNameLOCNULLReturn address ofargumentPurpose Lang Numberof ArgsAssign disassociatedstatusArgument TypeResult TypeF77 1 NUMERIC INTEGERF95 01 POINTERPOINTERPOINTER6.2 FORTRAN 77 and Fortran 90/95 IntrinsicsDescriptionsThis section contains descriptions of each FORTRAN 77 and Fortran 90/95 intrinsic supported bythe PGF77, PGF95 and PGHPF compilers. Intrinsics and subroutines are listed alphabetically.ABS 77Determine the absolute value of the supplied argument.SynopsisABS(A)ArgumentThe argument A must be of type integer, real, or complex.Return ValueThe return type for integer is integer, for real is real, and for complex is real.ACHAR 90Return the character in the ASCII collating position specified by the argument.SynopsisACHAR(I)192 Chapter 6
ArgumentThe argument I must be of type integer.Return ValueA single character.ACOS 77Return the arccosine of the specified value.SynopsisACOS(X)ArgumentsThe argument X must be a real value.Return ValueThe real value representing the arccosine in radians.ACOSD 77Return the arccosine (in degrees) of the specified value.SynopsisACOSD(X)ArgumentsThe argument X must be a real value.Return ValueThe real value representing the arccosine in degrees.ADJUSTL 90Adjust string to the left, removing all leading blanks and inserting trailing blanks.SynopsisADJUSTL(STR)Fortran Intrinsics 193
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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
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 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 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
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
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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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