Environments, Tables, And Troff Macros - fortran (7)
NAME
fortran(7f) - [FORTRAN] Fortran Example
SYNOPSIS
DESCRIPTION
abs (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Absolute value achar (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] returns a character in a specified position in the ASCII collating sequence acos (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Arccosine function acosh (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Inverse hyperbolic cosine function adjustl (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Left adjust a string adjustr (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Right adjust a string aimag (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Imaginary part of complex number aint (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Truncate to a whole number all (3fortran) - [FORTRAN:INTRINSIC:ARRAY REDUCTION] determines if all the values are true allocated (3fortran) - [FORTRAN:INTRINSIC:ARRAY INQUIRY] Status of an allocatable entity anint (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Nearest whole number any (3fortran) - [FORTRAN:INTRINSIC:ARRAY REDUCTION] determines if any of the values in the logical array are true. asin (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Arcsine function asinh (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Inverse hyperbolic sine function atan (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Arctangent function atan2 (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Arctangent function atanh (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Inverse hyperbolic tangent function associated (3fortran) - [FORTRAN:INTRINSIC] Status of a pointer or pointer/target pair atomic_add (3fortran) - [FORTRAN:INTRINSIC] Atomic ADD operation atomic_and (3fortran) - [FORTRAN:INTRINSIC:ATOMIC:BIT MANIPULATION] Atomic bitwise AND operation atomic_cas (3fortran) - [FORTRAN:INTRINSIC] Atomic compare and swap atomic_define (3fortran) - [FORTRAN:INTRINSIC] Setting a variable atomically atomic_fetch_add (3fortran) - [FORTRAN:INTRINSIC] Atomic ADD operation with prior fetch atomic_fetch_and (3fortran) - [FORTRAN:INTRINSIC:ATOMIC:BIT MANIPULATION] Atomic bitwise AND operation with prior fetch atomic_fetch_or (3fortran) - [FORTRAN:INTRINSIC:ATOMIC:BIT MANIPULATION] Atomic bitwise OR operation with prior fetch atomic_fetch_xor (3fortran) - [FORTRAN:INTRINSIC:ATOMIC:BIT MANIPULATION] Atomic bitwise XOR operation with prior fetch atomic_or (3fortran) - [FORTRAN:INTRINSIC:ATOMIC:BIT MANIPULATION] Atomic bitwise OR operation atomic_ref (3fortran) - [FORTRAN:INTRINSIC] Obtaining the value of a variable atomically atomic_xor (3fortran) - [FORTRAN:INTRINSIC:ATOMIC:BIT MANIPULATION] Atomic bitwise OR operation bessel_j0 (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Bessel function of the first kind of order 0 bessel_j1 (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Bessel function of the first kind of order 1 bessel_jn (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Bessel function of the first kind bessel_y0 (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Bessel function of the second kind of order 0 bessel_y1 (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Bessel function of the second kind of order 1 bessel_yn (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Bessel function of the second kind bge (3fortran) - [FORTRAN:INTRINSIC:BIT COMPARE] Bitwise greater than or equal to bgt (3fortran) - [FORTRAN:INTRINSIC:BIT COMPARE] Bitwise greater than bit_size (3fortran) - [FORTRAN:INTRINSIC:BIT INQUIRY] Bit size inquiry function ble (3fortran) - [FORTRAN:INTRINSIC:BIT COMPARE] Bitwise less than or equal to blt (3fortran) - [FORTRAN:INTRINSIC:BIT COMPARE] Bitwise less than btest (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Bit test function c_associated (3fortran) - [FORTRAN:INTRINSIC:ISO_C_BINDING] Status of a C pointer c_f_pointer (3fortran) - [FORTRAN:INTRINSIC:ISO_C_BINDING] Convert C into Fortran pointer c_f_procpointer (3fortran) - [FORTRAN:INTRINSIC:ISO_C_BINDING] Convert C into Fortran procedure pointer c_funloc (3fortran) - [FORTRAN:INTRINSIC:ISO_C_BINDING] Obtain the C address of a procedure c_loc (3fortran) - [FORTRAN:INTRINSIC:ISO_C_BINDING] Obtain the C address of an object c_sizeof (3fortran) - [FORTRAN:INTRINSIC:ISO_C_BINDING] Size in bytes of an expression ceiling (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Integer ceiling function char (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Character conversion function cmplx (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Complex conversion function co_broadcast (3fortran) - [FORTRAN:INTRINSIC:COLLECTIVE] Copy a value to all images the current set of images co_lbound (3fortran) - [FORTRAN:INTRINSIC:COLLECTIVE] Lower codimension bounds of an array co_max (3fortran) - [FORTRAN:INTRINSIC:COLLECTIVE] Maximal value on the current set of images co_min (3fortran) - [FORTRAN:INTRINSIC:COLLECTIVE] Minimal value on the current set of images co_reduce (3fortran) - [FORTRAN:INTRINSIC:COLLECTIVE] Reduction of values on the current set of images co_sum (3fortran) - [FORTRAN:INTRINSIC:COLLECTIVE] Sum of values on the current set of images co_ubound (3fortran) - [FORTRAN:INTRINSIC:COLLECTIVE] Upper codimension bounds of an array command_argument_count (3fortran) - [FORTRAN:INTRINSIC:SYSTEM ENVIRONMENT] Get number of command line arguments compiler_options (3fortran) - [FORTRAN:INTRINSIC] Options passed to the compiler compiler_version (3fortran) - [FORTRAN:INTRINSIC] Compiler version string conjg (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Complex conjugate function cos (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Cosine function cosh (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Hyperbolic cosine function count (3fortran) - [FORTRAN:INTRINSIC:ARRAY REDUCTION] Count function cpu_time (3fortran) - [FORTRAN:INTRINSIC:SYSTEM ENVIRONMENT] return CPU processor time in seconds cshift (3fortran) - [FORTRAN:INTRINSIC:TRANSFORMATIONAL FUNCTION] Circular shift elements of an array date_and_time (3fortran) - [FORTRAN:INTRINSIC:SYSTEM ENVIRONMENT] gets current time dble (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Double conversion function digits (3fortran) - [FORTRAN:INTRINSIC] Significant digits function dim (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Positive difference dot_product (3fortran) - [FORTRAN:INTRINSIC:TRANSFORMATIONAL FUNCTION] Dot product function dprod (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Double product function dshiftl (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] combines bits of arguments I and J dshiftr (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] combines bits of arguments I and J eoshift (3fortran) - [FORTRAN:INTRINSIC:TRANSFORMATIONAL FUNCTION] End-off shift elements of an array epsilon (3fortran) - [FORTRAN:INTRINSIC] Epsilon function erf (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Error function erfc (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Complementary error function erfc_scaled (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Error function event_query (3fortran) - [FORTRAN:INTRINSIC] Query whether a coarray event has occurred execute_command_line (3fortran) - [FORTRAN:INTRINSIC:SYSTEM ENVIRONMENT] Execute a shell command exp (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Exponential function exponent (3fortran) - [FORTRAN:INTRINSIC:MODEL_COMPONENTS] Exponent function extends_type_of (3fortran) - [FORTRAN:INTRINSIC] True if and only if the dynamic type of A is an extension of the dynamic type of... findloc (3fortran) - [FORTRAN:INTRINSIC] Location of the first element of ARRAY identified by MASK along dimension DIM having a... float (3fortran) - [FORTRAN:INTRINSIC] Convert integer to default real floor (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Integer floor function format (3fortran) - [FORTRAN:INTRINSIC:I/O] Format statement fraction (3fortran) - [FORTRAN:INTRINSIC:MODEL_COMPONENTS] Fractional part of the model representation gamma (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Gamma function get_command (3fortran) - [FORTRAN:INTRINSIC:SYSTEM ENVIRONMENT] Get the entire command line get_command_argument (3fortran) - [FORTRAN:INTRINSIC:SYSTEM ENVIRONMENT] Get command line arguments get_environment_variable (3fortran) - [FORTRAN:INTRINSIC:SYSTEM ENVIRONMENT] Get an environmental variable huge (3fortran) - [FORTRAN:INTRINSIC] Largest number of a kind hypot (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Euclidean distance function iachar (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Code in ASCII collating sequence iall (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Bitwise and of array elements iand (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Bitwise logical and iany (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Bitwise or of array elements ibclr (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Clear bit ibits (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Bit extraction ibset (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Set bit ichar (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Character-to-integer conversion function ieor (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Bitwise logical exclusive or image_index (3fortran) - [FORTRAN:INTRINSIC] Cosubscript to image index conversion index (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Position of a substring within a string int (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Convert to integer type ior (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Bitwise logical inclusive or iparity (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Bitwise exclusive or of array elements is_contiguous (3fortran) - [FORTRAN:INTRINSIC:ARRAY INQUIRY] test if object is contiguous is_iostat_end (3fortran) - [FORTRAN:INTRINSIC] Test for end-of-file value is_iostat_eor (3fortran) - [FORTRAN:INTRINSIC] Test for end-of-record value ishft (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Shift bits ishftc (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Shift bits circularly kind (3fortran) - [FORTRAN:INTRINSIC] Kind of an entity kracken (3) - [ARGUMENTS:M_kracken] crack command line options on Fortran programs, using "-KEYWORD VALUE" syntax lbound (3fortran) - [FORTRAN:INTRINSIC:ARRAY INQUIRY] Lower dimension bounds of an array leadz (3fortran) - [FORTRAN:INTRINSIC:BIT INQUIRY] Number of leading zero bits of an integer len (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Length of a character entity len_trim (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Length of a character entity without trailing blank characters lge (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Lexical greater than or equal lgt (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Lexical greater than lle (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Lexical less than or equal llt (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Lexical less than log (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Logarithm function log10 (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Base 10 logarithm function log_gamma (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Logarithm of the Gamma function logical (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Bitwise logical and maskl (3fortran) - [FORTRAN:INTRINSIC] Left justified mask maskr (3fortran) - [FORTRAN:INTRINSIC] Right justified mask matmul (3fortran) - [FORTRAN:INTRINSIC:TRANSFORMATIONAL FUNCTION] matrix multiplication max (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Maximum value of an argument list maxexponent (3fortran) - [FORTRAN:INTRINSIC] Maximum exponent of a real kind maxloc (3fortran) - [FORTRAN:INTRINSIC:ARRAY LOCATION] Location of the maximum value within an array maxval (3fortran) - [FORTRAN:INTRINSIC:ARRAY REDUCTION] determines the maximum value in an array or row merge (3fortran) - [FORTRAN:INTRINSIC:ARRAY CONSTRUCTION] Merge variables merge_bits (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Merge of bits under mask min (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Minimum value of an argument list minexponent (3fortran) - [FORTRAN:INTRINSIC] Minimum exponent of a real kind minloc (3fortran) - [FORTRAN:INTRINSIC:ARRAY LOCATION] Location of the minimum value within an array minval (3fortran) - [FORTRAN:INTRINSIC:ARRAY REDUCTION] Minimum value of an array mod (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Remainder function associate (7fortran) - [FORTRAN:EXECUTION CONTROL] associate construct allocate (7fortran) - [FORTRAN] The ALLOCATE statement dynamically creates pointer targets and allocatable variables. array_constructors (7fortran) - [FORTRAN] An array constructor can be used to create and assign values to rank-one arrays (and ar... backspace (7fortran) - [FORTRAN:FILE_POSITIONING] - backspace one record on specified I/O unit block (7fortran) - [FORTRAN:EXECUTION CONTROL] construct case (7fortran) - [FORTRAN:EXECUTION CONTROL] select a block based on the value of an expression (a case) continue (7fortran) - [FORTRAN:EXECUTION CONTROL] construct cycle (7fortran) - [FORTRAN:EXECUTION CONTROL] construct data (7fortran) - [FORTRAN] DATA statement deallocate (7fortran) - [FORTRAN:STATEMENT] causes allocated variables and targets to be deallocated do (7fortran) - [FORTRAN:EXECUTION CONTROL] construct endselect (7fortran) - [FORTRAN:EXECUTION CONTROL] select a block based on the value of an expression (a case) exit (7fortran) - [FORTRAN:EXECUTION CONTROL] statement flush (7fortran) - [FORTRAN:IO] flush I/O buffers of specified files fortran (7fortran) - [FORTRAN] Fortran Example fortran_continuation_line (7fortran) - [FORTRAN] Fortran Continuation Lines fortran_recursion (7fortran) - [FORTRAN] Examples of recursion free_source_form (7fortran) - [FORTRAN] syntax of free source form statements, comments, and continuation lines if (7fortran) - [FORTRAN:EXECUTION CONTROL] selects a block based on a sequence of logical expressions. implicit (7fortran) - [FORTRAN:STATEMENT] specify default type (if any) associated to a starting letter implied_do (7fortran) - [FORTRAN] documentation on usage of implied do in Fortran include (7fortran) - [FORTRAN] including source text initialize_arrays (7fortran) - [FORTRAN:FAQ] Initializing small 2D numeric arrays with array constructors inquire (7fortran) - [FORTRAN:FILE_INQUIRE] File inquiry statement intrinsics (7fortran) - [FORTRAN] intrinsic man(1) pages intrinsics_project (7fortran) - [FORTRAN] intrinsic man(1) pages iso_c_binding (7fortran) - [FORTRAN] standard intrinsic module which defines named constants, types, and procedures for C interoperability iso_fortran_env (7fortran) - [FORTRAN] standard intrinsic module provides public entities related to the Fortran environment namelist (7fortran) - [FORTRAN:STATEMENT] specify a group of data to be referred to by a single name in data input/output nullify (7fortran) - [FORTRAN:STATEMENT] causes pointers to be disassociated open (7fortran) - [FORTRAN:IO] Initiates or modifies a connection between an external file and a specified unit. pointers (7fortran) - [FORTRAN] Pointers and targets methods modulo (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Modulo function move_alloc (3fortran) - [FORTRAN:INTRINSIC] Move allocation from one object to another mvbits (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Move bits from one integer to another nearest (3fortran) - [FORTRAN:INTRINSIC:MODEL_COMPONENTS] Nearest representable number new_line (3fortran) - [FORTRAN:INTRINSIC] New line character nint (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Nearest whole number norm2 (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Euclidean vector norm not (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Logical negation notopen (3) - [M_io] Find a FUN/LUN (Fortran-unit-number) that is not in use null (3fortran) - [FORTRAN:INTRINSIC:TRANSFORMATIONAL FUNCTION] Function that returns an disassociated pointer num_images (3fortran) - [FORTRAN:INTRINSIC] Number of images pack (3fortran) - [FORTRAN:INTRINSIC:ARRAY CONSTRUCTION] Pack an array into an array of rank one parity (3fortran) - [FORTRAN:INTRINSIC:TRANSFORMATIONAL FUNCTION] Reduction with exclusive OR() popcnt (3fortran) - [FORTRAN:INTRINSIC:BIT INQUIRY] Number of bits set poppar (3fortran) - [FORTRAN:INTRINSIC:BIT INQUIRY] Parity of the number of bits set precision (3fortran) - [FORTRAN:INTRINSIC] Decimal precision of a real kind present (3fortran) - [FORTRAN:INTRINSIC] Determine whether an optional dummy argument is specified process_close (3) - [M_process] Fortran Module for calling process-related C functions from Fortran process_open_read (3) - [M_process] Fortran Module for calling process-related C functions from Fortran process_open_write (3) - [M_process] Fortran Module for calling process-related C functions from Fortran process_readline (3) - [M_process] Fortran Module for calling process-related C functions from Fortran process_writeline (3) - [M_process] Fortran Module for calling process-related C functions from Fortran product (3fortran) - [FORTRAN:INTRINSIC:ARRAY REDUCTION] Product of array elements protected (7fortran) - [FORTRAN:SPECIFICATION ATTRIBUTE] protect use associated module objects from change outside of the module pure (7fortran) - [FORTRAN:SPECIFICATION ATTRIBUTE] Pure procedures radix (3fortran) - [FORTRAN:INTRINSIC] Base of a model number random_number (3fortran) - [FORTRAN:INTRINSIC] Pseudo-random number random_seed (3fortran) - [FORTRAN:INTRINSIC] Initialize a pseudo-random number sequence range (3fortran) - [FORTRAN:INTRINSIC] Decimal exponent range of a real kind rank (3fortran) - [FORTRAN:INTRINSIC:ARRAY INQUIRY] Rank of a data object real (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Convert to real type redo (3) - [M_history] Fortran-based Input History Editor repeat (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Repeated string concatenation reshape (3fortran) - [FORTRAN:INTRINSIC:ARRAY RESHAPE] Function to reshape an array return (3fortran) - [fortran] completes execution of the instance of the subprogram in which it appears rewind (7fortran) - [FORTRAN:FILE_POSITIONING] rewind specified sequential access I/O unit rrspacing (3fortran) - [FORTRAN:INTRINSIC:MODEL_COMPONENTS] Reciprocal of the relative spacing same_type_as (3fortran) - [FORTRAN:INTRINSIC] Query dynamic types for equality save (7fortran) - [FORTRAN:STATEMENT:ATTRIBUTE] specifies that a local variable retains its status and value after a RETURN scale (3fortran) - [FORTRAN:INTRINSIC:MODEL_COMPONENTS] Scale a real value scan (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Scan a string for the presence of a set of characters scratch (7fortran) - [FORTRAN:OPEN] where scratch files are typically written by OPEN(3f) select (7fortran) - [FORTRAN:EXECUTION CONTROL] select a block based on the value of an expression (a case) select_type (3fortran) - [FORTRAN:EXECUTION_CONTROL] select_type selected_char_kind (3fortran) - [FORTRAN:INTRINSIC] Choose character kind selected_int_kind (3fortran) - [FORTRAN:INTRINSIC] Choose integer kind selected_real_kind (3fortran) - [FORTRAN:INTRINSIC] Choose real kind set_exponent (3fortran) - [FORTRAN:INTRINSIC:MODEL_COMPONENTS] Set the exponent of the model shape (3fortran) - [FORTRAN:INTRINSIC:ARRAY INQUIRY] Determine the shape of an array shifta (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] shift bits right with fill shiftl (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] shift bits left shiftr (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] shift bits right sign (3fortran) - [FORTRAN:INTRINSIC:NUMERIC] Sign copying function sign (7fortran) - [FORTRAN:IO] option to force optional plus sign on output values sin (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Sine function sinh (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Hyperbolic sine function size (3fortran) - [FORTRAN:INTRINSIC:ARRAY INQUIRY] Determine the size of an array sngl (3fortran) - [FORTRAN:INTRINSIC] Convert double precision real to default real spacing (3fortran) - [FORTRAN:INTRINSIC:MODEL_COMPONENTS] Smallest distance between two numbers of a given type spread (3fortran) - [FORTRAN:INTRINSIC:ARRAY CONSTRUCTION] Add a dimension to an array sqrt (3fortran) - [FORTRAN:INTRINSIC:MATHEMATICS] Square-root function stop (7fortran) - [FORTRAN:STATEMENT] initiates termination of execution storage_size (3fortran) - [FORTRAN:INTRINSIC:BIT INQUIRY] Storage size in bits sum (3fortran) - [FORTRAN:INTRINSIC:ARRAY REDUCTION] sum the elements of an array system_chdir (3) - [M_system] call chdir(3c) from Fortran to change working directory system_clock (3fortran) - [FORTRAN:INTRINSIC:SYSTEM ENVIRONMENT] Return numeric data from a real-time clock. system_getegid (3) - [M_system:QUERY] get the effective group ID (GID) of current process from Fortran by calling getegid(3c) system_getenv (3) - [M_system:ENVIRONMENT] get environment variable from Fortran by calling get_environment_variable(3f) system_geteuid (3) - [M_system:QUERY] get effective UID of current process from Fortran by calling geteuid(3c) system_getgid (3) - [M_system:QUERY] get the real group ID (GID) of current process from Fortran by calling getgid(3c) system_getpid (3) - [M_system:QUERY] get PID (process ID) of current process from Fortran by calling getpid(3c) system_getppid (3) - [M_system:QUERY] get parent process ID (PPID) of current process from Fortran by calling getppid(3c) system_getuid (3) - [M_system:QUERY] get real UID of current process from Fortran by calling getuid(3c) system_putenv (3) - [M_system:ENVIRONMENT] set environment variable from Fortran by calling putenv(3c) system_readline (3) - [M_readline] Call readline(3c) from Fortran system_uname (3) - [M_system] call a C wrapper that calls uname(3c) to get current system information from Fortran tan (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Tangent function tanh (3fortran) - [FORTRAN:INTRINSIC:TRIGONOMETRIC] Hyperbolic tangent function this_image (3fortran) - [FORTRAN:INTRINSIC] Cosubscript index of this image tiny (3fortran) - [FORTRAN:INTRINSIC] Smallest positive number of a real kind trailz (3fortran) - [FORTRAN:INTRINSIC:BIT INQUIRY] Number of trailing zero bits of an integer transfer (3fortran) - [FORTRAN:INTRINSIC:BIT MANIPULATION] Transfer bit patterns transpose (3fortran) - [FORTRAN:INTRINSIC:ARRAY MANIPULATION] Transpose an array of rank two trim (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Remove trailing blank characters of a string ubound (3fortran) - [FORTRAN:INTRINSIC:ARRAY INQUIRY] Upper dimension bounds of an array ufpp (1) - [DEVELOPER] pre-process FORTRAN source files ufpp_overview (7) - [DEVELOPER] a Fortran source code pre-processor unicode_example1 (1) - [FORTRAN] UNICODE example unpack (3fortran) - [FORTRAN:INTRINSIC:ARRAY CONSTRUCTION] Store the elements of a vector in an array of higher rank upper_quoted (3) - [M_strings:CASE] ! elemental function converts string to miniscule skipping strings quoted per Fortran syn... use (7fortran) - [FORTRAN] gives a program unit accessibility to public entities in a module. verify (3fortran) - [FORTRAN:INTRINSIC:CHARACTER] Scan a string for the absence of a set of characters where (7fortran) - [FORTRAN:ASSIGNMENT] masked array assignment
EXAMPLE
Sample
program demo_fortran implicit none character(len=*),parameter :: ident="@(#)example(1f): example program" integer :: bb integer :: i_myloop call sub1(10,bb) write(*,*)’BB=’,bb !----------------------------------------------------------------------- MYLOOP: do I_MYLOOP=1,10 ! DO loop cycle MYLOOP ! start next pass of loop exit MYLOOP ! go to next statement after corresponding ENDDO enddo MYLOOP !----------------------------------------------------------------------- block character(LEN=1) :: c select case (c) case (’a’ : ’j’) write(*,*) ’One of the first ten letters’ case (’l’ : ’p’, ’u’ : ’y’) write(*,*) ’One of l, m, n, o, p, u, v, w, x, y’ case (’z’, ’q’ : ’t’) WRITE(*,*) ’One of z, q, r, s, t’ case default write(*,*) ’Other characters, which may not be letters’ endselect endblock !----------------------------------------------------------------------- CHAR: block ! ALLOCATABLE CHARACTER ARRAY character(len=80),allocatable :: help_text(:) integer :: i help_text=[ & &’12345678901234567890123456789012345678901234567890123456789012345678901234567890’,& &’This is example help text for the example program ’,& &’The example program uses kracken(3f) for command line parsing. ’,& &’ ’,& &’ ’,& &’ ’,& &’ ’] WRITE(*,’(a)’)(help_text(i),i=1,size(help_text)) endblock CHAR !-----------------------------------------------------------------------contains
subroutine sub1(a,b,c) integer,intent(in) :: a integer,intent(out) :: b character(len=:),intent(out),allocatable,optional :: c b=2*a if(present(c))then c=’Hello World’ endif end subroutine sub1
integer function signum (n) !An integer signum function integer,intent(in) :: n select case (n) case (:-1) ; signum = -1 case (0) ; signum = 0 case (1:) ; signum = 1 end select end function signum
end program demo_fortran
| Nemo Release 3.1 | fortran (7) | February 23, 2025 |
