Intel Fortran Language Reference - NCI National Facility

9 Intel Fortran Language Reference
Table 9-2 Categories of Intrinsic Functions
Category Subcategory Description
Miscellaneous
Manipulation
Reduction
Let you shift an array, transpose an array, or change the shape of an
array: CSHIFT, EOSHIFT, RESHAPE, TRANSPOSE
Perform operations on arrays. The functions "reduce" elements of a
whole array to produce a scalar result, or they can be applied to a
specific dimension of an array to produce a result array with a rank
reduced by one: ALL, ANY, COUNT, MAXVAL, MINVAL, PRODUCT
Do the following:
• Check for pointer association (ASSOCIATED)
• Return an address (BADDRESS)
• Return the size of a level of the memory cache (CACHESIZE)
• Check for end-of-file (EOF)
• Return error functions (ERF and ERFC)
• Return the class of a floating-point argument (FP_CLASS)
• Return a pointer to an actual argument list for a routine
(IARGPTR)
• Return the INTEGER KIND that will hold an address
(INT_PTR_KIND)
• Test for Not-a-Number values (ISNAN)
• Return the internal address of a storage item (LOC)
• Return a logical value of an argument (LOGICAL)
• Allocate memory (MALLOC)
• Return the upper 64 bits of a 128-bit unsigned result
(MULT_HIGH)
• Return a disassociated pointer (NULL)
• Check for argument presence (PRESENT)
• Convert a bit pattern (TRANSFER)
1. All of the numeric manipulation and many of the numeric inquiry functions are defined by the model sets for integers (“Model for Integer Data”)
and reals (“Model for Real Data”).
2. The value of the argument does not have to be defined.
3. For more information on bit functions, see “Bit Functions”.
4. The Intel Fortran processor character set is ASCII, so ACHAR = CHAR and IACHAR = ICHAR.
Table 9-3 summarizes the generic intrinsic functions and indicates whether they are elemental,
inquiry, or transformational functions. Optional arguments are shown within square brackets.
9-6