Fortran Intrinsics - Debugging with GDB

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15.4.6.3 Fortran Intrinsics

Fortran provides a large set of intrinsic procedures. gdb implements an incomplete subset of those procedures and their overloads. Some of these procedures take an optional KIND parameter, see Fortran Types.

ABS(a): Computes the absolute value of its argument a. Currently not supported for Complex arguments.
ALLOCATE(array): Returns whether array is allocated or not.
ASSOCIATED(pointer [, target]): Returns the association status of the pointer pointer or, if target is present, whether pointer is associated with the target target.
CEILING(a [, kind]): Computes the least integer greater than or equal to a. The optional parameter kind specifies the kind of the return type Integer(kind).
CMPLX(x [, y [, kind]]): Returns a complex number where x is converted to the real component. If y is present it is converted to the imaginary component. If y is not present then the imaginary component is set to 0.0 except if x itself is of Complex type. The optional parameter kind specifies the kind of the return type Complex(kind).
FLOOR(a [, kind]): Computes the greatest integer less than or equal to a. The optional parameter kind specifies the kind of the return type Integer(kind).
KIND(a): Returns the kind value of the argument a, see Fortran Types.
LBOUND(array [, dim [, kind]]): Returns the lower bounds of an array, or a single lower bound along the dim dimension if present. The optional parameter kind specifies the kind of the return type Integer(kind).
LOC(x): Returns the address of x as an Integer.
MOD(a, p): Computes the remainder of the division of a by p.
MODULO(a, p): Computes the a modulo p.
RANK(a): Returns the rank of a scalar or array (scalars have rank 0).
SHAPE(a): Returns the shape of a scalar or array (scalars have shape `()').
SIZE(array[, dim [, kind]]): Returns the extent of array along a specified dimension dim, or the total number of elements in array if dim is absent. The optional parameter kind specifies the kind of the return type Integer(kind).
UBOUND(array [, dim [, kind]]): Returns the upper bounds of an array, or a single upper bound along the dim dimension if present. The optional parameter kind specifies the kind of the return type Integer(kind).