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iso_c_binding (changes)

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Description

iso_c_binding is a standard intrinsic module which defines named constants, types, and procedures for C interoperability.

Standard

Fortran 2003 and later

Intrinsic Procedures

The following intrinsic procedures are provided by the module; their definition can be found in the section Intrinsic Procedures of this manual.

• c_associated
• c_f_pointer
• c_f_procpointer
• c_funloc
• c_loc
• c_sizeof

Named Constants

The iso_c_binding module also provides the following named constants of type default integer, which can be used as kind type parameters.

Fortran Type	Named constant	C type	Note
integer	c_int	int
integer	c_short	short int
integer	c_long	long int
integer	c_long_long	long long int
integer	c_signed_char	signed char/unsigned char
integer	c_size_t	size_t
integer	c_int8_t	int8_t
integer	c_int16_t	int16_t
integer	c_int32_t	int32_t
integer	c_int64_t	int64_t
integer	c_int_least8_t	int_least8_t
integer	c_int_least16_t	int_least16_t
integer	c_int_least32_t	int_least32_t
integer	c_int_least64_t	int_least64_t
integer	c_int_fast8_t	int_fast8_t
integer	c_int_fast16_t	int_fast16_t
integer	c_int_fast32_t	int_fast32_t
integer	c_int_fast64_t	int_fast64_t
integer	c_intmax_t	intmax_t
integer	c_intptr_t	intptr_t
integer	c_ptrdiff_t	intptr_t	TS 29113
real	c_float	float
real	c_double	double
real	c_long_double	long double
complex	c_float_complex	float _Complex
complex	c_double_complex	double _Complex
complex	c_long_double_complex	long double _Complex
logical	c_bool	_Bool
character	c_char	char

Additionally, the following parameters of type character(kind=c_char) are defined.

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Name	C definition	Value
c_null_char	null character	'0円'
c_alert	alert	'\a'
c_backspace	backspace	'\b'
c_form_feed	form feed	'\f'
c_new_line	new line	'\'
c_carriage_return	carriage return	'\r'
c_horizontal_tab	horizontal tab	'\t'
c_vertical_tab	vertical tab	'\v'

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| c_carriage_return | carriage return | '\\r' | | c_horizontal_tab | horizontal tab | '\\t' | | c_vertical_tab | vertical tab | '\\v' |

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Moreover, the following two named constants are defined:

Name	Type
c_null_ptr	c_ptr
c_null_funptr	c_funptr

Both are equivalent to the value NULL in C.

Revised on March 2, 2023 16:43:18 by vmagnin (86.67.213.94) (4132 characters / 1.0 pages)

Edit | Back in time (2 revisions) | Hide changes | History | Views: Print | TeX | Source | Linked from: Code, Fortran 2008, c_associated, c_f_pointer, c_f_procpointer, c_funloc, c_loc, c_sizeof, 2009, C interoperability, Generating C Interfaces