dm_c Module

Utility procedures for C interoperability.


Uses

  • module~~dm_c~~UsesGraph module~dm_c dm_c module~dm_kind dm_kind module~dm_c->module~dm_kind unix unix module~dm_c->unix iso_fortran_env iso_fortran_env module~dm_kind->iso_fortran_env

Used by

  • module~~dm_c~~UsedByGraph module~dm_c dm_c module~dm_crypto dm_crypto module~dm_crypto->module~dm_c module~dm_modbus dm_modbus module~dm_modbus->module~dm_c module~dmpack dmpack module~dmpack->module~dm_c module~dmpack->module~dm_crypto module~dmpack->module~dm_modbus proc~dm_db_log dm_db_log proc~dm_db_log->module~dm_c proc~dm_fifo_create dm_fifo_create proc~dm_fifo_create->module~dm_c proc~dm_fifo_open dm_fifo_open proc~dm_fifo_open->module~dm_c proc~dm_file_is_directory dm_file_is_directory proc~dm_file_is_directory->module~dm_c proc~dm_file_is_executable dm_file_is_executable proc~dm_file_is_executable->module~dm_c proc~dm_file_is_readable dm_file_is_readable proc~dm_file_is_readable->module~dm_c proc~dm_file_is_writeable dm_file_is_writeable proc~dm_file_is_writeable->module~dm_c proc~dm_file_status dm_file_status proc~dm_file_status->module~dm_c proc~dm_ftp_download dm_ftp_download proc~dm_ftp_download->module~dm_c proc~dm_ftp_upload dm_ftp_upload proc~dm_ftp_upload->module~dm_c proc~dm_mqueue_unlink dm_mqueue_unlink proc~dm_mqueue_unlink->module~dm_c proc~dm_pipe_open dm_pipe_open proc~dm_pipe_open->module~dm_c proc~dm_pipe_open2 dm_pipe_open2 proc~dm_pipe_open2->module~dm_c proc~dm_sem_open dm_sem_open proc~dm_sem_open->module~dm_c proc~dm_sem_unlink dm_sem_unlink proc~dm_sem_unlink->module~dm_c proc~dm_system_daemonize dm_system_daemonize proc~dm_system_daemonize->module~dm_c proc~dm_system_error_message dm_system_error_message proc~dm_system_error_message->module~dm_c proc~dm_system_uname dm_system_uname proc~dm_system_uname->module~dm_c proc~dm_tty_open dm_tty_open proc~dm_tty_open->module~dm_c proc~dm_tty_set_attributes dm_tty_set_attributes proc~dm_tty_set_attributes->module~dm_c

Interfaces

public interface dm_to_signed

Converts unsigned integer to signed integer.

  • public pure elemental function dm_uint16_to_int32(u) result(s)

    Converts unsigned 2-byte integer to signed 4-byte integer.

    Arguments

    Type IntentOptional Attributes Name
    integer(kind=u2), intent(in) :: u

    Unsigned integer.

    Return Value integer(kind=i4)

    Signed integer.

  • public pure elemental function dm_uint32_to_int64(u) result(s)

    Converts unsigned 4-byte integer to signed 8-byte integer.

    Arguments

    Type IntentOptional Attributes Name
    integer(kind=u4), intent(in) :: u

    Unsigned integer.

    Return Value integer(kind=i8)

    Signed integer.

public interface dm_to_unsigned

Converts signed integer to unsigned integer.

  • public pure elemental function dm_int32_to_uint16(s) result(u)

    Converts signed 4-byte integer to unsigned 2-byte integer.

    Arguments

    Type IntentOptional Attributes Name
    integer(kind=i4), intent(in) :: s

    Signed integer.

    Return Value integer(kind=u2)

    Unsigned integer.

  • public pure elemental function dm_int64_to_uint32(s) result(u)

    Converts signed 8-byte integer to unsigned 4-byte integer.

    Arguments

    Type IntentOptional Attributes Name
    integer(kind=i8), intent(in) :: s

    Signed integer.

    Return Value integer(kind=u4)

    Unsigned integer.


Functions

public pure elemental function dm_c_f_logical(c) result(f)

Converts C logical value to Fortran representation.

Arguments

Type IntentOptional Attributes Name
integer(kind=c_int), intent(in) :: c

Return Value logical

public pure elemental function dm_f_c_logical(f) result(c)

Converts Fortran logical value to C representation.

Arguments

Type IntentOptional Attributes Name
logical, intent(in) :: f

Return Value integer(kind=c_int)

public pure function dm_f_c_string(f) result(c)

Returns trimmed string with appended null-termination.

Arguments

Type IntentOptional Attributes Name
character(len=*), intent(in) :: f

Fortran string.

Return Value character(len=len_trim)

Null-terminated string.

public pure elemental function dm_int32_to_uint16(s) result(u)

Converts signed 4-byte integer to unsigned 2-byte integer.

Arguments

Type IntentOptional Attributes Name
integer(kind=i4), intent(in) :: s

Signed integer.

Return Value integer(kind=u2)

Unsigned integer.

public pure elemental function dm_int64_to_uint32(s) result(u)

Converts signed 8-byte integer to unsigned 4-byte integer.

Arguments

Type IntentOptional Attributes Name
integer(kind=i8), intent(in) :: s

Signed integer.

Return Value integer(kind=u4)

Unsigned integer.

public pure elemental function dm_uint16_to_int32(u) result(s)

Converts unsigned 2-byte integer to signed 4-byte integer.

Arguments

Type IntentOptional Attributes Name
integer(kind=u2), intent(in) :: u

Unsigned integer.

Return Value integer(kind=i4)

Signed integer.

public pure elemental function dm_uint32_to_int64(u) result(s)

Converts unsigned 4-byte integer to signed 8-byte integer.

Arguments

Type IntentOptional Attributes Name
integer(kind=u4), intent(in) :: u

Unsigned integer.

Return Value integer(kind=i8)

Signed integer.


Subroutines

public subroutine dm_c_f_string_characters(c, f)

Copies a C string, passed as a C char array, to a Fortran string.

Arguments

Type IntentOptional Attributes Name
character(kind=c_char, len=1), intent(inout) :: c(:)

C char array.
character(len=size), intent(out) :: f

Fortran string.

public subroutine dm_c_f_string_pointer(c, f)

Copies a C string, passed as a C pointer, to a Fortran string.

Arguments

Type IntentOptional Attributes Name
type(c_ptr), intent(in) :: c

C string pointer.
character(len=:), intent(out), allocatable :: f

Fortran string.