mirror of https://github.com/ecmwf/eccodes.git
125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
/*
|
|
* (C) Copyright 2005- ECMWF.
|
|
*
|
|
* This software is licensed under the terms of the Apache Licence Version 2.0
|
|
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
|
|
*
|
|
* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
|
|
* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
|
|
*/
|
|
|
|
#include "grib_api_internal.h"
|
|
|
|
/*
|
|
This is used by make_class.pl
|
|
|
|
START_CLASS_DEF
|
|
CLASS = expression
|
|
IMPLEMENTS = destroy
|
|
IMPLEMENTS = native_type
|
|
IMPLEMENTS = evaluate_long
|
|
IMPLEMENTS = evaluate_double
|
|
IMPLEMENTS = print
|
|
IMPLEMENTS = add_dependency
|
|
END_CLASS_DEF
|
|
|
|
*/
|
|
/* START_CLASS_IMP */
|
|
|
|
/*
|
|
|
|
Don't edit anything between START_CLASS_IMP and END_CLASS_IMP
|
|
Instead edit values between START_CLASS_DEF and END_CLASS_DEF
|
|
or edit "expression.class" and rerun ./make_class.pl
|
|
|
|
*/
|
|
|
|
typedef const char* string; /* to keep make_class.pl happy */
|
|
|
|
|
|
static void init_class(grib_expression_class*);
|
|
|
|
static void destroy(grib_context*, grib_expression* e);
|
|
|
|
static void print(grib_context*, grib_expression*, grib_handle*);
|
|
static void add_dependency(grib_expression* e, grib_accessor* observer);
|
|
|
|
static int native_type(grib_expression*, grib_handle*);
|
|
|
|
static int evaluate_long(grib_expression*, grib_handle*, long*);
|
|
static int evaluate_double(grib_expression*, grib_handle*, double*);
|
|
|
|
typedef struct grib_expression_true
|
|
{
|
|
grib_expression base;
|
|
/* Members defined in true */
|
|
} grib_expression_true;
|
|
|
|
|
|
static grib_expression_class _grib_expression_class_true = {
|
|
0, /* super */
|
|
"true", /* name */
|
|
sizeof(grib_expression_true), /* size of instance */
|
|
0, /* inited */
|
|
&init_class, /* init_class */
|
|
0, /* constructor */
|
|
&destroy, /* destructor */
|
|
&print,
|
|
&add_dependency,
|
|
|
|
&native_type,
|
|
0,
|
|
|
|
&evaluate_long,
|
|
&evaluate_double,
|
|
0,
|
|
};
|
|
|
|
grib_expression_class* grib_expression_class_true = &_grib_expression_class_true;
|
|
|
|
|
|
static void init_class(grib_expression_class* c)
|
|
{
|
|
}
|
|
/* END_CLASS_IMP */
|
|
|
|
static int evaluate_long(grib_expression* g, grib_handle* h, long* lres)
|
|
{
|
|
*lres = 1;
|
|
return GRIB_SUCCESS;
|
|
}
|
|
|
|
static int evaluate_double(grib_expression* g, grib_handle* h, double* dres)
|
|
{
|
|
*dres = 1;
|
|
return GRIB_SUCCESS;
|
|
}
|
|
|
|
static void print(grib_context* c, grib_expression* g, grib_handle* f)
|
|
{
|
|
printf("true(");
|
|
printf(")");
|
|
}
|
|
|
|
static void destroy(grib_context* c, grib_expression* g)
|
|
{
|
|
}
|
|
|
|
|
|
static void add_dependency(grib_expression* g, grib_accessor* observer)
|
|
{
|
|
}
|
|
|
|
grib_expression* new_true_expression(grib_context* c)
|
|
{
|
|
grib_expression_true* e = (grib_expression_true*)grib_context_malloc_clear_persistent(c, sizeof(grib_expression_true));
|
|
e->base.cclass = grib_expression_class_true;
|
|
return (grib_expression*)e;
|
|
}
|
|
|
|
|
|
static int native_type(grib_expression* g, grib_handle* h)
|
|
{
|
|
return GRIB_TYPE_LONG;
|
|
}
|