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/***********************************************************************/
/* */
/* OCaml */
/* */
/* Manuel Serrano and Xavier Leroy, INRIA Rocquencourt */
/* */
/* Copyright 2000 Institut National de Recherche en Informatique et */
/* en Automatique. All rights reserved. This file is distributed */
/* under the terms of the GNU Library General Public License, with */
/* the special exception on linking described in file ../../LICENSE. */
/* */
/***********************************************************************/
#ifndef CAML_BIGARRAY_H
#define CAML_BIGARRAY_H
#ifndef CAML_NAME_SPACE
#include "caml/compatibility.h"
#endif
#include "caml/config.h"
#include "caml/mlvalues.h"
typedef signed char caml_ba_int8;
typedef unsigned char caml_ba_uint8;
#if SIZEOF_SHORT == 2
typedef short caml_ba_int16;
typedef unsigned short caml_ba_uint16;
#else
#error "No 16-bit integer type available"
#endif
#define CAML_BA_MAX_NUM_DIMS 16
enum caml_ba_kind {
CAML_BA_FLOAT32, /* Single-precision floats */
CAML_BA_FLOAT64, /* Double-precision floats */
CAML_BA_SINT8, /* Signed 8-bit integers */
CAML_BA_UINT8, /* Unsigned 8-bit integers */
CAML_BA_SINT16, /* Signed 16-bit integers */
CAML_BA_UINT16, /* Unsigned 16-bit integers */
CAML_BA_INT32, /* Signed 32-bit integers */
CAML_BA_INT64, /* Signed 64-bit integers */
CAML_BA_CAML_INT, /* OCaml-style integers (signed 31 or 63 bits) */
CAML_BA_NATIVE_INT, /* Platform-native long integers (32 or 64 bits) */
CAML_BA_COMPLEX32, /* Single-precision complex */
CAML_BA_COMPLEX64, /* Double-precision complex */
CAML_BA_CHAR, /* Characters */
CAML_BA_KIND_MASK = 0xFF /* Mask for kind in flags field */
};
#define Caml_ba_kind_val(v) Int_val(v)
#define Val_caml_ba_kind(k) Val_int(k)
enum caml_ba_layout {
CAML_BA_C_LAYOUT = 0, /* Row major, indices start at 0 */
CAML_BA_FORTRAN_LAYOUT = 0x100, /* Column major, indices start at 1 */
CAML_BA_LAYOUT_MASK = 0x100, /* Mask for layout in flags field */
CAML_BA_LAYOUT_SHIFT = 8 /* Bit offset of layout flag */
};
#define Caml_ba_layout_val(v) (Int_val(v) << CAML_BA_LAYOUT_SHIFT)
#define Val_caml_ba_layout(l) Val_int(l >> CAML_BA_LAYOUT_SHIFT)
enum caml_ba_managed {
CAML_BA_EXTERNAL = 0, /* Data is not allocated by OCaml */
CAML_BA_MANAGED = 0x200, /* Data is allocated by OCaml */
CAML_BA_MAPPED_FILE = 0x400, /* Data is a memory mapped file */
CAML_BA_MANAGED_MASK = 0x600 /* Mask for "managed" bits in flags field */
};
struct caml_ba_proxy {
intnat refcount; /* Reference count */
void * data; /* Pointer to base of actual data */
uintnat size; /* Size of data in bytes (if mapped file) */
};
struct caml_ba_array {
void * data; /* Pointer to raw data */
intnat num_dims; /* Number of dimensions */
intnat flags; /* Kind of element array + memory layout + allocation status */
struct caml_ba_proxy * proxy; /* The proxy for sub-arrays, or NULL */
/* PR#5516: use C99's flexible array types if possible */
#if (__STDC_VERSION__ >= 199901L)
intnat dim[] /*[num_dims]*/; /* Size in each dimension */
#else
intnat dim[1] /*[num_dims]*/; /* Size in each dimension */
#endif
};
/* Size of struct caml_ba_array, in bytes, without dummy first dimension */
#if (__STDC_VERSION__ >= 199901L)
#define SIZEOF_BA_ARRAY sizeof(struct caml_ba_array)
#else
#define SIZEOF_BA_ARRAY (sizeof(struct caml_ba_array) - sizeof(intnat))
#endif
#define Caml_ba_array_val(v) ((struct caml_ba_array *) Data_custom_val(v))
#define Caml_ba_data_val(v) (Caml_ba_array_val(v)->data)
#if defined(IN_OCAML_BIGARRAY)
#define CAMLBAextern CAMLexport
#else
#define CAMLBAextern CAMLextern
#endif
#ifdef __cplusplus
extern "C" {
#endif
CAMLBAextern value
caml_ba_alloc(int flags, int num_dims, void * data, intnat * dim);
CAMLBAextern value caml_ba_alloc_dims(int flags, int num_dims, void * data,
... /*dimensions, with type intnat */);
CAMLBAextern uintnat caml_ba_byte_size(struct caml_ba_array * b);
#ifdef __cplusplus
}
#endif
#endif /* CAML_BIGARRAY_H */
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