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- /* Implementation of the FINDLOC intrinsic
- Copyright (C) 2018-2022 Free Software Foundation, Inc.
- Contributed by Thomas König <tk@tkoenig.net>
- This file is part of the GNU Fortran 95 runtime library (libgfortran).
- Libgfortran is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public
- License as published by the Free Software Foundation; either
- version 3 of the License, or (at your option) any later version.
- Libgfortran is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- Under Section 7 of GPL version 3, you are granted additional
- permissions described in the GCC Runtime Library Exception, version
- 3.1, as published by the Free Software Foundation.
- You should have received a copy of the GNU General Public License and
- a copy of the GCC Runtime Library Exception along with this program;
- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
- <http://www.gnu.org/licenses/>. */
- #include "libgfortran.h"
- #ifdef HAVE_GFC_UINTEGER_4
- index_type findloc2_s4 (gfc_array_s4 * const restrict array,
- const GFC_UINTEGER_4 * restrict value, GFC_LOGICAL_4 back,
- gfc_charlen_type len_array, gfc_charlen_type len_value);
- export_proto(findloc2_s4);
- index_type
- findloc2_s4 (gfc_array_s4 * const restrict array, const GFC_UINTEGER_4 * restrict value,
- GFC_LOGICAL_4 back,
- gfc_charlen_type len_array, gfc_charlen_type len_value)
- {
- index_type i;
- index_type sstride;
- index_type extent;
- const GFC_UINTEGER_4 * restrict src;
- extent = GFC_DESCRIPTOR_EXTENT(array,0);
- if (extent <= 0)
- return 0;
- sstride = GFC_DESCRIPTOR_STRIDE(array,0) * len_array;
- if (back)
- {
- src = array->base_addr + (extent - 1) * sstride;
- for (i = extent; i >= 0; i--)
- {
- if (compare_string_char4 (len_array, src, len_value, value) == 0)
- return i;
- src -= sstride;
- }
- }
- else
- {
- src = array->base_addr;
- for (i = 1; i <= extent; i++)
- {
- if (compare_string_char4 (len_array, src, len_value, value) == 0)
- return i;
- src += sstride;
- }
- }
- return 0;
- }
- index_type mfindloc2_s4 (gfc_array_s4 * const restrict array,
- const GFC_UINTEGER_4 * restrict value,
- gfc_array_l1 *const restrict mask, GFC_LOGICAL_4 back,
- gfc_charlen_type len_array, gfc_charlen_type len_value);
- export_proto(mfindloc2_s4);
- index_type
- mfindloc2_s4 (gfc_array_s4 * const restrict array,
- const GFC_UINTEGER_4 * restrict value, gfc_array_l1 *const restrict mask,
- GFC_LOGICAL_4 back, gfc_charlen_type len_array,
- gfc_charlen_type len_value)
- {
- index_type i;
- index_type sstride;
- index_type extent;
- const GFC_UINTEGER_4 * restrict src;
- const GFC_LOGICAL_1 * restrict mbase;
- int mask_kind;
- index_type mstride;
- extent = GFC_DESCRIPTOR_EXTENT(array,0);
- if (extent <= 0)
- return 0;
- mask_kind = GFC_DESCRIPTOR_SIZE (mask);
- mbase = mask->base_addr;
- if (mask_kind == 1 || mask_kind == 2 || mask_kind == 4 || mask_kind == 8
- #ifdef HAVE_GFC_LOGICAL_16
- || mask_kind == 16
- #endif
- )
- mbase = GFOR_POINTER_TO_L1 (mbase, mask_kind);
- else
- internal_error (NULL, "Funny sized logical array");
- sstride = GFC_DESCRIPTOR_STRIDE(array,0) * len_array;
- mstride = GFC_DESCRIPTOR_STRIDE_BYTES(mask,0);
- if (back)
- {
- src = array->base_addr + (extent - 1) * sstride;
- mbase += (extent - 1) * mstride;
- for (i = extent; i >= 0; i--)
- {
- if (*mbase && (compare_string_char4 (len_array, src, len_value, value) == 0))
- return i;
- src -= sstride;
- mbase -= mstride;
- }
- }
- else
- {
- src = array->base_addr;
- for (i = 1; i <= extent; i++)
- {
- if (*mbase && (compare_string_char4 (len_array, src, len_value, value) == 0))
- return i;
- src += sstride;
- mbase += mstride;
- }
- }
- return 0;
- }
- index_type sfindloc2_s4 (gfc_array_s4 * const restrict array,
- const GFC_UINTEGER_4 * restrict value,
- GFC_LOGICAL_4 *const restrict mask, GFC_LOGICAL_4 back,
- gfc_charlen_type len_array, gfc_charlen_type len_value);
- export_proto(sfindloc2_s4);
- index_type
- sfindloc2_s4 (gfc_array_s4 * const restrict array,
- const GFC_UINTEGER_4 * restrict value, GFC_LOGICAL_4 *const restrict mask,
- GFC_LOGICAL_4 back, gfc_charlen_type len_array,
- gfc_charlen_type len_value)
- {
- if (mask == NULL || *mask)
- {
- return findloc2_s4 (array, value, back, len_array, len_value);
- }
- return 0;
- }
- #endif
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