Add graph references
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Abdelrahman Said
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/*
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igraph library.
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Copyright (C) 2007-2025 The igraph development team <igraph@igraph.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#define CONCAT2x(a,b) a ## _ ## b
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#define CONCAT2(a,b) CONCAT2x(a,b)
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#define CONCAT3x(a,b,c) a ## _ ## b ## _ ## c
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#define CONCAT3(a,b,c) CONCAT3x(a,b,c)
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#define CONCAT4x(a,b,c,d) a ## _ ## b ## _ ## c ## _ ## d
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#define CONCAT4(a,b,c,d) CONCAT4x(a,b,c,d)
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#define CONCAT5x(a,b,c,d,e) a ## _ ## b ## _ ## c ## _ ## d ## _ ## e
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#define CONCAT5(a,b,c,d,e) CONCAT5x(a,b,c,d,e)
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#if defined(BASE_IGRAPH_REAL)
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#define BASE igraph_real_t
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#define BASE_VECTOR igraph_vector_t
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#define BASE_MATRIX igraph_matrix_t
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#define SHORT
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#define OUT_FORMAT "%g"
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#define PRINTFUNC(val) igraph_real_printf(val)
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#define SNPRINTFUNC(str, size, val) igraph_real_snprintf(str, size, val)
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#define FPRINTFUNC_ALIGNED(file, width, val) igraph_real_fprintf_aligned(file, width, val)
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#define FPRINTFUNC(file, val) igraph_real_fprintf(file, val)
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#define ZERO 0.0
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#define ONE 1.0
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#define MULTIPLICITY 1
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#elif defined(BASE_CHAR)
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#define BASE char
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#define BASE_VECTOR igraph_vector_char_t
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#define BASE_MATRIX igraph_matrix_char_t
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#define SHORT char
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#define OUT_FORMAT "%d"
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#define ZERO 0
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#define ONE 1
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#define MULTIPLICITY 1
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#elif defined(BASE_BOOL)
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#define BASE igraph_bool_t
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#define BASE_VECTOR igraph_vector_bool_t
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#define BASE_MATRIX igraph_matrix_bool_t
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#define SHORT bool
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#define OUT_FORMAT "%d"
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#define ZERO 0
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#define ONE 1
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#define MULTIPLICITY 1
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#define NOTORDERED 1
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#define NOABS 1
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#define EQ(a,b) ((a && b) || (!a && !b))
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#elif defined(BASE_INT)
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#define BASE igraph_int_t
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#define BASE_VECTOR igraph_vector_int_t
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#define BASE_MATRIX igraph_matrix_int_t
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#define SHORT int
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#define OUT_FORMAT "%" IGRAPH_PRId
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#define ZERO 0
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#define ONE 1
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#define MULTIPLICITY 1
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#elif defined(BASE_FORTRAN_INT)
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#define BASE int
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#define SHORT fortran_int
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#define OUT_FORMAT "%d"
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#define ZERO 0
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#define ONE 1
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#define MULTIPLICITY 1
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#elif defined(BASE_PTR)
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#define BASE void*
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#define SHORT ptr
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#define ZERO 0
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#define MULTIPLICITY 1
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#elif defined(BASE_COMPLEX)
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#undef complex
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#define BASE igraph_complex_t
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#define BASE_VECTOR igraph_vector_complex_t
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#define BASE_MATRIX igraph_matrix_complex_t
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#define SHORT complex
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#define PRINTFUNC(val) igraph_complex_printf(val)
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#define SNPRINTFUNC(str, size, val) igraph_complex_snprintf(str, size, val)
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#define FPRINTFUNC_ALIGNED(file, width, val) igraph_complex_fprintf_aligned(file, width, val)
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#define FPRINTFUNC(file, val) igraph_complex_fprintf(file, val)
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#define ZERO {{0.0, 0.0}}
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#define ONE {{1.0, 0.0}}
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#define MULTIPLICITY 2
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#define NOTORDERED 1
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#define NOABS 1
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#define SUM(a,b,c) ((a) = igraph_complex_add((b),(c)))
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#define DIFF(a,b,c) ((a) = igraph_complex_sub((b),(c)))
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#define PROD(a,b,c) ((a) = igraph_complex_mul((b),(c)))
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#define DIV(a,b,c) ((a) = igraph_complex_div((b),(c)))
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#define EQ(a,b) IGRAPH_COMPLEX_EQ((a),(b))
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#define SQ(a) IGRAPH_REAL(igraph_complex_mul((a),(a)))
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#elif defined(BASE_GRAPH)
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#define BASE igraph_t
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#elif defined(BASE_ATTRIBUTE_RECORD)
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#define BASE igraph_attribute_record_t
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#elif defined(BASE_BITSET)
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#define BASE igraph_bitset_t
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#else
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#error unknown BASE_ directive
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#endif
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#if defined(VECTOR_LIST)
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#if defined(BASE_IGRAPH_REAL)
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#define FUNCTION(c) CONCAT2x(igraph_vector_list,c)
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#define INTERNAL_FUNCTION(c) CONCAT2x(igraph_i_vector_list,c)
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#define TYPE igraph_vector_list_t
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#elif defined(BASE_BOOL)
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/* Special case because stdbool.h defines bool as a macro to _Bool which would
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* screw things up */
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#define FUNCTION(c) CONCAT2x(igraph_vector_bool_list,c)
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#define INTERNAL_FUNCTION(c) CONCAT2x(igraph_i_vector_bool_list,c)
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#define TYPE igraph_vector_bool_list_t
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#else
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#define FUNCTION(c) CONCAT4(igraph_vector,SHORT,list,c)
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#define INTERNAL_FUNCTION(c) CONCAT4(igraph_i_vector,SHORT,list,c)
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#define TYPE CONCAT3(igraph_vector,SHORT,list_t)
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#endif
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#elif defined(MATRIX_LIST)
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#if defined(BASE_IGRAPH_REAL)
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#define FUNCTION(c) CONCAT2x(igraph_matrix_list,c)
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#define INTERNAL_FUNCTION(c) CONCAT2x(igraph_i_matrix_list,c)
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#define TYPE igraph_matrix_list_t
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#elif defined(BASE_BOOL)
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/* Special case because stdbool.h defines bool as a macro to _Bool which would
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* screw things up */
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#define FUNCTION(c) CONCAT2x(igraph_matrix_bool_list,c)
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#define INTERNAL_FUNCTION(c) CONCAT2x(igraph_i_matrix_bool_list,c)
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#define TYPE igraph_matrix_bool_list_t
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#else
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#define FUNCTION(c) CONCAT4(igraph_matrix,SHORT,list,c)
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#define INTERNAL_FUNCTION(c) CONCAT4(igraph_i_matrix,SHORT,list,c)
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#define TYPE CONCAT3(igraph_matrix,SHORT,list_t)
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#endif
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#elif defined(GRAPH_LIST)
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#define FUNCTION(c) CONCAT2x(igraph_graph_list,c)
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#define INTERNAL_FUNCTION(c) CONCAT2x(igraph_i_graph_list,c)
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#define TYPE igraph_graph_list_t
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#elif defined(ATTRIBUTE_RECORD_LIST)
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#define FUNCTION(c) CONCAT2x(igraph_attribute_record_list,c)
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#define INTERNAL_FUNCTION(c) CONCAT2x(igraph_i_attribute_record_list,c)
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#define TYPE igraph_attribute_record_list_t
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#elif defined(BITSET_LIST)
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#define FUNCTION(c) CONCAT2x(igraph_bitset_list,c)
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#define INTERNAL_FUNCTION(c) CONCAT2x(igraph_i_bitset_list,c)
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#define TYPE igraph_bitset_list_t
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#else
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#if defined(BASE_IGRAPH_REAL)
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#define FUNCTION(a,c) CONCAT2(a,c)
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#define TYPE(a) CONCAT2(a,t)
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#elif defined(BASE_BOOL)
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/* Special case because stdbool.h defines bool as a macro to _Bool which would
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* screw things up */
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#define FUNCTION(a,c) CONCAT3x(a,bool,c)
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#define TYPE(a) CONCAT3x(a,bool,t)
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#else
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#define FUNCTION(a,c) CONCAT3(a,SHORT,c)
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#define TYPE(a) CONCAT3(a,SHORT,t)
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#endif
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#endif
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#if defined(HEAP_TYPE_MIN)
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#define HEAPMORE <
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#define HEAPMOREEQ <=
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#define HEAPLESS >
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#define HEAPLESSEQ >=
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#undef FUNCTION
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#undef INTERNAL_FUNCTION
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#undef TYPE
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#if defined(BASE_IGRAPH_REAL)
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#define FUNCTION(dir,name) CONCAT3(dir,min,name)
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#define TYPE(dir) CONCAT3(dir,min,t)
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#else
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#define FUNCTION(a,c) CONCAT4(a,min,SHORT,c)
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#define TYPE(dir) CONCAT4(dir,min,SHORT,t)
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#endif
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#endif
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#if defined(HEAP_TYPE_MAX)
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#define HEAPMORE >
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#define HEAPMOREEQ >=
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#define HEAPLESS <
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#define HEAPLESSEQ <=
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#endif
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