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Copyright (C) 2006 Gabor Csardi <csardi@rmki.kfki.hu>
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MTA RMKI, Konkoly-Thege Miklos st. 29-33, Budapest 1121, Hungary
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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, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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static igraph_progress_handler_t *igraph_i_progress_handler=0;
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int igraph_progress(const char *message, igraph_real_t percent, void *data) {
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if (igraph_i_progress_handler) {
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if (igraph_i_progress_handler(message, percent, data) != IGRAPH_SUCCESS)
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return IGRAPH_INTERRUPTED;
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return IGRAPH_SUCCESS;
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int igraph_progress_handler_stderr(const char *message, igraph_real_t percent,
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fputs(message, stderr);
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fprintf(stderr, "%.1f percent ready\n", (double)percent);
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igraph_progress_handler_t *
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igraph_set_progress_handler(igraph_progress_handler_t new_handler) {
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igraph_progress_handler_t *previous_handler=igraph_i_progress_handler;
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igraph_i_progress_handler = new_handler;
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return previous_handler;