libexplain
1.4.D001
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00001 /* 00002 * libexplain - Explain errno values returned by libc functions 00003 * Copyright (C) 2008, 2009, 2013 Peter Miller 00004 * Written by Peter Miller <pmiller@opensource.org.au> 00005 * 00006 * This program is free software; you can redistribute it and/or modify 00007 * it under the terms of the GNU Lesser General Public License as 00008 * published by the Free Software Foundation; either version 3 of the 00009 * License, or (at your option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public License 00017 * along with this program. If not, see <http://www.gnu.org/licenses/>. 00018 */ 00019 00020 #include <libexplain/parse_bits.h> 00021 #include <libexplain/string_buffer.h> 00022 00023 00024 void 00025 explain_parse_bits_print(explain_string_buffer_t *sb, int value, 00026 const explain_parse_bits_table_t *table, int table_size) 00027 { 00028 int first; 00029 int other; 00030 00031 if (value == 0) 00032 { 00033 explain_string_buffer_puts(sb, "0"); 00034 return; 00035 } 00036 first = 1; 00037 other = 0; 00038 for (;;) 00039 { 00040 int bit; 00041 const explain_parse_bits_table_t *tp; 00042 00043 bit = value & -value; 00044 value -= bit; 00045 tp = explain_parse_bits_find_by_value(bit, table, table_size); 00046 if (tp) 00047 { 00048 if (!first) 00049 explain_string_buffer_puts(sb, " | "); 00050 explain_string_buffer_puts(sb, tp->name); 00051 first = 0; 00052 } 00053 else 00054 other |= bit; 00055 if (!value) 00056 break; 00057 } 00058 if (other) 00059 { 00060 if (!first) 00061 explain_string_buffer_puts(sb, " | "); 00062 explain_string_buffer_printf(sb, "0x%X", other); 00063 } 00064 } 00065 00066 00067 /* vim: set ts=8 sw=4 et : */