45 lines
2.0 KiB
C
45 lines
2.0 KiB
C
/*
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* utils.h: miscellaneous utilities
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*
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* Copyright (c) 2013, Přemysl Janouch <p.janouch@gmail.com>
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* All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#ifndef UTILS_H
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#define UTILS_H
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/** After this statement, the element has been found and its index is stored
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* in the variable "imid". */
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#define BINARY_SEARCH_BEGIN(max, compare) \
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gint imin = 0, imax = max, imid; \
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while (imin <= imax) { \
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imid = imin + (imax - imin) / 2; \
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gint cmp = compare; \
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if (cmp > 0) imin = imid + 1; \
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else if (cmp < 0) imax = imid - 1; \
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else {
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/** After this statement, the binary search has failed and "imin" stores
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* the position where the element can be inserted. */
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#define BINARY_SEARCH_END \
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} \
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}
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gboolean stream_read_all (GByteArray *ba, GInputStream *is, GError **error);
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gchar *stream_read_string (GDataInputStream *dis, GError **error);
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#endif /* ! UTILS_H */
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