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/* Copyright (c) 2007 Dmitry Xmelkov
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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* Neither the name of the copyright holders nor the names of
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE. */
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/* $Id: strpbrk_P.S,v 1.1.2.1 2007/03/31 23:14:26 dmix Exp $ */
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/** \ingroup avr_pgmspace
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\fn char *strpbrk_P(const char *s, PGM_P accept)
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The strpbrk_P() function locates the first occurrence in the string
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\p s of any of the characters in the flash string \p accept. This
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function is similar to strpbrk() except that \p accept is a pointer
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to a string in program space.
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\return The strpbrk_P() function returns a pointer to the character
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in \p s that matches one of the characters in \p accept, or \c NULL
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if no such character is found. The terminating zero is not considered
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as a part of string: if one or both args are empty, the result will
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/* This realization is compact, but is not very fast: an accept string
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.type _U(strpbrk_P), @function
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clr ret_hi ; a trick to save 1 word
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; get next symbol from s[]
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1: ld ret_lo, X+ ; *s++
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brne 1b ; branch if end of accept[] is reached
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.size _U(strpbrk_P), . - _U(strpbrk_P)
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#endif /* !__DOXYGEN__ */
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libc/pmstring/strpbrk_P.S
