Edit
kc3-lang/harfbuzz/src/hb-string-array.hh
Michiharu Ariza
- src/hb-string-array.hh
-
/* * Copyright © 2017 Google, Inc. * * This is part of HarfBuzz, a text shaping library. * * Permission is hereby granted, without written agreement and without * license or royalty fees, to use, copy, modify, and distribute this * software and its documentation for any purpose, provided that the * above copyright notice and the following two paragraphs appear in * all copies of this software. * * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. * * Google Author(s): Behdad Esfahbod */ #ifndef HB_STRING_ARRAY_HH #if 0 /* Make checks happy. */ #define HB_STRING_ARRAY_HH #endif #include "hb.hh" /* Based on Bruno Haible's code in Appendix B of Ulrich Drepper's dsohowto.pdf: * https://software.intel.com/sites/default/files/m/a/1/e/dsohowto.pdf */ #define HB_STRING_ARRAY_TYPE_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgstr_t) #define HB_STRING_ARRAY_POOL_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgstr) #define HB_STRING_ARRAY_OFFS_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgidx) #define HB_STRING_ARRAY_LENG_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _length) static const union HB_STRING_ARRAY_TYPE_NAME { struct { /* I like to avoid storing the nul-termination byte since we don't need it, * but C++ does not allow that. * https://stackoverflow.com/q/28433862 */ #define _S(s) char HB_PASTE (str, __LINE__)[sizeof (s)]; #include HB_STRING_ARRAY_LIST #undef _S } st; char str[HB_VAR_ARRAY]; } HB_STRING_ARRAY_POOL_NAME = { { #define _S(s) s, #include HB_STRING_ARRAY_LIST #undef _S } }; static const unsigned int HB_STRING_ARRAY_OFFS_NAME[] = { #define _S(s) offsetof (union HB_STRING_ARRAY_TYPE_NAME, st.HB_PASTE(str, __LINE__)), #include HB_STRING_ARRAY_LIST #undef _S sizeof (HB_STRING_ARRAY_TYPE_NAME) }; static const unsigned int HB_STRING_ARRAY_LENG_NAME = ARRAY_LENGTH_CONST (HB_STRING_ARRAY_OFFS_NAME) - 1; static inline hb_bytes_t HB_STRING_ARRAY_NAME (unsigned int i) { assert (i < ARRAY_LENGTH (HB_STRING_ARRAY_OFFS_NAME) - 1); return hb_bytes_t (HB_STRING_ARRAY_POOL_NAME.str + HB_STRING_ARRAY_OFFS_NAME[i], HB_STRING_ARRAY_OFFS_NAME[i + 1] - HB_STRING_ARRAY_OFFS_NAME[i] - 1); } #undef HB_STRING_ARRAY_TYPE_NAME #undef HB_STRING_ARRAY_POOL_NAME #undef HB_STRING_ARRAY_OFFS_NAME #undef HB_STRING_ARRAY_LENG_NAME #endif /* HB_STRING_ARRAY_HH */