diff options
author | sanine <sanine.not@pm.me> | 2022-03-04 10:47:15 -0600 |
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committer | sanine <sanine.not@pm.me> | 2022-03-04 10:47:15 -0600 |
commit | 058f98a63658dc1a2579826ba167fd61bed1e21f (patch) | |
tree | bcba07a1615a14d943f3af3f815a42f3be86b2f3 /src/mesh/assimp-master/include/assimp/StringComparison.h | |
parent | 2f8028ac9e0812cb6f3cbb08f0f419e4e717bd22 (diff) |
add assimp submodule
Diffstat (limited to 'src/mesh/assimp-master/include/assimp/StringComparison.h')
-rw-r--r-- | src/mesh/assimp-master/include/assimp/StringComparison.h | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/src/mesh/assimp-master/include/assimp/StringComparison.h b/src/mesh/assimp-master/include/assimp/StringComparison.h new file mode 100644 index 0000000..0518d42 --- /dev/null +++ b/src/mesh/assimp-master/include/assimp/StringComparison.h @@ -0,0 +1,224 @@ +/* +Open Asset Import Library (assimp) +---------------------------------------------------------------------- + +Copyright (c) 2006-2022, assimp team + + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the +following conditions are met: + +* Redistributions of source code must retain the above + copyright notice, this list of conditions and the + following disclaimer. + +* Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the + following disclaimer in the documentation and/or other + materials provided with the distribution. + +* Neither the name of the assimp team, nor the names of its + contributors may be used to endorse or promote products + derived from this software without specific prior + written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +---------------------------------------------------------------------- +*/ + +/** @file Definition of platform independent string workers: + + ASSIMP_itoa10 + ASSIMP_stricmp + ASSIMP_strincmp + + These functions are not consistently available on all platforms, + or the provided implementations behave too differently. +*/ +#pragma once +#ifndef INCLUDED_AI_STRING_WORKERS_H +#define INCLUDED_AI_STRING_WORKERS_H + +#ifdef __GNUC__ +#pragma GCC system_header +#endif + +#include <assimp/StringComparison.h> +#include <assimp/ai_assert.h> +#include <assimp/defs.h> + +#include <cstdint> +#include <cstring> +#include <string> + +namespace Assimp { + +// ------------------------------------------------------------------------------- +/** @brief itoa with a fixed base 10 + * 'itoa' is not consistently available on all platforms so it is quite useful + * to have a small replacement function here. No need to use a full sprintf() + * if we just want to print a number ... + * @param out Output buffer + * @param max Maximum number of characters to be written, including '\0'. + * This parameter may not be 0. + * @param number Number to be written + * @return Length of the output string, excluding the '\0' + */ +inline unsigned int ASSIMP_itoa10(char *out, unsigned int max, int32_t number) { + ai_assert(nullptr != out); + + // write the unary minus to indicate we have a negative number + unsigned int written = 1u; + if (number < 0 && written < max) { + *out++ = '-'; + ++written; + number = -number; + } + + // We begin with the largest number that is not zero. + int32_t cur = 1000000000; // 2147483648 + bool mustPrint = false; + while (written < max) { + + const unsigned int digit = number / cur; + if (mustPrint || digit > 0 || 1 == cur) { + // print all future zero's from now + mustPrint = true; + + *out++ = '0' + static_cast<char>(digit); + + ++written; + number -= digit * cur; + if (1 == cur) { + break; + } + } + cur /= 10; + } + + // append a terminal zero + *out++ = '\0'; + return written - 1; +} + +// ------------------------------------------------------------------------------- +/** @brief itoa with a fixed base 10 (Secure template overload) + * The compiler should choose this function if he or she is able to determine the + * size of the array automatically. + */ +template <size_t length> +inline unsigned int ASSIMP_itoa10(char (&out)[length], int32_t number) { + return ASSIMP_itoa10(out, length, number); +} + +// ------------------------------------------------------------------------------- +/** @brief Helper function to do platform independent string comparison. + * + * This is required since stricmp() is not consistently available on + * all platforms. Some platforms use the '_' prefix, others don't even + * have such a function. + * + * @param s1 First input string + * @param s2 Second input string + * @return 0 if the given strings are identical + */ +inline int ASSIMP_stricmp(const char *s1, const char *s2) { + ai_assert(nullptr != s1); + ai_assert(nullptr != s2); + +#if (defined _MSC_VER) + + return ::_stricmp(s1, s2); +#else + char c1, c2; + do { + c1 = tolower((unsigned char)*(s1++)); + c2 = tolower((unsigned char)*(s2++)); + } while (c1 && (c1 == c2)); + return c1 - c2; +#endif +} + +// ------------------------------------------------------------------------------- +/** @brief Case independent comparison of two std::strings + * + * @param a First string + * @param b Second string + * @return 0 if a == b + */ +inline int ASSIMP_stricmp(const std::string &a, const std::string &b) { + int i = (int)b.length() - (int)a.length(); + return (i ? i : ASSIMP_stricmp(a.c_str(), b.c_str())); +} + +// ------------------------------------------------------------------------------- +/** @brief Helper function to do platform independent string comparison. + * + * This is required since strincmp() is not consistently available on + * all platforms. Some platforms use the '_' prefix, others don't even + * have such a function. + * + * @param s1 First input string + * @param s2 Second input string + * @param n Maximum number of characters to compare + * @return 0 if the given strings are identical + */ +inline int ASSIMP_strincmp(const char *s1, const char *s2, unsigned int n) { + ai_assert(nullptr != s1); + ai_assert(nullptr != s2); + if (!n) { + return 0; + } + +#if (defined _MSC_VER) + + return ::_strnicmp(s1, s2, n); + +#elif defined(__GNUC__) + + return ::strncasecmp(s1, s2, n); + +#else + char c1, c2; + unsigned int p = 0; + do { + if (p++ >= n) return 0; + c1 = tolower((unsigned char)*(s1++)); + c2 = tolower((unsigned char)*(s2++)); + } while (c1 && (c1 == c2)); + + return c1 - c2; +#endif +} + +// ------------------------------------------------------------------------------- +/** @brief Evaluates an integer power + * + * todo: move somewhere where it fits better in than here + */ +inline unsigned int integer_pow(unsigned int base, unsigned int power) { + unsigned int res = 1; + for (unsigned int i = 0; i < power; ++i) { + res *= base; + } + + return res; +} + +} // namespace Assimp + +#endif // ! AI_STRINGCOMPARISON_H_INC |