| /* |
| * libjingle |
| * Copyright 2004--2005, Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. 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. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. |
| */ |
| |
| #include "talk/base/stringutils.h" |
| #include "talk/base/common.h" |
| |
| namespace talk_base { |
| |
| bool memory_check(const void* memory, int c, size_t count) { |
| const char* char_memory = static_cast<const char*>(memory); |
| char char_c = static_cast<char>(c); |
| for (size_t i=0; i<count; ++i) { |
| if (char_memory[i] != char_c) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| #ifdef WIN32 |
| int ascii_string_compare(const wchar_t* s1, const char* s2, size_t n, |
| CharacterTransformation transformation) { |
| wchar_t c1, c2; |
| while (true) { |
| if (n-- == 0) return 0; |
| c1 = transformation(*s1); |
| // Double check that characters are not UTF-8 |
| ASSERT(static_cast<unsigned char>(*s2) < 128); |
| // Note: *s2 gets implicitly promoted to wchar_t |
| c2 = transformation(*s2); |
| if (c1 != c2) return (c1 < c2) ? -1 : 1; |
| if (!c1) return 0; |
| ++s1; |
| ++s2; |
| } |
| } |
| |
| size_t asccpyn(wchar_t* buffer, size_t buflen, |
| const char* source, size_t srclen) { |
| if (buflen <= 0) |
| return 0; |
| |
| if (srclen == SIZE_UNKNOWN) { |
| srclen = strlenn(source, buflen - 1); |
| } else if (srclen >= buflen) { |
| srclen = buflen - 1; |
| } |
| #if _DEBUG |
| // Double check that characters are not UTF-8 |
| for (size_t pos = 0; pos < srclen; ++pos) |
| ASSERT(static_cast<unsigned char>(source[pos]) < 128); |
| #endif // _DEBUG |
| std::copy(source, source + srclen, buffer); |
| buffer[srclen] = 0; |
| return srclen; |
| } |
| |
| #endif // WIN32 |
| |
| } // namespace talk_base |