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/*
* 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
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