本文整理汇总了C++中OutBuffer::reserve方法的典型用法代码示例。如果您正苦于以下问题：C++ OutBuffer::reserve方法的具体用法？C++ OutBuffer::reserve怎么用？C++ OutBuffer::reserve使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类OutBuffer的用法示例。
在下文中一共展示了OutBuffer::reserve方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Strings
// Split a path into an Array of paths
Strings *FileName::splitPath(const char *path)
{
char c = 0; // unnecessary initializer is for VC /W4
const char *p;
OutBuffer buf;
Strings *array;
array = new Strings();
if (path)
{
p = path;
do
{ char instring = 0;
while (isspace((unsigned char)*p)) // skip leading whitespace
p++;
buf.reserve(strlen(p) + 1); // guess size of path
for (; ; p++)
{
c = *p;
switch (c)
{
case '"':
instring ^= 1; // toggle inside/outside of string
continue;
#if MACINTOSH
case ',':
#endif
#if _WIN32
case ';':
#endif
#if POSIX
case ':':
#endif
p++;
break; // note that ; cannot appear as part
// of a path, quotes won't protect it
case 0x1A: // ^Z means end of file
case 0:
break;
case '\r':
continue; // ignore carriage returns
#if POSIX
case '~':
buf.writestring(getenv("HOME"));
continue;
#endif
#if 0
case ' ':
case '\t': // tabs in filenames?
if (!instring) // if not in string
break; // treat as end of path
#endif
default:
buf.writeByte(c);
continue;
}
break;
}
if (buf.offset) // if path is not empty
{
buf.writeByte(0); // to asciiz
array->push(buf.extractData());
}
} while (c);
}
return array;
}示例2: parse
void Module::parse()
#endif
{ char *srcname;
unsigned char *buf;
unsigned buflen;
unsigned le;
unsigned bom;
//printf("Module::parse()\n");
srcname = srcfile->name->toChars();
//printf("Module::parse(srcname = '%s')\n", srcname);
buf = srcfile->buffer;
buflen = srcfile->len;
if (buflen >= 2)
{
/* Convert all non-UTF-8 formats to UTF-8.
* BOM : http://www.unicode.org/faq/utf_bom.html
* 00 00 FE FF UTF-32BE, big-endian
* FF FE 00 00 UTF-32LE, little-endian
* FE FF UTF-16BE, big-endian
* FF FE UTF-16LE, little-endian
* EF BB BF UTF-8
*/
bom = 1; // assume there's a BOM
if (buf[0] == 0xFF && buf[1] == 0xFE)
{
if (buflen >= 4 && buf[2] == 0 && buf[3] == 0)
{ // UTF-32LE
le = 1;
Lutf32:
OutBuffer dbuf;
unsigned *pu = (unsigned *)(buf);
unsigned *pumax = &pu[buflen / 4];
if (buflen & 3)
{ error("odd length of UTF-32 char source %u", buflen);
fatal();
}
dbuf.reserve(buflen / 4);
for (pu += bom; pu < pumax; pu++)
{ unsigned u;
u = le ? readlongLE(pu) : readlongBE(pu);
if (u & ~0x7F)
{
if (u > 0x10FFFF)
{ error("UTF-32 value %08x greater than 0x10FFFF", u);
fatal();
}
dbuf.writeUTF8(u);
}
else
dbuf.writeByte(u);
}
dbuf.writeByte(0); // add 0 as sentinel for scanner
buflen = dbuf.offset - 1; // don't include sentinel in count
buf = (unsigned char *) dbuf.extractData();
}
else
{ // UTF-16LE (X86)
// Convert it to UTF-8
le = 1;
Lutf16:
OutBuffer dbuf;
unsigned short *pu = (unsigned short *)(buf);
unsigned short *pumax = &pu[buflen / 2];
if (buflen & 1)
{ error("odd length of UTF-16 char source %u", buflen);
fatal();
}
dbuf.reserve(buflen / 2);
for (pu += bom; pu < pumax; pu++)
{ unsigned u;
u = le ? readwordLE(pu) : readwordBE(pu);
if (u & ~0x7F)
{ if (u >= 0xD800 && u <= 0xDBFF)
{ unsigned u2;
if (++pu > pumax)
{ error("surrogate UTF-16 high value %04x at EOF", u);
fatal();
}
u2 = le ? readwordLE(pu) : readwordBE(pu);
if (u2 < 0xDC00 || u2 > 0xDFFF)
{ error("surrogate UTF-16 low value %04x out of range", u2);
fatal();
}
u = (u - 0xD7C0) << 10;
u |= (u2 - 0xDC00);
}
//.........这里部分代码省略.........
示例3: parse
void Module::parse()
{
//printf("Module::parse()\n");
char *srcname = srcfile->name->toChars();
//printf("Module::parse(srcname = '%s')\n", srcname);
utf8_t *buf = (utf8_t *)srcfile->buffer;
size_t buflen = srcfile->len;
if (buflen >= 2)
{
/* Convert all non-UTF-8 formats to UTF-8.
* BOM : http://www.unicode.org/faq/utf_bom.html
* 00 00 FE FF UTF-32BE, big-endian
* FF FE 00 00 UTF-32LE, little-endian
* FE FF UTF-16BE, big-endian
* FF FE UTF-16LE, little-endian
* EF BB BF UTF-8
*/
unsigned le;
unsigned bom = 1; // assume there's a BOM
if (buf[0] == 0xFF && buf[1] == 0xFE)
{
if (buflen >= 4 && buf[2] == 0 && buf[3] == 0)
{ // UTF-32LE
le = 1;
Lutf32:
OutBuffer dbuf;
unsigned *pu = (unsigned *)(buf);
unsigned *pumax = &pu[buflen / 4];
if (buflen & 3)
{ error("odd length of UTF-32 char source %u", buflen);
fatal();
}
dbuf.reserve(buflen / 4);
for (pu += bom; pu < pumax; pu++)
{ unsigned u;
u = le ? readlongLE(pu) : readlongBE(pu);
if (u & ~0x7F)
{
if (u > 0x10FFFF)
{ error("UTF-32 value %08x greater than 0x10FFFF", u);
fatal();
}
dbuf.writeUTF8(u);
}
else
dbuf.writeByte(u);
}
dbuf.writeByte(0); // add 0 as sentinel for scanner
buflen = dbuf.offset - 1; // don't include sentinel in count
buf = (utf8_t *) dbuf.extractData();
}
else
{ // UTF-16LE (X86)
// Convert it to UTF-8
le = 1;
Lutf16:
OutBuffer dbuf;
unsigned short *pu = (unsigned short *)(buf);
unsigned short *pumax = &pu[buflen / 2];
if (buflen & 1)
{ error("odd length of UTF-16 char source %u", buflen);
fatal();
}
dbuf.reserve(buflen / 2);
for (pu += bom; pu < pumax; pu++)
{ unsigned u;
u = le ? readwordLE(pu) : readwordBE(pu);
if (u & ~0x7F)
{ if (u >= 0xD800 && u <= 0xDBFF)
{ unsigned u2;
if (++pu > pumax)
{ error("surrogate UTF-16 high value %04x at EOF", u);
fatal();
}
u2 = le ? readwordLE(pu) : readwordBE(pu);
if (u2 < 0xDC00 || u2 > 0xDFFF)
{ error("surrogate UTF-16 low value %04x out of range", u2);
fatal();
}
u = (u - 0xD7C0) << 10;
u |= (u2 - 0xDC00);
}
else if (u >= 0xDC00 && u <= 0xDFFF)
{ error("unpaired surrogate UTF-16 value %04x", u);
fatal();
}
else if (u == 0xFFFE || u == 0xFFFF)
//.........这里部分代码省略.........