71 lines
1.2 KiB
C
71 lines
1.2 KiB
C
|
// String.h
|
||
|
|
|
||
|
|
#ifndef STRING_H
|
||
|
|
#define STRING_H
|
||
|
|
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#include <SupportDefs.h>
|
||
|
|
|
||
|
|
|
||
|
|
// string_hash
|
||
|
|
//
|
||
|
|
// from the Dragon Book: a slightly modified hashpjw()
|
||
|
|
static inline
|
||
|
|
uint32
|
||
|
|
string_hash(const char *name)
|
||
|
|
{
|
||
|
|
uint32 h = 0;
|
||
|
|
if (name) {
|
||
|
|
for (; *name; name++) {
|
||
|
|
uint32 g = h & 0xf0000000;
|
||
|
|
if (g)
|
||
|
|
h ^= g >> 24;
|
||
|
|
h = (h << 4) + *name;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return h;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
|
||
|
|
namespace UserlandFSUtil {
|
||
|
|
|
||
|
|
// String
|
||
|
|
class String {
|
||
|
|
public:
|
||
|
|
String();
|
||
|
|
String(const String &string);
|
||
|
|
String(const char *string, int32 length = -1);
|
||
|
|
~String();
|
||
|
|
|
||
|
|
bool SetTo(const char *string, int32 maxLength = -1);
|
||
|
|
void Unset();
|
||
|
|
|
||
|
|
void Truncate(int32 newLength);
|
||
|
|
|
||
|
|
const char *GetString() const;
|
||
|
|
int32 GetLength() const { return fLength; }
|
||
|
|
|
||
|
|
uint32 GetHashCode() const { return string_hash(GetString()); }
|
||
|
|
|
||
|
|
String &operator=(const String &string);
|
||
|
|
bool operator==(const String &string) const;
|
||
|
|
bool operator!=(const String &string) const { return !(*this == string); }
|
||
|
|
|
||
|
|
private:
|
||
|
|
bool _SetTo(const char *string, int32 length);
|
||
|
|
|
||
|
|
private:
|
||
|
|
int32 fLength;
|
||
|
|
char *fString;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace UserlandFSUtil
|
||
|
|
|
||
|
|
using UserlandFSUtil::String;
|
||
|
|
|
||
|
|
#endif // __cplusplus
|
||
|
|
|
||
|
|
#endif // STRING_H
|