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added isNull() method to rsid to allow checking for meaningless ids. Consequenctly the null id 000... is implicitly not an id.

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git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7083 b45a01b8-16f6-495d-af2f-9b41ad6348cc
This commit is contained in:
csoler 2014-02-02 10:16:25 +00:00
parent 235280399f
commit 731d28bd41
1 changed files with 13 additions and 19 deletions
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32
libretroshare/src/util/rsid.h
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@ -37,7 +37,10 @@
template<uint32_t ID_SIZE_IN_BYTES,uint32_t UNIQUE_IDENTIFIER> class t_RsGenericIdType template<uint32_t ID_SIZE_IN_BYTES,uint32_t UNIQUE_IDENTIFIER> class t_RsGenericIdType
{ {
public: public:
t_RsGenericIdType() { memset(bytes,0,ID_SIZE_IN_BYTES) ;} t_RsGenericIdType()
{
memset(bytes,0,ID_SIZE_IN_BYTES) ; // by default, ids are set to null()
}
virtual ~t_RsGenericIdType() {} virtual ~t_RsGenericIdType() {}
// Explicit constructor from a hexadecimal string // Explicit constructor from a hexadecimal string
@ -66,26 +69,17 @@ template<uint32_t ID_SIZE_IN_BYTES,uint32_t UNIQUE_IDENTIFIER> class t_RsGeneric
const unsigned char *toByteArray() const { return &bytes[0] ; } const unsigned char *toByteArray() const { return &bytes[0] ; }
static const uint32_t SIZE_IN_BYTES = ID_SIZE_IN_BYTES ; static const uint32_t SIZE_IN_BYTES = ID_SIZE_IN_BYTES ;
bool operator==(const t_RsGenericIdType<ID_SIZE_IN_BYTES,UNIQUE_IDENTIFIER>& fp) const inline bool operator==(const t_RsGenericIdType<ID_SIZE_IN_BYTES,UNIQUE_IDENTIFIER>& fp) const { return !memcmp(bytes,fp.bytes,ID_SIZE_IN_BYTES) ; }
{ inline bool operator!=(const t_RsGenericIdType<ID_SIZE_IN_BYTES,UNIQUE_IDENTIFIER>& fp) const { return !!memcmp(bytes,fp.bytes,ID_SIZE_IN_BYTES); }
for(uint32_t i=0;i<ID_SIZE_IN_BYTES;++i) inline bool operator< (const t_RsGenericIdType<ID_SIZE_IN_BYTES,UNIQUE_IDENTIFIER>& fp) const { return (memcmp(bytes,fp.bytes,ID_SIZE_IN_BYTES) < 0) ; }
if(fp.bytes[i] != bytes[i])
inline bool isNull() const
{
for(int i=0;i<SIZE_IN_BYTES;++i)
if(bytes[i] != 0)
return false ; return false ;
return true ; return true ;
} }
bool operator!=(const t_RsGenericIdType<ID_SIZE_IN_BYTES,UNIQUE_IDENTIFIER>& fp) const
{
return !operator==(fp) ;
}
bool operator<(const t_RsGenericIdType<ID_SIZE_IN_BYTES,UNIQUE_IDENTIFIER>& fp) const
{
for(uint32_t i=0;i<ID_SIZE_IN_BYTES;++i)
if(fp.bytes[i] != bytes[i])
return (bytes[i] < fp.bytes[i]);
return false;
}
private: private:
unsigned char bytes[ID_SIZE_IN_BYTES] ; unsigned char bytes[ID_SIZE_IN_BYTES] ;
}; };