Symbian OS Developers

Name

Description

Alloc ( ) AllocL() AllocLC()

Creates and returns an HBufC* initialized with a copy of the descriptor's data.

Compare() CompareF() CompareC()

Compares the descriptor's data with a supplied descriptor.

Find() FindC() FindF()

Searches for the first occurrence of a specified data sequence, with the search beginning at the start of the descriptor.

Name

Description

HasPrefixC()

Compares a possible prefix against the start of the descriptor, using a collated comparison.

Left()

Returns a TPtrC representing the leftmost n characters.

Length()

Returns the length of the data. Do not confuse it with Size (). For narrow descriptors, they return the same value; for wide descriptors, the size is twice the length.

Locate() LocateF() LocateReverse() LocateReverseF()

Searches for the first occurrence of a character within the descriptor's data, starting the search from the leftmost or rightmost position.

Match() MatchC() MatchF()

Searches the descriptor's data for a match with a match pattern supplied in the specified descriptor.

Mid ()

Returns a TPtrC representing the middle n characters from position m.

operator<() operator<=() operator»() operator>=() operator==() operator!=()

Returns a TBool indicating the result of the comparison between the descriptor and a specified descriptor.

operator[] ()

Returns a const TUint& to a specified single data item within the descriptor data. Iterating over a descriptor using operator [ ] is expensive; consider using C++ pointer arithmetic and the TDesC : : Ptr () function instead.

Name

Description

Ptr ( )

Returns a const TUint* to the data represented by the descriptor.

Right()

Returns a TPtrC representing the rightmost n characters.

Size()

Returns the size of the data in bytes; do not confuse it with Length ( ).