Working with Strings

Go Up to Using the RTL Index

The run-time library provides many specialized string-handling routines specific to a string type. These are routines for strings (AnsiString and UnicodeString), wide strings (WideString), and null-terminated strings (PChars). Routines that deal with null-terminated strings use the null-termination to determine the length of the string. There are no categories of routines listed for ShortString types. However, some built-in compiler routines deal with the ShortString type. These include, for example, the Low and High standard functions. For more details about the various string types, see the Delphi Language Guide Index.

The VCL-RTL run-time library provides many specialized string-handling routines specific to a string type. These are routines for wide strings, AnsiStrings, and null-terminated strings (char *). Routines that deal with null-terminated strings use the null-termination to determine the length of the string. The following topics provide an overview of many of the string-handling routines in the run-time library.

The following topics provide an overview of many of the string-handling routines in the run-time library:

• Wide Character Routines
• Commonly Used Routines for Null-terminated Strings

• Commonly Used Routines for AnsiStrings

• Declaring and Initializing Strings
• Mixing and Converting String Types
• String to PChar Conversions
  • String Dependencies
  • Returning a PChar Local Variable
  • Passing a Local Variable as a PChar
• Compiler Directives for Strings

See Also

• Enabling Applications for Unicode
• Unicode in RAD Studio
• Working with String Lists