String to PChar Conversions
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Long string (AnsiString and UnicodeString) to PChar conversions are not automatic. Some of the differences between strings and PChars can make conversions problematic:
- Long strings are reference-counted, while
- Assigning to a string copies the data, while a
PCharis a pointer to memory.
- Long strings are null-terminated and also contain the length of the string and other information, while
PCharsare simply null-terminated.
Situations in which these differences can cause subtle errors are discussed in the following topics: