PCRE2 - Perl-compatible regular expressions (revised API)

If code is NULL, this function does nothing. Otherwise, code must point to a compiled pattern. This function frees its memory, including any memory used by the JIT compiler. If the compiled pattern was created by a call to pcre2_code_copy_with_tables(), the memory for the character tables is also freed. There is a complete description of the PCRE2 native API in the pcre2api page and a description of the POSIX API in the pcre2posix page. PCRE2 10.45 28 June 2018 PCRE2_CODE_FREE(3)

PCRE2 - Perl-compatible regular expressions (revised API)