Section (3) pcre2_code_copy
PCRE2 — Perl-compatible regular expressions (revised API)
This function makes a copy of the memory used for a
compiled pattern, excluding any memory used by the JIT
compiler. Without a subsequent call to
pcre2_jit_compile(), the copy can be used
only for non-JIT matching. The pointer to the character
tables is copied, not the tables themselves (see
pcre2_code_copy_with_tables()). The yield
of the function is NULL if
is NULL or if sufficient memory cannot be obtained.
This manual page is taken from the PCRE library, which is distributed under the BSD license.