varname, = arrname.map(...)

varname, _ = arrname.map(...)

Internals and C Language Interface

perlembed           Perl ways to embed perl in your C or C++ application
perldebguts         Perl debugging guts and tips
perlxstut           Perl XS tutorial
perlxs              Perl XS application programming interface
perlxstypemap       Perl XS C/Perl type conversion tools
perlclib            Internal replacements for standard C library functions
perlguts            Perl internal functions for those doing extensions
perlcall            Perl calling conventions from C
perlmroapi          Perl method resolution plugin interface
perlreapi           Perl regular expression plugin interface
perlreguts          Perl regular expression engine internals
 
perlapi             Perl API listing (autogenerated)
perlintern          Perl internal functions (autogenerated)
perliol             C API for Perl's implementation of IO in Layers
perlapio            Perl internal IO abstraction interface
 
perlhack            Perl hackers guide
perlsource          Guide to the Perl source tree
perlinterp          Overview of the Perl interpreter source and how it works
perlhacktut         Walk through the creation of a simple C code patch
perlhacktips        Tips for Perl core C code hacking
perlpolicy          Perl development policies
perlgit             Using git with the Perl repository