diff options
author | Gurusamy Sarathy <gsar@cpan.org> | 2000-01-28 03:43:52 +0000 |
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committer | Gurusamy Sarathy <gsar@cpan.org> | 2000-01-28 03:43:52 +0000 |
commit | 954c1994944eafa74aaac1bab94e820b6e447da9 (patch) | |
tree | afa8c853a6e0f521ecc16ce51a98035eb1b6b6f7 /av.c | |
parent | 030866aa8d0911636ef2210b710f544fd2c85c8e (diff) | |
download | perl-954c1994944eafa74aaac1bab94e820b6e447da9.tar.gz |
autogenerate API listing from comments in the source (from Benjamin
Stuhl <sho_pi@hotmail.com>); fix the markup format to be more
flexible for better readability; add missing docs in sv.c; regenerate
perltoc
p4raw-id: //depot/perl@4915
Diffstat (limited to 'av.c')
-rw-r--r-- | av.c | 119 |
1 files changed, 119 insertions, 0 deletions
@@ -46,6 +46,15 @@ Perl_av_reify(pTHX_ AV *av) AvREAL_on(av); } +/* +=for apidoc av_extend + +Pre-extend an array. The C<key> is the index to which the array should be +extended. + +=cut +*/ + void Perl_av_extend(pTHX_ AV *av, I32 key) { @@ -151,6 +160,19 @@ Perl_av_extend(pTHX_ AV *av, I32 key) } } +/* +=for apidoc av_fetch + +Returns the SV at the specified index in the array. The C<key> is the +index. If C<lval> is set then the fetch will be part of a store. Check +that the return value is non-null before dereferencing it to a C<SV*>. + +See L<Understanding the Magic of Tied Hashes and Arrays> for more information +on how to use this function on tied arrays. + +=cut +*/ + SV** Perl_av_fetch(pTHX_ register AV *av, I32 key, I32 lval) { @@ -198,6 +220,23 @@ Perl_av_fetch(pTHX_ register AV *av, I32 key, I32 lval) return &AvARRAY(av)[key]; } +/* +=for apidoc av_store + +Stores an SV in an array. The array index is specified as C<key>. The +return value will be NULL if the operation failed or if the value did not +need to be actually stored within the array (as in the case of tied +arrays). Otherwise it can be dereferenced to get the original C<SV*>. Note +that the caller is responsible for suitably incrementing the reference +count of C<val> before the call, and decrementing it if the function +returned NULL. + +See L<Understanding the Magic of Tied Hashes and Arrays> for +more information on how to use this function on tied arrays. + +=cut +*/ + SV** Perl_av_store(pTHX_ register AV *av, I32 key, SV *val) { @@ -257,6 +296,14 @@ Perl_av_store(pTHX_ register AV *av, I32 key, SV *val) return &ary[key]; } +/* +=for apidoc newAV + +Creates a new AV. The reference count is set to 1. + +=cut +*/ + AV * Perl_newAV(pTHX) { @@ -271,6 +318,16 @@ Perl_newAV(pTHX) return av; } +/* +=for apidoc av_make + +Creates a new AV and populates it with a list of SVs. The SVs are copied +into the array, so they may be freed after the call to av_make. The new AV +will have a reference count of 1. + +=cut +*/ + AV * Perl_av_make(pTHX_ register I32 size, register SV **strp) { @@ -320,6 +377,15 @@ Perl_av_fake(pTHX_ register I32 size, register SV **strp) return av; } +/* +=for apidoc av_clear + +Clears an array, making it empty. Does not free the memory used by the +array itself. + +=cut +*/ + void Perl_av_clear(pTHX_ register AV *av) { @@ -361,6 +427,14 @@ Perl_av_clear(pTHX_ register AV *av) } +/* +=for apidoc av_undef + +Undefines the array. Frees the memory used by the array itself. + +=cut +*/ + void Perl_av_undef(pTHX_ register AV *av) { @@ -389,6 +463,15 @@ Perl_av_undef(pTHX_ register AV *av) } } +/* +=for apidoc av_push + +Pushes an SV onto the end of the array. The array will grow automatically +to accommodate the addition. + +=cut +*/ + void Perl_av_push(pTHX_ register AV *av, SV *val) { @@ -415,6 +498,15 @@ Perl_av_push(pTHX_ register AV *av, SV *val) av_store(av,AvFILLp(av)+1,val); } +/* +=for apidoc av_pop + +Pops an SV off the end of the array. Returns C<&PL_sv_undef> if the array +is empty. + +=cut +*/ + SV * Perl_av_pop(pTHX_ register AV *av) { @@ -448,6 +540,16 @@ Perl_av_pop(pTHX_ register AV *av) return retval; } +/* +=for apidoc av_unshift + +Unshift the given number of C<undef> values onto the beginning of the +array. The array will grow automatically to accommodate the addition. You +must then use C<av_store> to assign values to these new elements. + +=cut +*/ + void Perl_av_unshift(pTHX_ register AV *av, register I32 num) { @@ -501,6 +603,14 @@ Perl_av_unshift(pTHX_ register AV *av, register I32 num) } } +/* +=for apidoc av_shift + +Shifts an SV off the beginning of the array. + +=cut +*/ + SV * Perl_av_shift(pTHX_ register AV *av) { @@ -538,6 +648,15 @@ Perl_av_shift(pTHX_ register AV *av) return retval; } +/* +=for apidoc av_len + +Returns the highest index in the array. Returns -1 if the array is +empty. + +=cut +*/ + I32 Perl_av_len(pTHX_ register AV *av) { |