[B-Howell]

What

The 22 public get overloads of num_get<char, istreambuf_iterator<char>> and num_get<wchar_t, istreambuf_iterator<wchar_t>> in libSceLibcInternal threw from the Pending3 placeholders in Err.cpp. They now return do_get through the facet's own vtable. These are the calls std::istream and std::wistream operator>> make through use_facet<num_get<...>> for bool, the integer types, the floating types and void*.

Value type	Slot	char NID (was)	wchar_t NID (was)
bool	0x20	OWO5cpNw3NA (Pending3_056)	vW-nnV62ea4 (Pending3_081)
unsigned short	0x28	gozsp4urvq8 (Pending3_063)	bZ+lKHGvOr8 (Pending3_088)
unsigned int	0x30	N1VqUWz2OEI (Pending3_060)	Y3hBU5FYmhM (Pending3_085)
long	0x38	I2UzwkwwEPs (Pending3_061)	-m2YPwVCwJQ (Pending3_086)
unsigned long	0x40	2bfL3yIBi5k (Pending3_062)	94ZLp2+AOq0 (Pending3_087)
long long	0x48	4hiQK82QuLc (Pending3_064)	cG5hQhjFGog (Pending3_089)
unsigned long long	0x50	eZfFLyWCkvg (Pending3_065)	banNSumaAZ0 (Pending3_090)
float	0x58	6RGkooTERsE (Pending3_059)	2mb8FYgER+E (Pending3_084)
double	0x60	mAwXCpkWaYc (Pending3_057)	+hjXHfvy1Mg (Pending3_082)
long double	0x68	wUCRGap1j0U (Pending3_058)	xLZr4GJRMLo (Pending3_083)
void*	0x70	my9ujasm6-0 (Pending3_055)	zomvAQ5RFdA (Pending3_080)

Each NID matches tools/nid_names.py compute_nid of its mangled name, for example _ZNKSt7num_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE3getES3_S3_RSt8ios_baseRNSt5_IosbIiE8_IostateERb gives OWO5cpNw3NA. The others differ in the character type (Ic/Iw) and the last letters (t, j, l, m, x, y, f, d, e, Pv). All 22 were checked.

What each get does:

• [facet.num.get.members]: get returns do_get(in, end, str, err, val). The first microsoft/STL commit does the same for all eleven overloads (xlocnum L308-L361): return do_get(_First, _Last, _Iosbase, _State, _Val);.
• The forwarder calls the slot for its value type in the vtable of the facet it is given, so a derived facet's override is reached.

The slot order is an inference. The console's libSceLibcInternal.sprx was not read. The standard synopsis ([locale.num.get]) declares do_get for bool, long, long long, unsigned short, unsigned int, unsigned long, unsigned long long, float, double, long double and void*. This PR uses the microsoft/STL (Dinkumware) order instead, the order of the do_get declarations in xlocnum L365-L636: bool, unsigned short, unsigned int, long, unsigned long, long long, unsigned long long, float, double, long double, void*, starting after the four FacetVtable slots at 0x20. The evidence for that choice is indirect:

• main's GuestLocale::NumPutVtable, which libc hands to guests as g_numPutVtable (LocaleSupport.cpp), already lays out num_put in the microsoft/STL order (putLong, putUnsignedLong, putLongLong), not the standard's (long, long long, unsigned long);
• libc declares _ZTVSt7num_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE and _ZTVSt7num_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE with 17 entries: offset-to-top and RTTI, 4 facet slots and 11 do_get slots. That fixes the count, not the order.

If the console's order differs, the forwarders call the wrong do_get. The debt entry says so, and the test pins every slot, so a later change to the order fails it.

Changes:

• GuestLocale.hpp: new GuestLocale::InputIterator, an opaque, trivially copyable 16-byte value for istreambuf_iterator, with static_asserts on its size and triviality. Nothing reads its fields. istreambuf_iterator<char> and istreambuf_iterator<wchar_t> are both 16 bytes (pointer, bool, element padded; the members are _Strbuf, _Got and _Val in streambuf L519-L521) with no user-declared copy constructor or destructor, so both are passed and returned in two integer registers like this struct.
• GuestLocale.hpp: new GuestLocale::NumGetVtable with all eleven slots, a static_assert on every slot offset (0x20 to 0x70) and on the size (0x78). The ios_base::iostate& argument is _Iosb<int>::_Iostate& in the mangled names and is passed as std::int32_t*.
• New NumGet.cpp with the 22 forwarders, and the 22 placeholders removed from Err.cpp.
• docs/dev/debt/libSceLibcInternal.md: the 22 per-NID "prototype and behavior are unverified" entries are removed and one entry records what is still open.

The InputIterator block in GuestLocale.hpp (and its <type_traits> include) is byte-for-byte the block of the time_get and money_get/money_put PRs from the same batch, at the same place, so the three merge in any order. git merge-tree --write-tree of each pair, of all three, and of each against main is clean, and the merged header has one InputIterator.

Still not done:

• Neither libc nor libSceLibcInternal builds a num_get facet or implements do_get, so today these calls reach only a facet the title provides. The facet constructors, _Init, _Getcat, _Getifld, _Getffld and the do_get members still throw.
• No title was seen calling these exports.

Tested

No title was run. I added the guest test guest_libc_internal_num_get (core/libs/tests/GuestLibcInternalNumGet.cpp). It loads libSceLibcInternal, calls each of the 22 exports with a facet whose vtable records every call, and checks:

• each of the 22 exports calls the do_get slot of its own value type exactly once (every slot of the vtable records a different index, so a forwarder bound to a wrong slot, or a wrong slot order, fails);
• the facet, both 16-byte iterators word for word, the stream, the state pointer and the value pointer arrive unchanged;
• the export returns the iterator do_get returns and leaves the state do_get wrote;
• with a second vtable standing in for a derived facet, every export reaches the derived slot, not a fixed one.
  The header static_asserts pin every slot offset (0x20 to 0x70) and the size.

Results:

• Windows 11, WinLibs GCC 15.2.0 (MinGW), Release: ctest -R '^guest_libc_internal_num_get$' passed 3 of 3 runs (1/1 each), and once more after the negative-control restore. public_headers passed.
• Linux, WSL Ubuntu 22.04, GCC 11.4.0, Release: a fresh clone of b11c7bf84f with this commit applied (git write-tree equal to the commit's tree) passed ctest -R '^(guest_libc_internal_num_get|public_headers)$' 3 of 3 runs (2/2 each), and 1 of 1 after the restore.
• Negative control: with main's Err.cpp put back and NumGet.cpp emptied, keeping the new test, the test fails on both hosts with sceLibcInternalPending3_056_nid_no_patch not implemented (Windows exit code 0xc0000409, Linux subprocess aborted).
• Conventions: python3 tools/check_conventions.py --base origin/main with this title and body: "All conventions checks passed."
• Progress: tools/progress.py collect_libraries() for libSceLibcInternal: done 92 to 114 (+22), todo 1045 to 1023. Overall done 9921 to 9943 of 37146; the total does not change, so no new todo.
• Overlap: python3 tools/pr_overlap.py --branch feat/r4-num-get-members failed closed. It reported one PR with conflicting lines: our own feat(libSceLibcInternal): implement the collate<wchar_t> members #15712 (collate<wchar_t> members), whose Pending3_049-054 removals in Err.cpp and debt lines sit right next to this PR's. It implements different functions; whichever lands second rebases. No PR has the same exports or new files. It could not compare 8 PRs that conflict with main: feat(aot): consolidate native ARM64 compiler, runtime and consumers #5021, fix(relinker): match AppContent utility import to provider #13486, feat(libSceLibcInternal): implement the msun trigonometric kernels #13778, feat(libSceLibcInternal): implement floating-point word access #13782, docs(debt): separate entries with blank lines and drop derived export totals #14212, feat(libSceLibcInternal): implement zero-return showmanyc exports #14401, feat(libSceLibcInternal): implement the placement operator delete and delete[] #14837 and feat(libSceLibcInternal): implement std::_MP_Add, _MP_Get, _MP_Mul and _MP_Rem #14936. I grepped the added and removed lines of every file patch of each one (from the REST files API; for docs(debt): separate entries with blank lines and drop derived export totals #14212's docs/dev/debt/libSceLibcInternal.md, whose patch the API omits, git diff of the fetched PR head against its merge base) for the 44 NIDs of this batch, the Pending3_055-065, Pending3_080-090 and Pending4 stub names it removes, the num_get/time_get/money_get/money_put member mangled names, InputIterator, NumGetVtable, TimeGetVtable, MoneyGetVtable, MoneyPutVtable and the new file names. None has a match. feat(libSceLibcInternal): implement the collate<wchar_t> members #15712's lines have no match either.

Checklist

• Based on current main; no other open PR implements the same functions
• One topic per PR; follow-ups go in a new PR
• No comments in code except technical debt
• Unimplemented paths throw (NotImplemented_nid_no_patch); silent stubs are listed under Silent stubs in their library's technical debt file
• No notes, investigation .md files or images added to the repository (attach them to this PR)
• New third-party code is a submodule built from source
• Generic behaviour, not specific to one title
• Depends on: none
• Fixes: none
• Unblocks: none
• GPUs tested: n/a
• AI-assisted: yes

🤖 Generated with Claude Code

[github-actions]

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[github-actions]

Progress report (b11c7bf → 1842d9b)

📈 System libraries: 26.77% (+0.06%, +22 implemented, -22 removed functions)

✅ 22 implemented

Library	Name
libSceLibcInternal	sceLibcInternalNumGetBool_nid_no_patch
libSceLibcInternal	sceLibcInternalNumGetDouble_nid_no_patch
libSceLibcInternal	sceLibcInternalNumGetFloat_nid_no_patch
libSceLibcInternal	sceLibcInternalNumGetLongDouble_nid_no_patch
libSceLibcInternal	sceLibcInternalNumGetLongLong_nid_no_patch
libSceLibcInternal	sceLibcInternalNumGetLong_nid_no_patch
libSceLibcInternal	sceLibcInternalNumGetPointer_nid_no_patch
libSceLibcInternal	sceLibcInternalNumGetUnsignedInt_nid_no_patch
libSceLibcInternal	sceLibcInternalNumGetUnsignedLongLong_nid_no_patch
libSceLibcInternal	sceLibcInternalNumGetUnsignedLong_nid_no_patch
libSceLibcInternal	sceLibcInternalNumGetUnsignedShort_nid_no_patch
libSceLibcInternal	sceLibcInternalWideNumGetBool_nid_no_patch
libSceLibcInternal	sceLibcInternalWideNumGetDouble_nid_no_patch
libSceLibcInternal	sceLibcInternalWideNumGetFloat_nid_no_patch
libSceLibcInternal	sceLibcInternalWideNumGetLongDouble_nid_no_patch
libSceLibcInternal	sceLibcInternalWideNumGetLongLong_nid_no_patch
libSceLibcInternal	sceLibcInternalWideNumGetLong_nid_no_patch
libSceLibcInternal	sceLibcInternalWideNumGetPointer_nid_no_patch
libSceLibcInternal	sceLibcInternalWideNumGetUnsignedInt_nid_no_patch
libSceLibcInternal	sceLibcInternalWideNumGetUnsignedLongLong_nid_no_patch
libSceLibcInternal	sceLibcInternalWideNumGetUnsignedLong_nid_no_patch
libSceLibcInternal	sceLibcInternalWideNumGetUnsignedShort_nid_no_patch

🗑️ 22 removed

Library	Name
libSceLibcInternal	sceLibcInternalPending3_055_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_056_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_057_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_058_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_059_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_060_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_061_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_062_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_063_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_064_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_065_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_080_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_081_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_082_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_083_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_084_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_085_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_086_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_087_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_088_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_089_nid_no_patch
libSceLibcInternal	sceLibcInternalPending3_090_nid_no_patch

Changed libraries (implemented exports)

Library	Before	After	Change
libSceLibcInternal	92/1137 (8.09%)	114/1137 (10.03%)	+1.93%