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jlaustill

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c-next
A memory safe C for embedded systems — transpiles to clean, readable C99

C · 4 stars

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sizeof of arithmetic emits a clamp helper call inside the generated sizeof
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bug code-generator operators

Difficulty 4/5 3-5 days Newbie friendliness 18/100

jlaustill/c-next#1947 · Opened Oct 8, 2026

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A function returning a function-as-type emits typedef struct tickSource tickSource and tickSource pick(void): exit 0, uncompilable C (ADR-029 is silent on it)
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bug code-generator types

Difficulty 5/5 Over a week Newbie friendliness 35/100

jlaustill/c-next#1945 · Opened Oct 8, 2026

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A C struct parameter without a typedef gets struct Point* in the .c but Point* in the .h prototype: exit 0, and gcc rejects the header
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bug code-generator interop

Difficulty 3/5 1-2 days Newbie friendliness 58/100

jlaustill/c-next#1944 · Opened Oct 8, 2026

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sizeof of an array type: a statement emits sizeof(uint8_t), dropping the dimension (exit 0); an array dimension emits the C-Next spelling sizeof(u8[N--1]), which gcc rejects
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bug code-generator types

Difficulty 5/5 Over a week Newbie friendliness 35/100

jlaustill/c-next#1940 · Opened Oct 8, 2026

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.c includes <stdint.h>/<stdbool.h> for types it never emits: 256 files include stdint unused (166 only for main's u32), 58 include stdbool unused
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tech-debt

Difficulty 4/5 3-5 days Newbie friendliness 58/100

jlaustill/c-next#1937 · 1 comment · Opened Oct 7, 2026

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Release v0.3.2
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epic priority: high

Difficulty 5/5 Over a week Newbie friendliness 10/100

jlaustill/c-next#1933 · Opened Oct 7, 2026

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One decision, one implementation: retire the duplicate code paths outside #1313's layer split
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epic tech-debt

Difficulty 5/5 Over a week Newbie friendliness 15/100

jlaustill/c-next#1931 · Opened Oct 7, 2026

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Discover carries headerEdges that nothing reads since #1914 moved E0507/E0517 to the compiler graph
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tech-debt

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

jlaustill/c-next#1930 · Opened Oct 7, 2026

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The plan's toolchain requirements are copied into the ToolchainRequirements accumulator so the banner reads a copy, marked 'not yet' in a comment naming the deleted CodeGenState
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tech-debt

Difficulty 4/5 3-5 days Newbie friendliness 48/100

jlaustill/c-next#1928 · Opened Oct 7, 2026

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The host still runs 1.1's header macro dumps after Discover returns, and keeps the result on two orchestrator fields instead of the SourceGraph
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tech-debt

Difficulty 4/5 3-5 days Newbie friendliness 48/100

jlaustill/c-next#1926 · Opened Oct 7, 2026

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3-Render now authors E0203 and holds the header-facts capture, whose own docstring says it decides a header's content
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tech-debt

Difficulty 4/5 3-5 days Newbie friendliness 42/100

jlaustill/c-next#1925 · Opened Oct 7, 2026

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README §1's interior-import rule has no gate: 239 cross-root imports reach past a root's entry
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tech-debt

Difficulty 4/5 3-5 days Newbie friendliness 38/100

jlaustill/c-next#1924 · Opened Oct 7, 2026

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pre-push hook runs the full quality suite on a ref-deletion push, so deleting a tag needs --no-verify
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bug

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

jlaustill/c-next#1923 · Opened Oct 7, 2026

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utils/ imports PARSE in 18 places though README §1 calls it layer-neutral
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tech-debt

Difficulty 4/5 3-5 days Newbie friendliness 45/100

jlaustill/c-next#1921 · Opened Oct 7, 2026

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release:milestones: a miscased release milestone (V0.4.1) is silently dropped from `preparing`, which hides the two-untagged-releases refusal
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bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

jlaustill/c-next#1920 · 1 comment · Opened Oct 7, 2026

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Header include walk resolves `<x.h>` to a different file than the C compile opens
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bug interop

Difficulty 3/5 1-2 days Newbie friendliness 72/100

jlaustill/c-next#1917 · Opened Oct 7, 2026

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Symbol cache keys a header on its own mtime: a header whose #if reads a macro from an included header keeps stale symbols when that header changes (E0422 warm, exit 0 with --no-cache)
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bug interop

Difficulty 3/5 1-2 days Newbie friendliness 70/100

jlaustill/c-next#1916 · Opened Oct 7, 2026

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The -imacros retry borrows macros from headers a C compile never opens
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bug interop

Difficulty 3/5 1-2 days Newbie friendliness 76/100

jlaustill/c-next#1915 · Opened Oct 7, 2026

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issue-check picks the release with the most open issues; the next-issue playbook picks the lowest version
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documentation tech-debt

Difficulty 3/5 Half a day Newbie friendliness 70/100

jlaustill/c-next#1912 · 1 comment · Opened Oct 7, 2026

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Nine IGeneratorInput test mocks are double-cast, and six still set typeRegistry/constValues/knownScopes, which the interface no longer declares
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priority: low tech-debt testing

Difficulty 3/5 Half a day Newbie friendliness 82/100

jlaustill/c-next#1911 · Opened Oct 7, 2026

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An f64 value narrows to f32 silently at every conversion site: f32 x <- m with f64 m is exit 0, while u8 <- u16 is E0869
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bug priority: medium safety types

Difficulty 4/5 3-5 days Newbie friendliness 66/100

jlaustill/c-next#1910 · Opened Oct 7, 2026

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C++ saturating cast compares against its limit through a C-style cast: (u32)k emits ((float)UINT32_MAX) beside static_cast<uint32_t>
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bug code-generator priority: low

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

jlaustill/c-next#1909 · Opened Oct 7, 2026

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A sibling's C header variable types a file's own integer macro: (f32)raw * OFFSET is a false E0810 once an un-included sibling declares uint32_t OFFSET
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bug interop priority: medium types

Difficulty 4/5 3-5 days Newbie friendliness 66/100

jlaustill/c-next#1908 · Opened Oct 6, 2026

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Writing a string into a cell of a struct string<N>[A][B] field (g.cells[1][2] <- "ab") emits an array assignment -- uncompilable, exit 0
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bug code-generator postfix-chains priority: high

Difficulty 3/5 1-2 days Newbie friendliness 65/100

jlaustill/c-next#1904 · Opened Oct 6, 2026

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A scope string-array element write through this. emits the unqualified name (tags[0], not Lab__tags[0]) -- uncompilable, exit 0
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bug code-generator priority: high scope

Difficulty 3/5 1-2 days Newbie friendliness 72/100

jlaustill/c-next#1903 · Opened Oct 6, 2026

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Writing an exact-capacity string into a string<N>[M] element emits strncpy with no terminator: -Wstringop-truncation under -Werror
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bug code-generator priority: medium

Difficulty 3/5 1-2 days Newbie friendliness 68/100

jlaustill/c-next#1902 · Opened Oct 6, 2026

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Passing a string-array element to a string<N> parameter emits &names[0] in C mode (incompatible pointer type, exit 0)
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bug code-generator priority: high

Difficulty 3/5 1-2 days Newbie friendliness 56/100

jlaustill/c-next#1900 · Opened Oct 6, 2026

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Assigning one string to a whole string array (names <- "x") is accepted at exit 0 and emits an array assignment
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bug code-generator priority: high types

Difficulty 4/5 3-5 days Newbie friendliness 45/100

jlaustill/c-next#1899 · Opened Oct 6, 2026

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Writing a string to a nested struct's string field (o.inner.name <- "hi") emits a C array assignment at exit 0
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bug code-generator postfix-chains priority: high

Difficulty 3/5 1-2 days Newbie friendliness 56/100

jlaustill/c-next#1898 · Opened Oct 6, 2026

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A header macro that dereferences a pointer (AVR `PINB` = `*(volatile uint8_t *)0x23`) is read as a plain value, with no address, type or access mode C-Next can check
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embedded enhancement interop safety

Difficulty 5/5 Over a week Newbie friendliness 35/100

jlaustill/c-next#1889 · Opened Oct 4, 2026

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ADR-049 Q4 rejects atomic on arrays and structs, but both are accepted and lowered to volatile: counters[0] +<- 1 is an interruptible RMW, exit 0
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bug embedded safety validation-bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

jlaustill/c-next#1888 · Opened Oct 4, 2026

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ADR-044 clamp is dropped for array elements: levels[1] +<- 10 and levels[0] <- levels[0] + 10 on a u8 element both wrap to 4, exit 0
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bug code-generator priority: high safety types

Difficulty 4/5 3-5 days Newbie friendliness 55/100

jlaustill/c-next#1887 · Opened Oct 4, 2026

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validate:c: baselined cross-TU MISRA findings (Rules 5.8, 8.7) for a file differ between the batch and the file analyzed alone
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MISRA Violations priority: low tech-debt testing

Difficulty 5/5 Over a week Newbie friendliness 35/100

jlaustill/c-next#1884 · Opened Oct 4, 2026

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Header identity from compiler output cannot be exact for clang's dependency escaping and for forged line markers (#1542 R44/R47 residuals)
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bug interop

Difficulty 5/5 Over a week Newbie friendliness 35/100

jlaustill/c-next#1883 · Opened Oct 4, 2026

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A header macro reached through another .cnx is written into the .h without its #include: BUF_SIZE undeclared (exit 0)
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bug code-generator interop

Difficulty 4/5 3-5 days Newbie friendliness 68/100

jlaustill/c-next#1882 · Opened Oct 4, 2026

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A macro array size reached only through another .cnx's include is written into the generated header without that include: 'BUF_SIZE' undeclared (exit 0)
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bug code-generator interop

Difficulty 4/5 3-5 days Newbie friendliness 58/100

jlaustill/c-next#1881 · Opened Oct 4, 2026

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Program.build receives the SymbolTable and also snapshots taken from it (foreign, headerStructFields)
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tech-debt

Difficulty 4/5 3-5 days Newbie friendliness 55/100

jlaustill/c-next#1880 · Opened Oct 4, 2026

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E0800 and E0707 read lone literals, not constant expressions: x / (1 - 1) and while (1 + 1 = 2) pass at exit 0
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bug control-flow operators validation-bug

Difficulty 4/5 1-2 days Newbie friendliness 48/100

jlaustill/c-next#1879 · Opened Oct 3, 2026

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A C header array's bit_length or byte_length cannot size an array: 1.4 has no C type width table (render does)
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bug interop types

Difficulty 5/5 Over a week Newbie friendliness 35/100

jlaustill/c-next#1878 · Opened Oct 3, 2026

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A C header enum member written qualified (EColor.COUNT) reaches C verbatim: invalid C at exit 0
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bug code-generator interop

Difficulty 5/5 Over a week Newbie friendliness 35/100

jlaustill/c-next#1877 · Opened Oct 3, 2026

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E0507 cannot see a C++ header that a .cnx includes as its only header (e.g. <vector> alone): the header unit runs only when some directive resolved
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enhancement interop

Difficulty 5/5 Over a week Newbie friendliness 30/100

jlaustill/c-next#1876 · Opened Oct 3, 2026

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A local const used only as an array dimension is emitted unused: gcc -Wall warns 'unused variable', so -Werror builds fail
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bug code-generator

Difficulty 3/5 1-2 days Newbie friendliness 68/100

jlaustill/c-next#1875 · Opened Oct 3, 2026

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A zero or negative array dimension is accepted: u8[0] and u8[1 - 2] reach C as [0] and [-1] at exit 0
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bug validation-bug

Difficulty 4/5 3-5 days Newbie friendliness 62/100

jlaustill/c-next#1874 · 1 comment · Opened Oct 3, 2026

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HeaderFacts holds every unit's full preprocessor output (system headers included): +28% peak RSS on 61 files; a unit over 50 MB is a misleading E0518
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tech-debt

Difficulty 4/5 3-5 days Newbie friendliness 38/100

jlaustill/c-next#1872 · Opened Oct 3, 2026

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docs/coverage/ is a coverage report frozen at 2026-02-01: 274 tracked files, 96 for paths that no longer exist, nothing regenerates it
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documentation

Difficulty 4/5 3-5 days Newbie friendliness 48/100

jlaustill/c-next#1871 · 1 comment · Opened Oct 3, 2026

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After a #line directive, the declaration line C-Next cites can differ from the physical line (second same-name #line, #line in a comment/skipped block, _Pragma)
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bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

jlaustill/c-next#1870 · 2 comments · Opened Oct 3, 2026

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A C-Next file that declares nothing gets no header, but its includers still #include it: exit 0, "fatal error: relay.h: No such file"
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bug code-generator

Difficulty 4/5 3-5 days Newbie friendliness 58/100

jlaustill/c-next#1868 · Opened Oct 3, 2026

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E0381 fires on `.element_count` / `.byte_length` of an uninitialized struct field array, though ADR-058 makes both constant (a local array is accepted)
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bug validation-bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

jlaustill/c-next#1867 · Opened Oct 3, 2026

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A bare call to a scope member declared only in the includer is accepted, and emits an implicit declaration with the wrong argument shape
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bug scope

Difficulty 5/5 Over a week Newbie friendliness 35/100

jlaustill/c-next#1865 · Opened Oct 3, 2026

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ADR-017 is silent on enum members in arithmetic: `EColor.COUNT + 1` is accepted without a cast in every position
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question

Difficulty 5/5 Over a week Newbie friendliness 30/100

jlaustill/c-next#1864 · Opened Oct 3, 2026

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