{
  "schema": "ailang/v0",
  "name": "float_to_str_smoke",
  "imports": [],
  "defs": [
    {
      "kind": "fn",
      "name": "main",
      "type": {
        "k": "fn",
        "params": [],
        "ret": { "k": "con", "name": "Unit" },
        "effects": ["IO"]
      },
      "params": [],
      "doc": "Iter hs.4: smoke pin for the float_to_str heap-Str builtin. `do io/print_str(float_to_str(3.5))` builds through the whole pipeline (checker resolves float_to_str:(Float)->Str, codegen lowers to call ptr @ailang_float_to_str(double 3.5), runtime/str.c's ailang_float_to_str snprintfs into a heap-Str slab via libc %g, io/print_str's @puts prints from the bytes pointer at offset 8). The exact rendering of 3.5 is libc-target-dependent; on the dev target's clang+glibc with default C locale it is the three bytes `3.5`. Single-value smoke; NaN / +Inf / -Inf edge cases are deferred per the hs.4 plan.",
      "body": {
        "t": "do",
        "op": "io/print_str",
        "args": [
          {
            "t": "app",
            "fn": { "t": "var", "name": "float_to_str" },
            "args": [{ "t": "lit", "lit": { "kind": "float", "bits": "400c000000000000" } }]
          }
        ]
      }
    }
  ]
}