diff options
Diffstat (limited to 'lib/std/fltfmt.myr')
| -rw-r--r-- | lib/std/fltfmt.myr | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/lib/std/fltfmt.myr b/lib/std/fltfmt.myr index 5019201..6a51ef4 100644 --- a/lib/std/fltfmt.myr +++ b/lib/std/fltfmt.myr @@ -24,7 +24,22 @@ const Fltbias = 127 const flt64bfmt = {sb, val, mode, precision var isneg, exp, mant + if isnan(val) + sbputs(sb, "NaN") + -> void + ;; + (isneg, exp, mant) = flt64explode(val) + + if exp > Dblbias + if isneg + std.sbputs(sb, "-Inf") + else + std.sbputs(sb, "Inf") + ;; + -> void + ;; + exp = max(exp, 1 - Dblbias) dragon4(sb, isneg, mant, exp - 52, Dblbias, mode, precision) } @@ -32,7 +47,22 @@ const flt64bfmt = {sb, val, mode, precision const flt32bfmt = {sb, val, mode, precision var isneg, exp, mant + if isnan(val) + sbputs(sb, "NaN") + -> void + ;; + (isneg, exp, mant) = flt32explode(val) + + if (exp : int64) > Fltbias + if isneg + std.sbputs(sb, "-Inf") + else + std.sbputs(sb, "Inf") + ;; + -> void + ;; + exp = (max((exp : int64), 1 - Fltbias) : int32) dragon4(sb, isneg, (mant : uint64), (exp - 23 : int64), Fltbias, mode, precision) } |