fix(stdlib): Fix float printing in dtoa (#1165)

grain-lang · Apr 6, 2022 · 2987210 · 2987210
1 parent 88060dd
commit 2987210
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Showing 2 changed files with 4 additions and 5 deletions.
diff --git a/compiler/test/suites/numbers.re b/compiler/test/suites/numbers.re
@@ -28,7 +28,8 @@ describe("numbers", ({test, testSkip}) => {
   assertRun("numbers10", "print(-2 / 4)", "-1/2\n");
   assertRun("numbers11", "print(2 / -4)", "-1/2\n");
   assertRun("numbers12", "print(-2 / -4)", "1/2\n");
-  assertCompileError("numbers13", "9 / 0", "denominator of zero");
+  assertRun("numbers13", "print(1e3)", "1000.0\n");
+  assertCompileError("numbers14", "9 / 0", "denominator of zero");
   // basic syntax tests
   assertRun("number_syntax1", "print(1.2)", "1.2\n");
   assertRun("number_syntax2", "print(1.)", "1.0\n");

diff --git a/stdlib/runtime/numberUtils.gr b/stdlib/runtime/numberUtils.gr
@@ -1161,7 +1161,7 @@ let grisuRound = (buffer, len, delta, rest, ten_kappa, wp_w) => {
 }
 
 @unsafe
-let genDigits = (buffer, w_frc, w_exp, mp_frc, mp_exp, delta, sign) => {
+let genDigits = (buffer, w_frc, mp_frc, mp_exp, delta, sign) => {
   let mut delta = delta
   let one_exp = 0n - mp_exp
   let one_frc = WasmI64.shl(1N, WasmI64.extendI32U(one_exp))
@@ -1284,7 +1284,6 @@ let genDigits = (buffer, w_frc, w_exp, mp_frc, mp_exp, delta, sign) => {
         break
       }
     }
-
   len
 }
 
@@ -1355,15 +1354,14 @@ let grisu2 = (value, buffer, sign) => {
   let exp_pow = _exp_pow
 
   let w_frc = umul64f(frc, frc_pow)
-  let w_exp = umul64e(exp, exp_pow)
 
   let wp_frc = WasmI64.sub(umul64f(_frc_plus, frc_pow), 1N)
   let wp_exp = umul64e(_exp, exp_pow)
 
   let wm_frc = WasmI64.add(umul64f(_frc_minus, frc_pow), 1N)
   let delta = WasmI64.sub(wp_frc, wm_frc)
 
-  genDigits(buffer, w_frc, w_exp, wp_frc, wp_exp, delta, sign)
+  genDigits(buffer, w_frc, wp_frc, wp_exp, delta, sign)
 }
 
 @unsafe