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Restore round-to-even behavior.

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John Lindgren
2017-11-07 23:25:27 -05:00
parent 2d4e32cda1
commit a6d3f3a59a
2 changed files with 56 additions and 33 deletions
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19
src/unity.c
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@@ -292,7 +292,7 @@ void UnityPrintFloat(const UNITY_DOUBLE input_number)
else if (isinf(number)) UnityPrint("inf");
else
{
UNITY_INT32 n = 0;
UNITY_INT32 n_int = 0, n;
int exponent = 0;
int decimals, digits;
char buf[16];
@@ -330,16 +330,25 @@ void UnityPrintFloat(const UNITY_DOUBLE input_number)
* freeing up significant bits in the fractional part.
*/
UNITY_DOUBLE factor = 1.0f;
n = (UNITY_INT32)number;
number -= (UNITY_DOUBLE)n;
n_int = (UNITY_INT32)number;
number -= (UNITY_DOUBLE)n_int;
while (n < min_scaled) { n *= 10; factor *= 10.0f; exponent--; }
while (n_int < min_scaled) { n_int *= 10; factor *= 10.0f; exponent--; }
number *= factor;
}
/* round to nearest integer */
n += ((UNITY_INT32)(number + number) + 1) / 2;
n = ((UNITY_INT32)(number + number) + 1) / 2;
#ifndef UNITY_ROUND_TIES_AWAY_FROM_ZERO
/* round to even if exactly between two integers */
if ((n & 1) && ((UNITY_DOUBLE)n - number == 0.5f))
n--;
#endif
n += n_int;
if (n >= max_scaled)
{
n = min_scaled;