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Third Party Unity
提交 0e7eb545 编写于 作者: J John Lindgren
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Rewrite UnityPrintFloat to match printf("%.6g"). 

The existing implementation was not very good:
 - It printed all very small values as "0.000000..."
 - It did not distinguish positive and negative zero
 - In some cases it printed extra garbage digits for single-precision values
   (e.g. 3.9e+30 was printed as 3.90000013+30)

Tests have been updated to check that we now match printf("%.6g") for
1,000,000 randomly chosen values, except for rounding of the 6th digit.
上级 a868b2eb
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Showing with 171 addition and 240 deletion
src/unity.c
浏览文件 @ 0e7eb545
......@@ -235,95 +235,96 @@ void UnityPrintMask(const UNITY_UINT mask, const UNITY_UINT number)
/*-----------------------------------------------*/
#ifndef UNITY_EXCLUDE_FLOAT_PRINT
static void UnityPrintDecimalAndNumberWithLeadingZeros(UNITY_INT32 fraction_part, UNITY_INT32 divisor)
{
UNITY_OUTPUT_CHAR('.');
while (divisor > 0)
{
UNITY_OUTPUT_CHAR('0' + fraction_part / divisor);
fraction_part %= divisor;
divisor /= 10;
if (fraction_part == 0) break; /* Truncate trailing 0's */
}
}
#ifndef UNITY_ROUND_TIES_AWAY_FROM_ZERO
/* If rounds up && remainder 0.5 && result odd && below cutoff for double precision issues */
#define ROUND_TIES_TO_EVEN(orig, num_int, num) \
if (num_int > (num) && (num) - (num_int-1) <= 0.5 && (num_int & 1) == 1 && orig < 1e22) \
num_int -= 1 /* => a tie to round down to even */
#else
#define ROUND_TIES_TO_EVEN(orig, num_int, num) /* Remove macro */
#endif
/* Printing floating point numbers is hard. Some goals of this implementation: works for embedded
* systems, floats or doubles, and has a reasonable format. The key paper in this area,
* 'How to Print Floating-Point Numbers Accurately' by Steele & White, shows an approximation by
* scaling called Dragon 2. This code uses a similar idea. The other core algorithm uses casts and
* floating subtraction to give exact remainders after the decimal, to be scaled into an integer.
* Extra trailing 0's are excluded. The output defaults to rounding to nearest, ties to even. You
* can enable rounding ties away from zero. Note: UNITY_DOUBLE param can typedef to float or double
* The old version required compiling in snprintf. For reference, with a similar format as now:
* char buf[19];
* if (number > 4294967296.0 || -number > 4294967296.0) snprintf(buf, sizeof buf, "%.8e", number);
* else snprintf(buf, sizeof buf, "%.6f", number);
* UnityPrint(buf);
*/
/* This function prints a floating-point value in a format similar to
* printf("%.6g"). It can work with either single- or double-precision,
* but for simplicity, it prints only 6 significant digits in either case.
* Printing more than 6 digits accurately is hard (at least in the single-
* precision case) and isn't attempted here. */
void UnityPrintFloat(const UNITY_DOUBLE input_number)
{
UNITY_DOUBLE number;
UNITY_DOUBLE number = input_number;
if (input_number < 0)
/* print minus sign (including for negative zero) */
if (number < 0.0f || (number == 0.0f && 1.0f / number < 0.0f))
{
UNITY_OUTPUT_CHAR('-');
number = -input_number;
} else
{
number = input_number;
number = -number;
}
if (isnan(number)) UnityPrint(UnityStrNaN);
else if (isinf(number)) UnityPrintLen(UnityStrInf, 3);
else if (number <= 0.0000005 && number > 0) UnityPrint("0.000000..."); /* Small number */
else if (number < 4294967295.9999995) /* Rounded result fits in 32 bits, "%.6f" format */
/* handle zero, NaN, and +/- infinity */
if (number == 0.0f) UnityPrint("0");
else if (isnan(number)) UnityPrint("nan");
else if (isinf(number)) UnityPrint("inf");
else
{
const UNITY_INT32 divisor = 1000000/10;
UNITY_UINT32 integer_part = (UNITY_UINT32)number;
UNITY_INT32 fraction_part = (UNITY_INT32)((number - (UNITY_DOUBLE)integer_part)*1000000.0 + 0.5);
/* Double precision calculation gives best performance for six rounded decimal places */
ROUND_TIES_TO_EVEN(number, fraction_part, (number - (UNITY_DOUBLE)integer_part)*1000000.0);
int exponent = 0;
/* scale up or down by powers of 10 */
while (number < 100000.0f / 1e6f) { number *= 1e6f; exponent -= 6; }
while (number < 100000.0f) { number *= 10.0f; exponent--; }
while (number > 1000000.0f * 1e6f) { number /= 1e6f; exponent += 6; }
while (number > 1000000.0f) { number /= 10.0f; exponent++; }
if (fraction_part == 1000000) /* Carry across the decimal point */
/* round to nearest integer */
UNITY_INT32 n = ((UNITY_INT32)(number + number) + 1) / 2;
if (n > 999999)
{
fraction_part = 0;
integer_part += 1;
n = 100000;
exponent++;
}
UnityPrintNumberUnsigned(integer_part);
UnityPrintDecimalAndNumberWithLeadingZeros(fraction_part, divisor);
}
else /* Number is larger, use exponential format of 9 digits, "%.8e" */
{
const UNITY_INT32 divisor = 1000000000/10;
UNITY_INT32 integer_part;
UNITY_DOUBLE_TYPE divide = 10.0;
int exponent = 9;
/* determine where to place decimal point */
int decimals = (exponent <= 0 && exponent >= -9) ? -exponent : 5;
while (number / divide >= 1000000000.0 - 0.5)
exponent += decimals;
/* truncate trailing zeroes after decimal point */
while (decimals > 0 && n % 10 == 0)
{
divide *= 10;
exponent++;
n /= 10;
decimals--;
}
/* build up buffer in reverse order */
char buf[16];
int digits = 0;
while (n != 0 || digits < decimals + 1)
{
buf[digits++] = (char)('0' + n % 10);
n /= 10;
}
while (digits > 0)
{
if(digits == decimals) UNITY_OUTPUT_CHAR('.');
UNITY_OUTPUT_CHAR(buf[--digits]);
}
/* print exponent if needed */
if (exponent != 0)
{
UNITY_OUTPUT_CHAR('e');
if(exponent < 0)
{
UNITY_OUTPUT_CHAR('-');
exponent = -exponent;
}
else
{
UNITY_OUTPUT_CHAR('+');
}
digits = 0;
while (exponent != 0 || digits < 2)
{
buf[digits++] = (char)('0' + exponent % 10);
exponent /= 10;
}
while (digits > 0)
{
UNITY_OUTPUT_CHAR(buf[--digits]);
}
}
integer_part = (UNITY_INT32)(number / divide + 0.5);
/* Double precision calculation required for float, to produce 9 rounded digits */
ROUND_TIES_TO_EVEN(number, integer_part, number / divide);
UNITY_OUTPUT_CHAR('0' + integer_part / divisor);
UnityPrintDecimalAndNumberWithLeadingZeros(integer_part % divisor, divisor / 10);
UNITY_OUTPUT_CHAR('e');
UNITY_OUTPUT_CHAR('+');
if (exponent < 10) UNITY_OUTPUT_CHAR('0');
UnityPrintNumber(exponent);
}
}
#endif /* ! UNITY_EXCLUDE_FLOAT_PRINT */
......
test/tests/testunity.c
浏览文件 @ 0e7eb545
......@@ -4056,61 +4056,46 @@ void testFloatPrinting(void)
#if defined(UNITY_EXCLUDE_FLOAT_PRINT) || !defined(USING_OUTPUT_SPY)
TEST_IGNORE();
#else
TEST_ASSERT_EQUAL_PRINT_FLOATING("0.0", 0.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("0.000000...", 0.000000499f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("0.000001", 0.00000050000005f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("0.100469", 0.100469499f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.0", 0.9999995f); /*Rounding to int place*/
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.0", 1.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.25", 1.25f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("7.999999", 7.999999f); /*Not rounding*/
TEST_ASSERT_EQUAL_PRINT_FLOATING("16.000002", 16.000002f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("16.000004", 16.000004f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("16.000006", 16.000006f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("4294967040.0", 4294967040.0f); /*Last full print integer*/
TEST_ASSERT_EQUAL_PRINT_FLOATING("0.0", -0.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-0.000000...",-0.000000499f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-0.000001", -0.00000050000005f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-0.100469", -0.100469499f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-1.0", -0.9999995f); /*Rounding to int place*/
TEST_ASSERT_EQUAL_PRINT_FLOATING("-1.0", -1.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-1.25", -1.25f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-7.999999", -7.999999f); /*Not rounding*/
TEST_ASSERT_EQUAL_PRINT_FLOATING("-16.000002", -16.000002f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-16.000004", -16.000004f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-16.000006", -16.000006f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-4294967040.0",-4294967040.0f); /*Last full print integer*/
TEST_ASSERT_EQUAL_PRINT_FLOATING("4.2949673e+09", 4294967296.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("5.0e+09", 5000000000.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("8.0e+09", 8.0e+09f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("8.3099991e+09", 8309999104.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.0e+10", 1.0e+10f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.0e+10", 10000000000.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("0", 0.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("4.99e-07", 0.000000499f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("5e-07", 0.00000050000005f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("0.100469", 0.100469499f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1", 0.9999995f); /*Rounding to int place*/
TEST_ASSERT_EQUAL_PRINT_FLOATING("1", 1.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.25", 1.25f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("7.99999", 7.99999f); /*Not rounding*/
TEST_ASSERT_EQUAL_PRINT_FLOATING("16.0002", 16.0002f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("16.0004", 16.0004f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("16.0006", 16.0006f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("999999", 999999.0f); /*Last full print integer*/
TEST_ASSERT_EQUAL_PRINT_FLOATING("-0", -0.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-4.99e-07", -0.000000499f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-5e-07", -0.00000050000005f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-0.100469", -0.100469499f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-1", -0.9999995f); /*Rounding to int place*/
TEST_ASSERT_EQUAL_PRINT_FLOATING("-1", -1.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-1.25", -1.25f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-7.99999", -7.99999f); /*Not rounding*/
TEST_ASSERT_EQUAL_PRINT_FLOATING("-16.0002", -16.0002f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-16.0004", -16.0004f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-16.0006", -16.0006f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-999999", -999999.0f); /*Last full print integer*/
TEST_ASSERT_EQUAL_PRINT_FLOATING("4.29497e+09", 4294967296.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("5e+09", 5000000000.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("8e+09", 8.0e+09f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("8.31e+09", 8309999104.0f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1e+10", 1.0e+10f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1e+10", 10000000000.0f);
/* Some compilers have trouble with inexact float constants, a float cast works generally */
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.00005499e+10", (float)1.000055e+10f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.10000006e+38", (float)1.10000005e+38f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.63529943e+10", 1.63529943e+10f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("3.40282347e+38", 3.40282346638e38f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.00005e+10", (float)1.000054e+10f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.1e+38", (float)1.10000005e+38f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.6353e+10", 1.63529943e+10f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("3.40282e+38", 3.40282346638e38f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-1.0e+10", -1.0e+10f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-3.40282347e+38",-3.40282346638e38f);
#endif
}
void testFloatPrintingRoundTiesToEven(void)
{
#if defined(UNITY_EXCLUDE_FLOAT_PRINT) || !defined(USING_OUTPUT_SPY)
TEST_IGNORE();
#else
#ifdef UNITY_ROUND_TIES_AWAY_FROM_ZERO
TEST_ASSERT_EQUAL_PRINT_FLOATING("0.007813", 0.0078125f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("0.976563", 0.9765625f);
#else /* Default to Round ties to even */
TEST_ASSERT_EQUAL_PRINT_FLOATING("0.007182", 0.0071825f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("0.976562", 0.9765625f);
#endif
TEST_ASSERT_EQUAL_PRINT_FLOATING("-1e+10", -1.0e+10f);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-3.40282e+38", -3.40282346638e38f);
#endif
}
......@@ -4119,107 +4104,67 @@ void testFloatPrintingInfinityAndNaN(void)
#if defined(UNITY_EXCLUDE_FLOAT_PRINT) || !defined(USING_OUTPUT_SPY)
TEST_IGNORE();
#else
TEST_ASSERT_EQUAL_PRINT_FLOATING("Inf", 1.0f / f_zero);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-Inf", -1.0f / f_zero);
TEST_ASSERT_EQUAL_PRINT_FLOATING("inf", 1.0f / f_zero);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-inf", -1.0f / f_zero);
TEST_ASSERT_EQUAL_PRINT_FLOATING("NaN", 0.0f / f_zero);
TEST_ASSERT_EQUAL_PRINT_FLOATING("nan", 0.0f / f_zero);
#endif
}
#if defined(UNITY_TEST_ALL_FLOATS_PRINT_OK) && defined(USING_OUTPUT_SPY)
static void AllFloatPrinting_LessThan32Bits(void)
static void printFloatValue(float f)
{
char expected[18];
union { float f_value; int32_t int_value; } u;
/* Float representations are laid out in integer order, walk up the list */
for (u.f_value = 0.00000050000005f; u.f_value <= 4294967040.0f; u.int_value += 1)
{
startPutcharSpy();
UnityPrintFloat(u.f_value); /*1.5x as fast as sprintf 5e-7f - 0.01f, 20s vs 30s*/
int len = sprintf(expected, "%.6f", u.f_value);
while (expected[len - 1] == '0' && expected[len - 2] != '.') { len--; }
expected[len] = '\0'; /* delete trailing 0's */
if (strcmp(expected, getBufferPutcharSpy()) != 0)
{
double six_digits = ((double)u.f_value - (uint32_t)u.f_value)*1000000.0;
/* Not a tie (remainder != 0.5) => Can't explain the different strings */
if (six_digits - (uint32_t)six_digits != 0.5)
{
/* Fail with diagnostic printing */
TEST_ASSERT_EQUAL_PRINT_FLOATING(expected, u.f_value);
}
}
}
}
char expected_lower[18];
char expected_higher[18];
/* Compared to perfect, floats are occasionally rounded wrong. It doesn't affect
* correctness, though. Two examples (of 13 total found during testing):
* Printed: 6.19256349e+20, Exact: 619256348499999981568.0f <= Eliminated by ROUND_TIES_TO_EVEN
* Printed: 2.19012272e+35, Exact: 219012271499999993621766990196637696.0f */
static void AllFloatPrinting_Larger(const float start, const float end)
{
unsigned int wrong = 0;
char expected[18];
union { float f_value; int32_t int_value; } u;
for (u.f_value = start; u.f_value <= end; u.int_value += 1)
{
startPutcharSpy();
startPutcharSpy();
UnityPrintFloat(u.f_value); /*Twice as fast as sprintf 2**32-1e12, 10s vs 21s*/
sprintf(expected, "%.8e", u.f_value);
UnityPrintFloat(f);
int len = 11 - 1; /* 11th char is 'e' in exponential format */
while (expected[len - 1] == '0' && expected[len - 2] != '.') { len --; }
if (expected[14] != '\0') memmove(&expected[12], &expected[13], 3); /* Two char exponent */
memmove(&expected[len], &expected[11 - 1], sizeof "e+09"); /* 5 char length */
sprintf(expected, "%.6g", f);
if (strcmp(expected, getBufferPutcharSpy()) != 0)
{
wrong++;
/* endPutcharSpy(); UnityPrint("Expected "); UnityPrint(expected);
UnityPrint(" Was "); UnityPrint(getBufferPutcharSpy()); UNITY_OUTPUT_CHAR('\n'); */
/* We print all NaN's as "nan", not "-nan" */
if(strcmp(expected, "-nan") == 0) strcpy(expected, "nan");
if (wrong > 10 || (wrong > 3 && end <= 1e25f))
TEST_ASSERT_EQUAL_PRINT_FLOATING(expected, u.f_value);
/* Empirical values from the current routine, don't be worse when making changes */
}
/* Allow for rounding differences in last digit */
double lower = (double)f * 0.9999995;
double higher = (double)f * 1.0000005;
if (isfinite(lower)) sprintf(expected_lower, "%.6g", lower); else strcpy(expected_lower, expected);
if (isfinite(higher)) sprintf(expected_higher, "%.6g", higher); else strcpy(expected_higher, expected);
if (strcmp(expected, getBufferPutcharSpy()) != 0 &&
strcmp(expected_lower, getBufferPutcharSpy()) != 0 &&
strcmp(expected_higher, getBufferPutcharSpy()) != 0)
{
/* Fail with diagnostic printing */
TEST_ASSERT_EQUAL_PRINT_FLOATING(expected, f);
}
}
#endif
/* Exhaustive testing of all float values we differentiate when printing. Doubles
* are not explored here -- too many. These tests confirm that the routine works
* for all floats > 5e-7, positives only. Off by default due to test time.
* Compares Unity's routine to your sprintf() C lib, tested to pass on 3 platforms.
* Part1 takes a long time, around 3 minutes compiled with -O2
* Runs through all floats from 0.000001 - 2**32, ~300 million values */
void testAllFloatPrintingPart1_LessThan32Bits(void)
void testFloatPrintingRandomSamples(void)
{
#if defined(UNITY_TEST_ALL_FLOATS_PRINT_OK) && defined(USING_OUTPUT_SPY)
AllFloatPrinting_LessThan32Bits();
#else
TEST_IGNORE(); /* Ignore one of three */
#endif
}
union { float f_value; uint32_t int_value; } u;
/* Test takes a long time, around 3.5 minutes compiled with -O2, try ~500 million values */
void testAllFloatPrintingPart2_Larger(void)
{
#if defined(UNITY_TEST_ALL_FLOATS_PRINT_OK) && defined(USING_OUTPUT_SPY)
AllFloatPrinting_Larger(4294967296.0f, 1e25f);
#endif
}
/* These values are not covered by the MINSTD generator */
u.int_value = 0x00000000; printFloatValue(u.f_value);
u.int_value = 0x80000000; printFloatValue(u.f_value);
u.int_value = 0x7fffffff; printFloatValue(u.f_value);
u.int_value = 0xffffffff; printFloatValue(u.f_value);
/* Test takes a long time, around 3.5 minutes compiled with -O2, try ~500 million values */
void testAllFloatPrintingPart3_LargerStill(void)
{
#if defined(UNITY_TEST_ALL_FLOATS_PRINT_OK) && defined(USING_OUTPUT_SPY)
AllFloatPrinting_Larger(1e25f, 3.40282347e+38f);
#endif
uint32_t a = 1;
for(int num_tested = 0; num_tested < 1000000; num_tested++)
{
/* MINSTD pseudo-random number generator */
a = (uint32_t)(((uint64_t)a * 48271u) % 2147483647u);
/* MINSTD does not set the highest bit; test both possibilities */
u.int_value = a; printFloatValue(u.f_value);
u.int_value = a | 0x80000000; printFloatValue(u.f_value);
}
}
#endif
// ===================== THESE TEST WILL RUN IF YOUR CONFIG INCLUDES DOUBLE SUPPORT ==================
......@@ -4893,35 +4838,20 @@ void testDoublePrinting(void)
#if defined(UNITY_EXCLUDE_FLOAT_PRINT) || defined(UNITY_EXCLUDE_DOUBLE) || !defined(USING_OUTPUT_SPY)
TEST_IGNORE();
#else
TEST_ASSERT_EQUAL_PRINT_FLOATING("0.100469", 0.10046949999999999);
TEST_ASSERT_EQUAL_PRINT_FLOATING("4294967295.999999", 4294967295.999999);
TEST_ASSERT_EQUAL_PRINT_FLOATING("4.2949673e+09", 4294967295.9999995);
TEST_ASSERT_EQUAL_PRINT_FLOATING("4.2949673e+09", 4294967296.0);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.0e+10", 9999999995.0);
TEST_ASSERT_EQUAL_PRINT_FLOATING("9.00719925e+15", 9007199254740990.0);
TEST_ASSERT_EQUAL_PRINT_FLOATING("7.0e+100", 7.0e+100);
TEST_ASSERT_EQUAL_PRINT_FLOATING("3.0e+200", 3.0e+200);
TEST_ASSERT_EQUAL_PRINT_FLOATING("9.23456789e+300", 9.23456789e+300);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-0.100469", -0.10046949999999999);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-4294967295.999999", -4294967295.999999);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-4.2949673e+09", -4294967295.9999995);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-7.0e+100", -7.0e+100);
#endif
}
TEST_ASSERT_EQUAL_PRINT_FLOATING("0.100469", 0.10046949999999999);
TEST_ASSERT_EQUAL_PRINT_FLOATING("4.29497e+09", 4294967295.999999);
TEST_ASSERT_EQUAL_PRINT_FLOATING("4.29497e+09", 4294967295.9999995);
TEST_ASSERT_EQUAL_PRINT_FLOATING("4.29497e+09", 4294967296.0);
TEST_ASSERT_EQUAL_PRINT_FLOATING("1e+10", 9999999995.0);
TEST_ASSERT_EQUAL_PRINT_FLOATING("9.0072e+15", 9007199254740990.0);
TEST_ASSERT_EQUAL_PRINT_FLOATING("7e+100", 7.0e+100);
TEST_ASSERT_EQUAL_PRINT_FLOATING("3e+200", 3.0e+200);
TEST_ASSERT_EQUAL_PRINT_FLOATING("9.23457e+300", 9.23456789e+300);
void testDoublePrintingRoundTiesToEven(void)
{
#if defined(UNITY_EXCLUDE_FLOAT_PRINT) || defined(UNITY_EXCLUDE_DOUBLE) || !defined(USING_OUTPUT_SPY)
TEST_IGNORE();
#else
#ifdef UNITY_ROUND_TIES_AWAY_FROM_ZERO
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.00000001e+10", 10000000050.0);
TEST_ASSERT_EQUAL_PRINT_FLOATING("9.00719925e+15", 9007199245000000.0);
#else /* Default to Round ties to even */
TEST_ASSERT_EQUAL_PRINT_FLOATING("1.0e+10", 10000000050.0);
TEST_ASSERT_EQUAL_PRINT_FLOATING("9.00719924e+15", 9007199245000000.0);
#endif
TEST_ASSERT_EQUAL_PRINT_FLOATING("-0.100469", -0.10046949999999999);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-4.29497e+09", -4294967295.999999);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-4.29497e+09", -4294967295.9999995);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-7e+100", -7.0e+100);
#endif
}
......@@ -4930,10 +4860,10 @@ void testDoublePrintingInfinityAndNaN(void)
#if defined(UNITY_EXCLUDE_FLOAT_PRINT) || defined(UNITY_EXCLUDE_DOUBLE) || !defined(USING_OUTPUT_SPY)
TEST_IGNORE();
#else
TEST_ASSERT_EQUAL_PRINT_FLOATING("Inf", 1.0 / d_zero);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-Inf", -1.0 / d_zero);
TEST_ASSERT_EQUAL_PRINT_FLOATING("inf", 1.0 / d_zero);
TEST_ASSERT_EQUAL_PRINT_FLOATING("-inf", -1.0 / d_zero);
TEST_ASSERT_EQUAL_PRINT_FLOATING("NaN", 0.0 / d_zero);
TEST_ASSERT_EQUAL_PRINT_FLOATING("nan", 0.0 / d_zero);
#endif
}
......
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