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Fix big negative numbers printing incorrect decimals in num_real

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This commit is contained in:
Aaron Franke
2022-10-15 17:36:22 -05:00
parent dc4b616596
commit c60ac64e8f
2 changed files with 9 additions and 4 deletions
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4
tests/core/string/test_string.h
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@@ -411,9 +411,13 @@ TEST_CASE("[String] Number to string") {
CHECK(String::num_real(3.141593) == "3.141593");
CHECK(String::num_real(3.141) == "3.141"); // No trailing zeros.
#ifdef REAL_T_IS_DOUBLE
CHECK_MESSAGE(String::num_real(123.456789) == "123.456789", "Prints the appropriate amount of digits for real_t = double.");
CHECK_MESSAGE(String::num_real(-123.456789) == "-123.456789", "Prints the appropriate amount of digits for real_t = double.");
CHECK_MESSAGE(String::num_real(Math_PI) == "3.14159265358979", "Prints the appropriate amount of digits for real_t = double.");
CHECK_MESSAGE(String::num_real(3.1415f) == "3.1414999961853", "Prints more digits of 32-bit float when real_t = double (ones that would be reliable for double) and no trailing zero.");
#else
CHECK_MESSAGE(String::num_real(123.456789) == "123.4568", "Prints the appropriate amount of digits for real_t = float.");
CHECK_MESSAGE(String::num_real(-123.456789) == "-123.4568", "Prints the appropriate amount of digits for real_t = float.");
CHECK_MESSAGE(String::num_real(Math_PI) == "3.141593", "Prints the appropriate amount of digits for real_t = float.");
CHECK_MESSAGE(String::num_real(3.1415f) == "3.1415", "Prints only reliable digits of 32-bit float when real_t = float.");
#endif // REAL_T_IS_DOUBLE