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Merge pull request #6949 from tf2spi/6864-canonicalize-f64-to-string

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Use specific format to make f64 strings canonical
This commit is contained in:
gingerBill
2026-07-04 16:11:57 +01:00
committed by GitHub
parent 6eec8dd070 c2dfa289f9
commit ea72e772fe
1 changed files with 4 additions and 3 deletions
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7
src/exact_value.cpp
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@@ -1132,12 +1132,13 @@ gb_internal gbString write_exact_value_to_string(gbString str, ExactValue const
gb_free(heap_allocator(), s.text);
return str;
}
// NOTE(tf2spi): %.17g is specific enough to canonically serialize f64
case ExactValue_Float:
return gb_string_append_fmt(str, "%f", v.value_float);
return gb_string_append_fmt(str, "%.17g", v.value_float);
case ExactValue_Complex:
return gb_string_append_fmt(str, "%f+%fi", v.value_complex->real, v.value_complex->imag);
return gb_string_append_fmt(str, "%.17g+%.17gi", v.value_complex->real, v.value_complex->imag);
case ExactValue_Quaternion:
return gb_string_append_fmt(str, "%f+%fi+%fj+%fk", v.value_quaternion->real, v.value_quaternion->imag, v.value_quaternion->jmag, v.value_quaternion->kmag);
return gb_string_append_fmt(str, "%.17g+%.17gi+%.17gj+%.17gk", v.value_quaternion->real, v.value_quaternion->imag, v.value_quaternion->jmag, v.value_quaternion->kmag);
case ExactValue_Pointer:
return str;