used_bits implementation for signed_multiprecision #67
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johnmcfarlane
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Nov 5, 2017
…ypes - addresses [issue#67](#67) - pass by `const&` to avoid costly copies of (potentially) large objects - do not rely on `sizeof(I)*CHAR_BIT` to measure bit width - use `cnl::digits` instead
johnmcfarlane
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Nov 6, 2017
…ypes - addresses [issue#67](#67) - pass by `const&` to avoid costly copies of (potentially) large objects - do not rely on `sizeof(I)*CHAR_BIT` to measure bit width - use `cnl::digits` instead
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Fixed in #69. Sorry for the delay. Other things have gotten in the way of a lot of much-needed work in CNL recently. |
troian
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May 6, 2021
…ypes - addresses [issue#67](johnmcfarlane#67) - pass by `const&` to avoid costly copies of (potentially) large objects - do not rely on `sizeof(I)*CHAR_BIT` to measure bit width - use `cnl::digits` instead
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This works:
using q4_20 = cnl::fixed_point<unsigned_multiprecision<24>,-20>;q4_20 a = 3.051757812500000e-05;` std::cout << "a : " << a << " used_bits : " << used_bits(a) << " leading bits : " << leading_bits(a) << std::endl;'
Producing correctly:
a : 3.0517578125e-05 used_bits : 6 leading bits : 18This fails:
using q4_20 = cnl::fixed_point<signed_multiprecision<24>,-20>;q4_20 a = 3.051757812500000e-05;` std::cout << "a : " << a << " used_bits : " << used_bits(a) << " leading bits : " << leading_bits(a) << std::endl;'
with:
a : 3.0517578125e-05 used_bits : unknown file: FailureC++ exception with description "Division by zero." thrown in the test body.Process finished with exit code 1The text was updated successfully, but these errors were encountered: