Function append_u64_decimal

src/fl/stl/ieee754_string.cpp.hpp:431–437

Append the decimal digits of `value` to `out`. Reuses the integer-only `fl::utoa64` helper from `fl/stl/charconv.h` -- no FP arithmetic.

// Append the decimal digits of `value` to `out`. Reuses the integer-only
// `fl::utoa64` helper from `fl/stl/charconv.h` -- no FP arithmetic.
static void append_u64_decimal(fl::string& out, fl::u64 value) FL_NOEXCEPT {
    char buf[24];
    const int n = fl::utoa64(value, buf, 10);
    for (int i = 0; i < n; ++i) {
        out += fl::string(1, buf[i]);
    }
}

fl::string ieee754_format_decimal(u32 bits, int precision) FL_NOEXCEPT {
    if (precision < 0) precision = 0;