Function utoa64

src/fl/stl/charconv.cpp.hpp:162–184

}

int utoa64(u64 value, char *sp, int radix) {
    char tmp[32]; // larger buffer for 64-bit values
    char *tp = tmp;
    int i;
    u64 v = value;

    while (v || tp == tmp) {
        i = v % radix;
        v = radix ? v / radix : 0;
        if (i < 10)
            *tp++ = i + '0';
        else
            *tp++ = i + 'a' - 10;
    }

    int len = tp - tmp;

    while (tp > tmp)
        *sp++ = *--tp;

    *sp = '\0';  // Null-terminate the string
    return len;
}

void ftoa(float value, char *buffer, int precision) {
    // Forward to printf_detail for now - implementation in str.cpp will be updated