make this easier to read and understand without removing any content:
"""
Special cases
The following types are uninitialized-friendly:

std::byte
(since C++17)
unsigned char
char, if its underlying type is unsigned char
Given an indeterminate or erroneous(since C++26) value value, the uninitialized result value of value is:

An indeterminate value, if value is also an indeterminate value.
value, if value is an erroneous value.
(since C++26)
If an evaluation eval produces an indeterminate or erroneous(since C++26) value value of an uninitialized-friendly type, the behavior is well-defined in the following cases:

eval is the evaluation of one of the following expressions and operands:
The second or third operand of a conditional expression.
The right operand of a comma expression.
The operand of an integral conversion, explicit cast or static_cast to an uninitialized-friendly type.
A discarded-value expression.
In this case, the result of the operation is the uninitialized result value of value.
eval is an evaluation of the right operand of a simple assignment operator whose left operand is an lvalue of an uninitialized-friendly type.
In this case, the value of the object referred to by the left operand is replaced by the uninitialized result value of value.
eval is the evaluation of the initialization expression when initializing an object of an uninitialized-friendly type.
value cannot be of type std::byte if the object being initialized is not of type std::byte.
(since C++17)
In this case, that object is initialized to the uninitialized result value of value.
Converting an indeterminate value of an uninitialized-friendly type produces an indeterminate value.

Converting an erroneous value of an uninitialized-friendly type produces an erroneous value, the result of the conversion is the value of the converted operand.

(since C++26)
// Case 1: Uninitialized objects with dynamic storage duration
// All C++ versions: indeterminate value + undefined behavior
int f(bool b)
{
    unsigned char* c = new unsigned char;
    unsigned char d = *c; // OK, “d” has an indeterminate value
    int e = d;            // undefined behavior
    return b ? d : 0;     // undefined behavior if “b” is true
}
 
// Case 2: Uninitialized objects with automatic storage duration
// until C++26: indeterminate value + undefined behavior
// since C++26: erroneous value + erroneous behavior
int g(bool b)
{
    unsigned char c;     // “c” has an indeterminate/erroneous value
 
    unsigned char d = c; // no undefined/erroneous behavior,
                         // but “d” has an indeterminate/erroneous value
 
    assert(c == d);      // holds, but both integral promotions have
                         // undefined/erroneous behavior
 
    int e = d;           // undefined/erroneous behavior
    return b ? d : 0;    // undefined/erroneous behavior if “b” is true
}
 
// Same as case 2
void h()
{
    int d1, d2;  // “d1” and “d2” have indeterminate/erroneous values
    int e1 = d1; // undefined/erroneous behavior
    int e2 = d1; // undefined/erroneous behavior
 
    assert(e1 == e2); // holds
    assert(e1 == d1); // holds, undefined/erroneous behavior
    assert(e2 == d1); // holds, undefined/erroneous behavior
 
    // no undefined/erroneous behavior,
    // but “d2” has an indeterminate/erroneous value
    std::memcpy(&d2, &d1, sizeof(int));
 
    assert(e1 == d2); // holds, undefined/erroneous behavior
    assert(e2 == d2); // holds, undefined/erroneous behavior
}
"""