RetroSearch Browse

Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://timsong-cpp.github.io/cppwp/n4659/fpos below:

[fpos]

30 Input/output library [input.output] 30.5 Iostreams base classes [iostreams.base] 30.5.4 Class template fpos [fpos]

namespace std {
  template <class stateT> class fpos {
  public:
        stateT state() const;
    void state(stateT);
  private;
    stateT st;   };
}

30.5.4.1 fpos members [fpos.members]

void state(stateT s);

Effects: Assigns s to st.

stateT state() const;

Returns: Current value of st.

30.5.4.2 fpos requirements [fpos.operations]

Operations specified in Table 112 are permitted. In that table,

P refers to an instance of fpos,
p and q refer to values of type P,
O refers to type streamoff,
o refers to a value of type streamoff,
sz refers to a value of type streamsize and
i refers to a value of type int.

Table

112

— Position type requirements

Expression Return type Operational Assertion/note semantics pre-/post-condition P(i) p == P(i)
note: a destructor is assumed. P p(i);
P p = i; Postconditions: p == P(i). P(o) fpos converts from offset O(p) streamoff converts to offset P(O(p)) == p p == q convertible to bool == is an equivalence relation p != q convertible to bool !(p == q) q = p + o
p += o fpos + offset q - o == p q = p - o
p -= o fpos - offset q + o == p o = p - q streamoff distance q + o == p streamsize(o)
O(sz) streamsize
streamoff converts
converts streamsize(O(sz)) == sz
streamsize(O(sz)) == sz

[ Note: Every implementation is required to supply overloaded operators on fpos objects to satisfy the requirements of [fpos.operations]. It is unspecified whether these operators are members of fpos, global operators, or provided in some other way. — end note ]

Stream operations that return a value of type traits::pos_type return P(O(-1)) as an invalid value to signal an error. If this value is used as an argument to any istream, ostream, or streambuf member that accepts a value of type traits::pos_type then the behavior of that function is undefined.

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4