learnmoderncpp-tutorial/modules/08-format2.cpp at main · Adir-html/learnmoderncpp-tutorial

Repository navigation

// 08-format2.cpp : Various format string-using functions

import std;

using namespace std;

int main() {

string world{ "World" };

print(cout, "Hello, {}!\n", world);

println("{1} or {0}", false, true);

constexpr const char *fmt = "Approximation of π = {:.12g}";

string s = format(fmt, asin(1.0) * 2);

cout << s << '\n';

constexpr const wchar_t *wfmt = L"Approximation of pi = {:.12g}";

wstring ws = format(wfmt, asin(1.0) * 2);

wcout << ws << L'\n';

format_to(ostream_iterator<char>(cout), "Hello, {}!\n", world);

wstring ww{ L"World" };

array<wchar_t,9> wa;

auto iter = format_to_n(wa.begin(), 8, L"Hello, {}!\n", ww);

*(iter.out) = L'\0';

wcout << wa.data() << L'\n';

}