Modern-CPP - Chapter08 - String & Stream
Modern-CPP - Chapter08 - String & Stream
课程来源:b站我是龙套小果丁
Tips
- 第七题如果使用
std::range_formatter
编译失败,可以使用统一的方法:
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template <typename T> struct std::formatter<List<T>> {
// We need to parse format specifiers
constexpr auto parse(std::format_parse_context &ctx) { return ctx.begin(); }
// Format the list
auto format(const List<T> &list, std::format_context &ctx) const {
auto out = ctx.out();
out = std::format_to(out, "[");
bool first = true;
for (const auto &item : list) {
if (!first) {
out = std::format_to(out, "=>");
}
out = std::format_to(out, "{}", item);
first = false;
}
return std::format_to(out, "]");
}
};
- 在MacOS上
zh-CN
可能需要被替换为zh-CN.UTF-8
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