本文整理汇总了C++中string_ref::is_empty方法的典型用法代码示例。如果您正苦于以下问题：C++ string_ref::is_empty方法的具体用法？C++ string_ref::is_empty怎么用？C++ string_ref::is_empty使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类string_ref的用法示例。
在下文中一共展示了string_ref::is_empty方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: while
void
consensus::create(
const string_ref cached_consensus_path,
bool force_download
)
{
string consensus_content;
bool have_valid_consensus = false;
//
// if no path to the cached consensus file
// was provided, we have to download it.
//
if (cached_consensus_path.is_empty() || !io::file::exists(cached_consensus_path))
{
force_download = true;
}
while (!have_valid_consensus)
{
consensus_content = force_download
? download_from_random_authority("/tor/status-vote/current/consensus")
: io::file::read_to_string(cached_consensus_path);
parse_consensus(consensus_content);
have_valid_consensus = _valid_until >= time::now();
//
// if the consensus is invalid, we have to download it anyway.
//
if (!have_valid_consensus)
{
force_download = true;
}
}
//
// save the consensus content, if the path was provided.
//
if (force_download && !cached_consensus_path.is_empty())
{
io::file::write_from_string(cached_consensus_path, consensus_content);
}
}