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Use StringRef in pluralise implementation

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This means that it can no longer be safely made ahead of time,
but nothing in our existing code used it like that. Normally it
is constructed and used in the same expression, which is now
more efficient.
This commit is contained in:
Martin Hořeňovský 2021-09-08 00:24:36 +02:00
parent c0f866c7cf
commit b3a84c7983
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2 changed files with 15 additions and 7 deletions
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5
src/catch2/internal/catch_string_manip.cpp
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@ -94,11 +94,6 @@ namespace Catch {
return subStrings;
}
pluralise::pluralise( std::size_t count, std::string const& label )
: m_count( count ),
m_label( label )
{}
std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser ) {
os << pluraliser.m_count << ' ' << pluraliser.m_label;
if( pluraliser.m_count != 1 )

17
src/catch2/internal/catch_string_manip.hpp
View File

@ -32,13 +32,26 @@ namespace Catch {
std::vector<StringRef> splitStringRef( StringRef str, char delimiter );
bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis );
/**
* Helper for streaming a "count [maybe-plural-of-label]" human-friendly string
*
* Usage example:
* ```cpp
* std::cout << "Found " << pluralise(count, "error") << '\n';
* ```
*
* **Important:** The provided string must outlive the instance
*/
struct pluralise {
pluralise( std::size_t count, std::string const& label );
pluralise(std::size_t count, StringRef label):
m_count(count),
m_label(label)
{}
friend std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser );
std::size_t m_count;
std::string m_label;
StringRef m_label;
};
}