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The debug mode checks for a valid range are redundant when we have an initializer_list argument, because we know it's a valid range already. By making std::min(initialier_list<T>) call the internal __min_element function directly we avoid a function call and skip those checks. The same can be done for the overload taking a comparison function, and also for the std::max and std::minmax overloads for initializer_list arguments. Signed-off-by: Jonathan Wakely <jwakely@redhat.com> libstdc++-v3/ChangeLog: * include/bits/stl_algo.h (min(initializer_list<T>)) (min(initializer_list<T>, Compare)): Call __min_element directly to avoid redundant debug checks for valid ranges. (max(initializer_list<T>), max(initializer_list<T>, Compare)): Likewise, for __max_element. (minmax(initializer_list<T>), minmax(initializer_list<T>, Compare)): Likewise, for __minmax_element.
file: libstdc++-v3/README New users may wish to point their web browsers to the file index.html in the 'doc/html' subdirectory. It contains brief building instructions and notes on how to configure the library in interesting ways.