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c++ Programming Glossary: lval

How does the compiler know to move local variables?

http://stackoverflow.com/questions/11492948/how-does-the-compiler-know-to-move-local-variables

something like std unique_ptr int f std unique_ptr int lval nullptr return lval This code compiles fine even for a move.. unique_ptr int f std unique_ptr int lval nullptr return lval This code compiles fine even for a move only type as the compiler.. function parameter treat as rvalue. If that fails treat as lvalue. Otherwise treat as lvalue. §12.8 class.copy p32 When the..

Divide and Conquer array algorithm ++

http://stackoverflow.com/questions/13284503/divide-and-conquer-array-algorithm

up with and the performance is O log n bool inRange int lval int uval int ar size_t n if 0 n return false size_t mid n 2.. n if 0 n return false size_t mid n 2 if ar mid std min lval uval if ar mid std max lval uval return true return inRange.. mid n 2 if ar mid std min lval uval if ar mid std max lval uval return true return inRange lval uval ar mid return inRange..

Turning temporary stringstream to c_str() in single statement

http://stackoverflow.com/questions/2433071/turning-temporary-stringstream-to-c-str-in-single-statement

better to write this generally template typename T struct lval T t T getlval return t f static_cast std ostringstream lval.. this generally template typename T struct lval T t T getlval return t f static_cast std ostringstream lval std ostringstream.. T t T getlval return t f static_cast std ostringstream lval std ostringstream .getlval Value 5 .str .c_str The reason that..

Is pass-by-value a reasonable default in C++11?

http://stackoverflow.com/questions/7592630/is-pass-by-value-a-reasonable-default-in-c11

has the advantage that the caller can use foo like so T lval foo lval copy from lvalue foo T potential move from prvalue.. advantage that the caller can use foo like so T lval foo lval copy from lvalue foo T potential move from prvalue foo std move.. the caller can use foo like so T lval foo lval copy from lvalue foo T potential move from prvalue foo std move lval potential..