Effects: Returns true if this scoped_lock has acquired the referenced mutex.

Methods for changing position

<b>Requires</b>: prev is an iterator to an element or x.end()/x.before_begin() in x. <b>Effects</b>: Transfers all the elements of list x to this lis

is the date valid?

Sets a new value, overriding the one supplied in the constructor.

Atomically read an boost::uint32_t from memory

Construct a new timer implementation.

return sign information

Tests a character against a character class bitmask. \param ch The character to test. \param mask The character class bitmask against which to test.

Get the underlying implementation in the native type. * This function may be used to obtain the underlying implementation of the * context. This i