Function starts

Function starts_with

boost::algorithm::starts_with — 'Starts with' predicate

Synopsis

template<typename Collection1T, typename Collection2T, typename PredicateT> 
  bool starts_with(const Collection1T & Input, const Collection2T & Test, 
                   PredicateT Comp);
template<typename Collection1T, typename Collection2T> 
  bool starts_with(const Collection1T & Input, const Collection2T & Test);

Description

This predicate holds when the test collection is a prefix of the Input. In other words, if the input starts with the test. When the optional predicate is specified, it is used for character-wise comparison.

Parameters

Comp: An element comparison predicate
Input: An input sequence
Test: A test sequence

Returns: The result of the test
Notes: This function provides the strong exception-safety guarantee