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// file : build/utility -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Tools CC
// license : MIT; see accompanying LICENSE file
#ifndef BUILD_UTILITY
#define BUILD_UTILITY
#include <string>
#include <unordered_set>
#include <cstring> // strcmp
namespace build
{
struct compare_c_string
{
bool operator() (const char* x, const char* y) const
{
return std::strcmp (x, y) < 0;
}
};
struct compare_pointer_target
{
template <typename P>
bool operator() (const P& x, const P& y) const {return *x < *y;}
};
// Pools (@@ perhaps move into a separate header).
//
struct string_pool: std::unordered_set<std::string>
{
const std::string&
find (const char* s) {return *emplace (s).first;}
};
extern string_pool extension_pool;
}
#endif // BUILD_UTILITY
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