1 // This file is part of the ustl library, an STL implementation. 2 // 3 // Copyright (C) 2005 by Mike Sharov <msharov (at) users.sourceforge.net> 4 // This file is free software, distributed under the MIT License. 5 // 6 /// \file unew.h 7 /// 8 /// \brief Same as \<new\>, but throws ustl:: exceptions. 9 // 10 11 #ifndef UNEW_H_11D237512B324C9C05A55DAF1BF086F1 12 #define UNEW_H_11D237512B324C9C05A55DAF1BF086F1 13 14 #include "uexception.h" 15 16 /// Just like malloc, but throws on failure. 17 void* throwing_malloc (size_t n) throw (ustl::bad_alloc); 18 /// Just like free, but doesn't crash when given a NULL. 19 void free_nullok (void* p) throw(); 20 21 #ifdef WITHOUT_LIBSTDCPP 22 23 // 24 // These are replaceable signatures: 25 // - normal single new and delete (no arguments, throw @c bad_alloc on error) 26 // - normal array new and delete (same) 27 // - @c nothrow single new and delete (take a @c nothrow argument, return 28 // @c NULL on error) 29 // - @c nothrow array new and delete (same) 30 // 31 // Placement new and delete signatures (take a memory address argument, 32 // does nothing) may not be replaced by a user's program. 33 // 34 inline void* operator new (size_t n) throw (ustl::bad_alloc) { return (throwing_malloc (n)); } 35 inline void* operator new[] (size_t n) throw (ustl::bad_alloc) { return (throwing_malloc (n)); } 36 inline void operator delete (void* p) throw() { free_nullok (p); } 37 inline void operator delete[] (void* p) throw() { free_nullok (p); } 38 39 // Default placement versions of operator new. 40 inline void* operator new (size_t, void* p) throw() { return (p); } 41 inline void* operator new[] (size_t, void* p) throw() { return (p); } 42 43 // Default placement versions of operator delete. 44 inline void operator delete (void*, void*) throw() { } 45 inline void operator delete[](void*, void*) throw() { } 46 47 #else 48 #include <new> 49 #endif // WITHOUT_LIBSTDCPP 50 51 #endif 52 53
