https://github.com/Singular/Sources
Tip revision: b4e678f4ebbc2cbfb443db3205b1e086ba00bb4c authored by Hans Schoenemann on 14 January 2016, 14:36:19 UTC
fix COPYING
fix COPYING
Tip revision: b4e678f
omallocClass.cc
/****************************************
* Computer Algebra System SINGULAR *
****************************************/
/*
* ABSTRACT: standard version of C++-memory management alloc func
*/
#include <omalloc/omalloc.h>
#ifdef __cplusplus
#include <new>
#include <stdlib.h>
#include <omalloc/omallocClass.h>
void* omallocClass::operator new[] ( size_t size )
#ifndef __GNUC__
throw (std::bad_alloc)
#endif
{
void* addr;
if (size==(size_t)0) size = (size_t)1;
omTypeAlloc(void*, addr, size);
return addr;
}
void omallocClass::operator delete[] ( void* block )
#ifndef __GNUC__
throw ()
#endif
{
omfree( block );
}
// The C++ standard has ratified a change to the new operator.
//
// T *p = new T;
//
// Previously, if the call to new above failed, a null pointer would've been returned.
// Under the ISO C++ Standard, an exception of type std::bad_alloc is thrown.
// It is possible to suppress this behaviour in favour of the old style
// by using the nothrow version.
//
// T *p = new (std::nothrow) T;
//
// So we have to overload this new also, just to be sure.
//
// A further interesting question is, if you don't have enough resources
// to allocate a request for memory,
// do you expect to have enough to be able to deal with it?
// Most operating systems will have slowed to be unusable
// long before the exception gets thrown.
void * omallocClass::operator new(size_t size, const std::nothrow_t &) throw()
{
void* addr;
omTypeAlloc(void*, addr, size);
return addr;
}
void * omallocClass::operator new[](size_t size, const std::nothrow_t &) throw()
{
void* addr;
if (size==(size_t)0) size = (size_t)1;
omTypeAlloc(void*, addr, size);
return addr;
}
#endif