UT_StackAlloc.h File Reference

#include "UT_Assert.h"
#include <alloca.h>

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Macros
#define	UT_STACK_LIMIT   131072
#define	UT_STACK_ALLOCA   100
#define	UT_STACK_MALLOC   200
#define	UTstackAlloc(size)
#define	UTstackFree(ptr)

Macro Definition Documentation

#define UT_STACK_ALLOCA   100

Definition at line 31 of file UT_StackAlloc.h.

#define UT_STACK_LIMIT   131072

Definition at line 28 of file UT_StackAlloc.h.

#define UT_STACK_MALLOC   200

Definition at line 32 of file UT_StackAlloc.h.

#define UTstackAlloc

(

size

)

Value:

(void *)(&((size < UT_STACK_LIMIT) ?    \
    (*((int32 *)::alloca(size+2*sizeof(int32))) = UT_STACK_ALLOCA) : \
    (*((int32 *)::malloc(size+2*sizeof(int32))) = UT_STACK_MALLOC)) + 2)

Definition at line 34 of file UT_StackAlloc.h.

#define UTstackFree

(

ptr

)

Value:

{                                                               \
            UT_ASSERT_P(!ptr ||                                         \
                        *((int32 *)ptr - 2) == UT_STACK_MALLOC ||       \
                        *((int32 *)ptr - 2) == UT_STACK_ALLOCA);        \
            if (ptr && (*((int32 *)ptr - 2) == UT_STACK_MALLOC))        \
                ::free(((int32 *)ptr - 2));                             \
        }

Definition at line 38 of file UT_StackAlloc.h.