Gabriele Cosmo
64 lines
1.3 KiB
Plaintext
64 lines
1.3 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
|
|
// See the file tools.license for terms.
|
|
|
|
#ifndef tools_cmemT
|
|
#define tools_cmemT
|
|
|
|
#include <cstdlib>
|
|
#include <cstring> //memcpy
|
|
|
|
namespace tools {
|
|
|
|
template <class T>
|
|
inline void cmem_free(T*& a_p){
|
|
if(!a_p) return;
|
|
::free(a_p);
|
|
a_p = NULL;
|
|
}
|
|
|
|
template <class T>
|
|
inline T* cmem_alloc(size_t a_num){
|
|
if(a_num<=0) return 0;
|
|
T* p = (T*)::malloc(a_num*sizeof(T));
|
|
if(!p) return 0;
|
|
return p;
|
|
}
|
|
|
|
template <class T>
|
|
inline bool cmem_realloc(T*& a_pointer,size_t a_new_size,size_t a_old_size,bool a_init = false) {
|
|
if(!a_new_size) {
|
|
delete [] a_pointer;
|
|
a_pointer = 0;
|
|
return true;
|
|
}
|
|
if(!a_pointer) {
|
|
a_pointer = new T[a_new_size];
|
|
if(!a_pointer) return false;
|
|
return true;
|
|
}
|
|
if(a_old_size==a_new_size) return true;
|
|
T* pointer = new T[a_new_size];
|
|
if(!pointer) {
|
|
delete [] a_pointer;
|
|
a_pointer = 0;
|
|
return false;
|
|
}
|
|
if(a_new_size>a_old_size) {
|
|
::memcpy(pointer,a_pointer,a_old_size*sizeof(T));
|
|
if(a_init){
|
|
size_t num = a_new_size-a_old_size;
|
|
T* pos = pointer+a_old_size;
|
|
for(size_t i=0;i<num;i++,pos++) *pos = T();
|
|
}
|
|
} else {
|
|
::memcpy(pointer,a_pointer,a_new_size*sizeof(T));
|
|
}
|
|
delete [] a_pointer;
|
|
a_pointer = pointer;
|
|
return true;
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|