Warning, /include/Geant4/tools/cmemT is written in an unsupported language. File is not indexed.
0001 // Copyright (C) 2010, Guy Barrand. All rights reserved.
0002 // See the file tools.license for terms.
0003
0004 #ifndef tools_cmemT
0005 #define tools_cmemT
0006
0007 #include <cstdlib>
0008 #include <cstring> //memcpy
0009
0010 namespace tools {
0011
0012 template <class T>
0013 inline void cmem_free(T*& a_p){
0014 if(!a_p) return;
0015 ::free(a_p);
0016 a_p = NULL;
0017 }
0018
0019 template <class T>
0020 inline T* cmem_alloc(size_t a_num){
0021 if(a_num<=0) return 0;
0022 T* p = (T*)::malloc(a_num*sizeof(T));
0023 if(!p) return 0;
0024 return p;
0025 }
0026
0027 template <class T>
0028 inline bool cmem_realloc(T*& a_pointer,size_t a_new_size,size_t a_old_size,bool a_init = false) {
0029 if(!a_new_size) {
0030 delete [] a_pointer;
0031 a_pointer = 0;
0032 return true;
0033 }
0034 if(!a_pointer) {
0035 a_pointer = new T[a_new_size];
0036 if(!a_pointer) return false;
0037 return true;
0038 }
0039 if(a_old_size==a_new_size) return true;
0040 T* pointer = new T[a_new_size];
0041 if(!pointer) {
0042 delete [] a_pointer;
0043 a_pointer = 0;
0044 return false;
0045 }
0046 if(a_new_size>a_old_size) {
0047 ::memcpy(pointer,a_pointer,a_old_size*sizeof(T));
0048 if(a_init){
0049 size_t num = a_new_size-a_old_size;
0050 T* pos = pointer+a_old_size;
0051 for(size_t i=0;i<num;i++,pos++) *pos = T();
0052 }
0053 } else {
0054 ::memcpy(pointer,a_pointer,a_new_size*sizeof(T));
0055 }
0056 delete [] a_pointer;
0057 a_pointer = pointer;
0058 return true;
0059 }
0060
0061 }
0062
0063 #endif
