Geant4 Cross Reference

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Geant4/externals/g4tools/include/tools/tosu

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  1 // Copyright (C) 2010, Guy Barrand. All rights reserved.
  2 // See the file tools.license for terms.
  3 
  4 #ifndef tools_tosu
  5 #define tools_tosu
  6 
  7 // have a "sprintf(%u)" without #include.
  8 // It is used in platform.
  9 
 10 namespace tools {
 11 
 12 inline void toss(const char* a_from,char a_s[],unsigned int& a_l) {
 13   char* _s = (char*)a_from;
 14   a_l = 0;
 15   char* pos = a_s;
 16   while(*_s) {
 17     *pos = *_s;pos++;
 18     a_l++;
 19     _s++;
 20   }
 21   *pos = 0;
 22 }
 23 
 24 template <class T>  //T must be an unsigned number type.
 25 inline void tosu(T a_i,char a_s[],unsigned int& a_l) {
 26   //assume a_s is sufficently allocated (32 is ok).
 27   a_l = 0;
 28  {char* pos = a_s;
 29   T i = a_i;
 30   while(true) {
 31     if(i<=9) {*pos = '0'+char(i);pos++;a_l++;*pos=0;pos++;break;}
 32     T r = i % 10;
 33     *pos = '0'+char(r);pos++;
 34     a_l++;
 35     i = i/10;
 36   }}
 37   //strrev(s);
 38  {unsigned int hl = a_l/2;
 39   char* beg = a_s;
 40   char* end = a_s+a_l-1;
 41   for(unsigned int i=0;i<hl;i++) {
 42     char c = *end;
 43     *end = *beg;
 44     *beg = c;
 45     beg++;end--;
 46   }}
 47 }
 48 
 49 }
 50 
 51 #endif