C/C ++ various data types conversion Summary

C/C ++ various data types conversion Summary

The following is a summary of C/C ++ data types commonly used in Windows/Linux systems:

 

#include 
 
  #include 
  
   #include 
   
    #include 
    
     #include 
     
      int main(){// 1--> int to char[]int tmp1 = 100;char ch1[15];sprintf(ch1, %d, tmp1);std::cout<
      
        int to stringint tmp2 = 111;char ch2[15];sprintf(ch2, %d, tmp2);std::string str2;str2 = std::string(ch2);std::cout<
       
         int to enumenum enum3 {A,B};int tmp3 = 222;enum3 val3 = static_cast
        
         (tmp3);std::cout<
         
           char[] to stringchar arr4[] = this is a sample;std::string str4;str4 = std::string(arr4);std::cout<
          
            char to intchar ch5 = '8';int val5 = ch5 - '0';// val5 is bounded by 0 to 9std::cout<
           
             char[] to intchar arr6[] = 12345;int tmp6;sscanf(arr6, %d, &tmp6);std::cout<
            
              char* to intchar* pch7 = 444;int tmp7;tmp7 = atoi(pch7);std::cout<
             
               char* to floatchar* pch8 = 55.5;float tmp8;tmp8 = (float)atof(pch8);std::cout<
              
                char* to doublechar* pch9 = 66.666;double tmp9;tmp9 = atof(pch9);std::cout<
               
                 float to char[]float tmp10 = 11.11;char ch10[20];sprintf(ch10, %f, tmp10);std::cout<
                
                  int to char*int tmp11 = 777;char* pch11;char ch11[20];sprintf(ch11, %d, tmp11);pch11 = ch11;std::cout<
                 
                   double to char[]double tmp12 = 8.888;char arr12[20];sprintf(arr12, %f, tmp12);std::cout< char* to stringchar* pch13 = hello, world;std::string str13;str13 = std::string(pch13);std::cout<
                  
                    string to char[]std::string str14 = dog, cat;char arr14[255];strncpy(arr14, str14.c_str(), sizeof(arr14));arr14[sizeof(arr14) - 1] = 0;std::cout< string to const char*std::string str15 = ha ha;const char* pch15;pch15 = str15.c_str();std::cout<
                   
                     float to intfloat ftmp16 = 99.99;int tmp16;tmp16 = static_cast
                    
                     (ftmp16);// static_cast
                     
                      (ftmp16 + 0.5)std::cout<