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avr39ripe

cppStringToNumberConversion

May 25th, 2021
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C++ 0.53 KB | None | 0 0
  1. //#define _CRT_SECURE_NO_WARNINGS
  2. #include <iostream>
  3.  
  4. int main()
  5. {
  6.     //char str[10];
  7.     //char* ptrS{};
  8.     //char* endPtr{};
  9.  
  10.     //_itoa_s(2607, str, 10);
  11.     //std::cout <<  str << '\n';
  12.  
  13.     //char buf[200];
  14.     //
  15.     //_gcvt_s(buf,200,123.456, 8);
  16.     //std::cout << buf << '\n';
  17.     char str[100]{ "24.0788" };
  18.     //char* endPtr{};
  19.  
  20.     double val{ strtod(str, nullptr) };
  21.  
  22.     std::cout << val << '\n';
  23.  
  24.     std::cout << atof(str) << '\n';
  25.  
  26.     char intStr[10]{ "4226" };
  27.  
  28.     int number{ atoi(intStr) };
  29.  
  30.     std::cout << number << '\n';
  31.  
  32. }
  33.  
  34.  
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