91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* main.cpp :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2022/08/06 16:53:32 by apommier #+# #+# */
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/* Updated: 2022/08/06 19:41:49 by apommier ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include <sstream>
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#include <iostream>
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#include <limits.h>
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#include <float.h>
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#include <math.h>
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#include <iomanip>
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void printNan(std::string str)
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{
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std::cout << "char: impossible" << std::endl;
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std::cout << "int: impossible" << std::endl;
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if (str == "-inf" || str == "+inf" || str == "nan")
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str += "f";
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std::cout << "float: " << str << std::endl;
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if (str == "-inff" || str == "+inff" || str == "nanf")
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str.erase(str.end()-1);
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std::cout << "double: " << str << std::endl;
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}
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void printConversion(double nbr)
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{
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//char cast
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if (nbr <= CHAR_MAX && nbr >= CHAR_MIN && nbr <= 31)
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std::cout << "char: Non displayable\n";
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else if (nbr < CHAR_MAX && nbr > CHAR_MIN)
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std::cout << "char: " << static_cast<char>(nbr) << std::endl;
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else
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std::cout << "char: impossible\n";
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//int cast
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if (nbr <= INT_MAX && nbr >= INT_MIN)
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std::cout << "int: " << static_cast<int>(nbr) << std::endl;
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else
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std::cout << "int: impossible\n";
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//float cast
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if (nbr <= FLT_MAX && nbr >= -FLT_MAX)
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{
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std::cout << "float: " << static_cast<float>(nbr);
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if (nbr - static_cast<int>(nbr) == 0.0)
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std::cout << ".0";
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std::cout << "f" << std::endl;
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}
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else
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std::cout << "float: impossible\n";
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//double cast
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std::cout << "double: " << static_cast<double>(nbr);
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if (nbr - static_cast<int>(nbr) == 0.0)
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std::cout << ".0";
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std::cout << std::endl;
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}
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int main(int ac, char **av)
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{
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double nbr;
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std::stringstream ss;
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std::string nbrStr;
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if (ac != 2)
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{
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std::cout << "Wrong number of arguments\n";
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return (0);
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}
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nbrStr = av[1];
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if (nbrStr == "-inf" || nbrStr == "+inf" || nbrStr == "nan" || nbrStr == "-inff" || nbrStr == "+inff" || nbrStr == "nanf")
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{
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printNan(nbrStr);
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return (0);
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}
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ss << nbrStr;
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ss >> nbr;
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if(ss.fail())
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{
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std::cout << "Bad entry ! Try to insert a good number\n";
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return (0);
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}
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printConversion(nbr);
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} |