From 3503abc649daf6ca60726c0633598f6ff49919af Mon Sep 17 00:00:00 2001
From: Leo Firmin <lfirmin@f1br3s1.clusters.42paris.fr>
Date: Wed, 14 Jan 2026 04:08:51 +0100
Subject: [PATCH] first commits

---
 ex00/Main.cpp            |  0
 ex00/ScalarConverter.cpp | 90 ++++++++++++++++++++++++++++++++++++++++
 ex00/ScalarConverter.hpp | 28 +++++++++++++
 3 files changed, 118 insertions(+)
 create mode 100644 ex00/Main.cpp
 create mode 100644 ex00/ScalarConverter.cpp
 create mode 100644 ex00/ScalarConverter.hpp

diff --git a/ex00/Main.cpp b/ex00/Main.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/ex00/ScalarConverter.cpp b/ex00/ScalarConverter.cpp
new file mode 100644
index 0000000..9a6f5e0
--- /dev/null
+++ b/ex00/ScalarConverter.cpp
@@ -0,0 +1,90 @@
+#include "ScalarConverter.hpp"
+
+bool ischar(const std::string& input)
+{
+    return (input.length() == 1);
+}
+
+bool isInt(const std::string& input)
+{
+    if (input.empty())
+        return false;
+    size_t i = 0;
+    if (input[0] == '+' || input[0] == '-')
+        i = 1;
+    if (i >= input.length())
+        return false;
+    while (i < input.length())
+    {
+        if (!std::isdigit(input[i]))
+            return false;
+        i++;
+    }
+    return true;
+}
+
+bool isFloat(const std::string& input)
+{
+    if (input.empty())
+        return false;
+    size_t i = 0;
+    bool hasPoint = false;
+    bool hasDigit = false;
+    if (input[0] == '+' || input[0] == '-')
+        i = 1;
+    while (i < input.length())
+    {
+        if (std::isdigit(input[i]))
+            hasDigit = true;
+        else if (input[i] == '.' && !hasPoint)
+            hasPoint = true;
+        else if (input[i] == 'f' && i == input.length() - 1 && hasDigit)
+            return true;
+        else
+            return false;
+		i++;
+    }
+    return (hasDigit && hasPoint);
+}
+
+bool isDouble(const std::string& input)
+{
+    if (input.empty())
+        return false;
+    size_t i = 0;
+    bool hasPoint = false;
+    bool hasDigit = false;
+    if (input[0] == '+' || input[0] == '-')
+        i = 1;
+    while (i < input.length())
+    {
+        if (std::isdigit(input[i]))
+            hasDigit = true;
+        else if (input[i] == '.' && !hasPoint)
+            hasPoint = true;
+        else
+            return false;
+        i++;
+    }
+    return (hasDigit && hasPoint);
+}
+
+void	ScalarConverter::toChar(const std::string &input)
+{
+	char	c = input[0];
+	int		i = static_cast<int>(c);
+	float	f = static_cast<float>(c);
+	double	d = static_cast<double>(c);
+
+	if (input.size() == 3)
+		if (input[0] == '\'' && input[2] == '\'');
+			c = input[1];
+
+	if (isprint(c))
+		std::cout << "char:   \t'" << c << "'" << std::endl;
+	else
+		std::cout << "char:   \t" << "non displayable" << std::endl;
+	std::cout << "int:    \t" << i << std::endl;
+	std::cout << "float:  \t" << std::fixed << std::setprecision(1) << f << "f" << std::endl;
+	std::cout << "double: \t" << d << std::endl;
+}
\ No newline at end of file
diff --git a/ex00/ScalarConverter.hpp b/ex00/ScalarConverter.hpp
new file mode 100644
index 0000000..08e9a9c
--- /dev/null
+++ b/ex00/ScalarConverter.hpp
@@ -0,0 +1,28 @@
+#ifndef SCALARCONVERTER_HPP
+#define SCALARCONVERTER_HPP
+
+#include <iostream>
+#include <string>
+#include <limits>
+#include <iomanip>
+
+class ScalarConverter
+{
+    private:
+        ScalarConverter(void);
+        ScalarConverter(ScalarConverter const &src);
+        ~ScalarConverter(void);
+        ScalarConverter    &operator=(ScalarConverter const &rhs);
+
+    public:
+        void    convert(const std::string& input);
+
+		static bool isChar(const std::string& input);
+		static bool isInt(const std::string& input);
+		static bool isFloat(const std::string& input);
+		static bool isDouble(const std::string& input);
+		void	ScalarConverter::toChar(const std::string &input);
+
+};
+
+#endif
\ No newline at end of file