convert char to C

To convert a char to an integer in C++, you can use the typecast operator. Here's an example:

char c = 'A';
int i = static_cast<int>(c);

In this example, we have a char variable c with the value 'A'. To convert it to an integer, we use the static_cast<int> operator to cast c to an int. The resulting value is stored in the int variable i.

The static_cast operator is used for explicit type conversions in C++. It tells the compiler to interpret the value of c as an int and perform the conversion accordingly. The resulting int value will have the ASCII value of the character 'A', which is 65.

By using the static_cast<int> operator, we ensure that the type conversion is done explicitly and safely. This helps to make the code more readable and maintainable.

Note: It's important to be cautious when converting char values to integers, especially if the char represents a digit character. In C++, the ASCII values for digit characters are not guaranteed to be consecutive. To convert a digit character to its corresponding integer value, you can subtract the ASCII value of '0' from the char value. For example:

char digit = '5';
int value = digit - '0';

In this example, the difference between the ASCII value of '5' and '0' is 5, so the resulting int value will be 5.