Implicit Type Conversion

• Implicit Type Conversion is also known as automatic type conversion.
• It is done by the compiler on its own, without any external trigger from the user.
• C automatically converts any intermediate values to the proper type so that the expression can be evaluated without losing any significance

Explicit Type Conversion

• Explicit Type Conversion is also called type casting and it is user-defined.
• Here the user can typecast the result to make it of a particular datatype

Where:

type		is standard C datatype
expression		may be a constant, variable, or an expression

Advantage of Type Conversion

Type Safety	Type conversion can be used to ensure that data is being stored and processed in the correct data type, avoiding potential type mismatches and type errors.
Improved code readability	By explicitly converting data between different types, you can make the intent of your code clearer and easier to understand.
Improved performance	Type conversions can be used to optimize the performance of your code by converting data to a more efficient datatype for processing.
Improved Compatibility	Type conversions can be used to convert data between different types that are not compatible, allowing you to write code that is compatible with a wider range of APIs and libraries.
Improved data manipulation	Type conversions can be used to manipulate data in various ways, such as converting an integer, or converting a floating-point number to an integer.
Improved data storage	Type conversion can be used to store data in a more compact from, such as converting a large integer value to a smaller integer type, or converting a large floating-point value to a smaller floating-point type.

Disadvantage of Type Conversion

Loss of precision	Converting data from a larger datatype to a smaller data type can result in less of precision, as some of the data may be truncated.
Overflow or underflow	Converting data from a smaller datatype to larger datatype can result in overflow or underflow if the value being converted is too large or too small for the new data type.
Unexpected behavior	The conversions can lead to unexpected behavior such as when converting between signed and unsigned integer type or when converting between floating-point and integer types.
Confusing Syntax	Type conversions can have confusing syntax, particularly when using typecast operators or type conversion functions, making the code more difficult to read and understand.
Increased Complexity	Type conversions can increase the complexity of your code, making it harder to debug and maintain.
Slower performance	Type conversions can sometimes result in slower performance, particularly when converting data between complex data types such as between structures and arrays.