Explanation: #ifelse is not a preprocessor directive. ... There is a preprocessor directive, #elif, which performs the function of else-if.

What is an example of preprocessor directives?

Examples of some preprocessor directives are: #include, #define, #ifndef etc. Remember that # symbol only provides a path that it will go to the preprocessor, and command such as include is processed by preprocessor program. For example, include will include extra code to your program.

What a preprocessor directive is?

Preprocessor directives are lines of the source file where the first non-whitespace character is # , which distinguishes them from other lines of text. The effect of each preprocessor directive is a change to the text and the result is a transformation of the text that does not contain the directives nor comments.