Answer / Saurabh Sharma

In C, the header files are searched using a predefined sequence of directories. Here's the standard search order: 1) The directory containing the current file (where your .c or .h file is located). 2) The set of include paths specified with the -I option to the compiler. 3) An implementation-defined set of system directories. When including a header, if it's not found in the standard search order, compilation errors occur.

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