ECS 30 Lecture Notes - Lecture 1: Exit Status, Newline, Gnu Compiler Collection
17 Jan 2018
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It will either be void to prevent arguments or the main will accept arguments. An integer value is returned to the os to signify what happened. The body of a function is ({ }) Statements are indented by tabs to improve readability. The compiler we will be using is for this class is a gcc. This creates an executable file with the extension . out. The file command in unix gives the information about the file. /(file name) will execute the file if it is an executable. The line echo 0 will show the exit status, which allows the programmer to see it. An exit with 0 is means the program ran smoothly, while other numbers correspond to an error. This program calls the printf() function which prints a string represented through (" ") The \n is a newline character that forces a newline. The first line is a header which provides the definition of printf().
