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The Infamous “Hello World” Program

The Infamous “Hello World” Program. The Infamous “Hello World” Program. /* Block Comments */ // End-of-Line (new in C99). #include <stdio.h>  /* putc(), stdout */ int main(void) { putc('H', stdout); putc('e', stdout); putc('l', stdout); putc('l', stdout); putc('o', stdout);

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The Infamous “Hello World” Program

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  1. The Infamous “Hello World” Program The Infamous “Hello World” Program /* Block Comments */ // End-of-Line (new in C99) #include <stdio.h>  /* putc(), stdout */ int main(void) { putc('H', stdout); putc('e', stdout); putc('l', stdout); putc('l', stdout); putc('o', stdout); putc(' ', stdout); putc('W', stdout); putc('o', stdout); putc('r', stdout); putc('l', stdout); putc('d', stdout); putc('!', stdout); putc('\n', stdout); return 0; } <> for Standard Include Directory “” for Current Directory first Preprocessor Directive Function call (or invocation) Statements end with semicolons. Argument List – comma separated Character Constant 4228160 (Borland TurboC/C++ v4.5) Function Definition ‘H’ = 72 (if ASCII is used) Type – “void” if nothing returned Name – EXACTLY one main() Parameter List – “void” of none taken int putc(int c, FILE *stream); Body = One Compound Statement

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