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The C Book1Mike Banahan Declan Brady Mark DoranJanuary 19911 Conversionto LaTeX by Ward van Wanrooij. Any layout issues are caused bymy conversion script and do not reflect on the authors. | The C Book1 Mike Banahan Declan Brady January 1991 Mark Doran 1 Conversion to LaTeX by Ward van Wanrooij. Any layout issues are caused by my conversion script and do not reflect on the authors. Also available on-line at http publications.gbdirect.co.uk c_book CONTENTS 1 Contents Preface 1 About This Book. 1 The Success of C. 2 Standards. 4 Hosted and Free-Standing Environments. 5 Typographical conventions. 6 Order of topics. 6 Example programs. 7 Deference to Higher Authority. 7 Address for the Standard. 7 1 An Introduction to C 9 1.1 The form of a C program. 9 1.2 Functions . 10 1.3 A description of Example 1.1 12 1.3.1 What was in it . 12 1.3.2 Layout and comment. 12 1.3.3 Preprocessor statements. 13 1.3.3.1 Dehne statements. 14 1.3.3.2 Summary . 14 1.3.4 Function declaration and dehnition. 15 1.3.4.1 Declaration. 15 1.3.4.2 Dehnition . 15 1.3.4.3 Summary . 16 1.3.5 Strings . 17 1.3.6 The main function. 18 1.3.7 Declarations. 18 1.3.8 Assignment statement . 19 1.3.9 The while statement . 19 1.3.10 The return statement . 20 1.3.10.1 Summary . 21 ii CONTENTS 1.3.11 Progress so far . 21 1.4 Some more programs. 21 1.4.1 A program to find prime numbers. 22 1.4.2 The division operators. 24 1.4.3 An example performing input. 24 1.4.4 Simple arrays. 25 1.4.5 Summary. 27 1.5 Terminology. 27 1.6 Summary . 28 1.7 Exercises. 28 2 Variables and Arithmetic 31 2.1 Some fundamentals . 31 2.2 The alphabet of C . 31 2.2.1 Basic Alphabet. 32 2.2.2 Trigraphs . 33 2.2.3 Multibyte Characters. 34 2.2.4 Summary. 35 2.3 The Textual Structure of Programs . 36 2.3.1 Program Layout. 36 2.3.2 Comment . 37 2.3.3 Translation phases . 38 2.4 Keywords and identifiers. 38 2.4.1 Keywords. 38 2.4.2 Identifiers. 39 2.5 Declaration of variables. 40 2.6 Real types. 41 2.6.1 Summary of real arithmatic. 44 2.6.2 Printing real numbers . 44 2.7 Integral types. 45 2.7.1 Plain integers. 45 2.7.2 Character variables. 46 2.7.3 More complicated types . 49 2.7.4 Summary of integral types. 51 2.7.5 Printing the
