Sams Teach Yourself C in 21 Days

Converting a Character’s Case: A Portability Example A common practice in programming is to convert the case of a character. Man ...

Portability Issues 815 D As you can see, this is a function that already exists. In addition, this function is defined by ANSI s ...

A program can’t assume that the word alignment will be the same or that it will be on or off. The members could be aligned on ev ...

Portability Issues 817 D Using Predefined Constants Every compiler comes with predefined constants. A majority of these are typi ...

6: * different compilers. * 7: *=======================================================*/ 8: #include <stdio.h> 9: #ifdef ...

Portability Issues 819 D Here’s the output you’ll see when you run the program using a Borland C++ compiler under DOS: NOT DOING ...

ANSI Standard Header Files Several header files that can be included are set by the ANSI standards. It’s good to know which head ...

Portability Issues 821 D Workshop The Workshop provides quiz questions to help you solidify your understanding of the material c ...

printf(“*”); } } Write a function that verifies that a character is a vowel. Write a function that returns 0 if it receives a c ...

APPENDIX E Common C Functions This appendix lists the function prototypes contained in each of the header files supplied with mo ...

TABLEE.1 Common C functions listed in alphabetical order Function Header File Function Prototype abort* stdlib.h void abort(void ...

Common C Functions 825 E fgetc* stdio.h int fgetc(FILE *); fgetpos stdio.h int fgetpos(FILE *, fpos_t *); fgets* stdio.h char *f ...

isdigit* ctype.h int isdigit(int); isgraph* ctype.h int isgraph(int); islower* ctype.h int islower(int); isprint* ctype.h int is ...

Common C Functions 827 E putchar* stdio.h int putchar(int); puts* stdio.h int puts(const char *); qsort* stdlib.h void qsort(voi ...

strncmp* string.h int strncmp(const char *, const char *, size_t); strncpy* string.h char *strncpy(char *, const char *, size_t) ...

APPENDIX F Answers This appendix lists the answers for the quizzes and exercise sections at the end of each day’s lesson. Note t ...

Note: C++ uses the extension .CPP. You can write and compile your C programs with a .CPP extension, but it’s more appropriate to ...

Answers 831 F Answers for Day 2 Quiz A block. The main()function. You use program comments to make notations about the program’ ...

d. The function definition for display_line()is on lines 16 through 22. e. Comments are on lines 1, 15, and 23. A comment is an ...

Answers 833 F Names of variables and constants should describe the data being stored. Variable names should be in lowercase, an ...