Page 5 - C-Language
P. 5
Examples 55
/* */ delimited comments 55
// delimited comments 56
Commenting using the preprocessor 56
Possible pitfall due to trigraphs 57
Chapter 11: Common C programming idioms and developer practices 58
Examples 58
Comparing literal and variable 58
Do not leave the parameter list of a function blank — use void 58
Chapter 12: Common pitfalls 62
Introduction 62
Examples 62
Mixing signed and unsigned integers in arithmetic operations 62
Mistakenly writing = instead of == when comparing 62
Incautious use of semicolons 64
Forgetting to allocate one extra byte for \0 64
Forgetting to free memory (memory leaks) 65
Copying too much 67
Forgetting to copy the return value of realloc into a temporary 67
Comparing floating point numbers 67
Doing extra scaling in pointer arithmetic 69
Macros are simple string replacements 70
Undefined reference errors when linking 72
Misunderstanding array decay 74
Passing unadjacent arrays to functions expecting "real" multidimensional arrays 76
Using character constants instead of string literals, and vice versa 78
Ignoring return values of library functions 78
Newline character is not consumed in typical scanf() call 79
Adding a semicolon to a #define 80
Multi-line comments cannot be nested 81
Overstepping array boundaries 83
Recursive function — missing out the base condition 83
Checking logical expression against 'true' 85
