Page 23 - C-Language

Examples 387
Dereferencing a null pointer 387

Modifying any object more than once between two sequence points 387

Missing return statement in value returning function 388

Signed integer overflow 389

Use of an uninitialized variable 390

Dereferencing a pointer to variable beyond its lifetime 391

Division by zero 392

Accessing memory beyond allocated chunk 392

Copying overlapping memory 392
Reading an uninitialized object that is not backed by memory 393

Data race 394

Read value of pointer that was freed 395

Modify string literal 395

Freeing memory twice 396

Using incorrect format specifier in printf 396

Conversion between pointer types produces incorrectly aligned result 397
Addition or subtraction of pointer not properly bounded 397

Modifying a const variable using a pointer 398

Passing a null pointer to printf %s conversion 398

Inconsistent linkage of identifiers 399

Using fflush on an input stream 400

Bit shifting using negative counts or beyond the width of the type 400

Modifying the string returned by getenv, strerror, and setlocale functions 401

Returning from a function that's declared with `_Noreturn` or `noreturn` function specifie 401

Chapter 60: Unions 403

Examples 403

Difference between struct and union 403

Using unions to reinterpret values 403

Writing to one union member and reading from another 404
Chapter 61: Valgrind 406

Syntax 406

Remarks 406