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13.2 Integer Overflow
In practice many portable C programs assume that signed integer overflow wraps around reliably using two’s complement arithmetic. Yet the C standard says that program behavior is undefined on overflow, and in a few cases C programs do not work on some modern implementations because their overflows do not wrap around as their authors expected. Conversely, in signed integer remainder, the C standard requires overflow behavior that is commonly not implemented.
| 13.2.1 Basics of Integer Overflow | Why integer overflow is a problem | |
| 13.2.2 Examples of Code Assuming Wraparound Overflow | Examples of code assuming wraparound | |
| 13.2.3 Optimizations That Break Wraparound Arithmetic | Optimizations that break uses of wraparound | |
| 13.2.4 Practical Advice for Signed Overflow Issues | Practical advice for signed overflow issues | |
| 13.2.5 Signed Integer Division and Integer Overflow | INT_MIN / -1 and INT_MIN % -1
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