The article highlights that converting a float to an int in C++ can result in undefined behavior if the value cannot fit into the destination integer type, even when using explicit casts like static_cast. It points out that common libraries such as Microsoft's GSL do not properly handle this case, relying on platform-specific assumptions rather than standard compliance.
Background
In C++, floating-point to integer conversions are allowed by the language but can lead to undefined behavior when the value exceeds the range of the target integer type. This issue is often overlooked due to lack of compiler warnings and widespread use of implicit or explicit casts.
- Source
- Lobsters
- Published
- Jul 30, 2026 at 11:47 AM
- Score
- 7.0 / 10