Catch and compute overflow during multiplication of two large integers
Compared to checking upper half of the multiplication the clz-method should scale better (in worst case) than using a highly optimized 128-Bit multiplication to check for 64-Bit overflow. Multiplication needs …
c++ - How do I detect unsigned integer overflow? - Stack Overflow
Of note, this uses the partial Karatsuba method multiplicative decomposition to compute the high 32 bits of the 64-bit multiplication to check if any of them should become set to know if the 32-bit …
Safely check if signed multiplication would overflow in C++17
Nov 25, 2023 · I'm looking for a convenient idiom to check if a multiplication of two signed integers (long s or long long s) would overflow since signed arithmetic overflow is undefined behavior in C and C++. …
matlab - Keep getting invalid expression errors - Stack Overflow
Aug 7, 2020 · The expression between parentheses in the function definition line should be the name of the parameter to the function, not a value. I think you mean:
math - How can I check if multiplying two numbers in Java will cause …
Nov 2, 2009 · How can I check if multiplying two numbers in Java will cause an overflow? Asked 16 years, 1 month ago Modified 4 years, 11 months ago Viewed 44k times
detecting multiplication of uint64_t integers overflow with C
Dec 16, 2011 · Is there any efficient and portable way to check when multiplication operations with int64_t or uint64_t operands overflow in C? For instance, for addition of uint64_t I can do:
c - How to check if overflow occured? - Stack Overflow
Oct 7, 2011 · This is probably a rookie question, but how can I check some overflow affected the value of my numbers in C. For example, when multiplying integers, and waiting for an integer result, if …
algorithm - How do I detect overflow while multiplying two 2's ...
Apr 26, 2010 · Check if one is less than a maximum value divided by the other. (All values are taken as absolute). 2's complementness hardly has anything to do with it, since the multiplication overflows if …
Dealing with overflow and underflow in integer and floating-point ...
Apr 3, 2024 · I need to check for both overflow and underflow, and in case of such occurrences, the result should be set to the integer limit, and a warning should be printed informing the user about the …
Matrix Multiplication Error in MATLAB R2022 but Not in R2024 (ECEF …
Mar 27, 2025 · Has anyone encountered similar version-specific issues with matrix multiplication in MATLAB? Are there known changes between MATLAB R2022 and R2024 that could cause this error …