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A generator expression may be used in Python versions >= 2.4 which gives lazy evaluation over its input, and can be used with generators to iterate over 'infinite' input such as the count generator function which returns successive integers:
Beyond Compare is a cross-platform proprietary data comparison utility. The program is able to compare files and multiple types of directories , as well as archives . [ 2 ] Beyond Compare can be configured as a difftool and mergetool of version control systems , such as git .
The savings in processing time can be significant, because retrieving a value from memory is often faster than carrying out an "expensive" computation or input/output operation. [1] The tables may be precalculated and stored in static program storage, calculated (or "pre-fetched" ) as part of a program's initialization phase ( memoization ), or ...
In C, the functions strcmp and memcmp perform a three-way comparison between strings and memory buffers, respectively. They return a negative number when the first argument is lexicographically smaller than the second, zero when the arguments are equal, and a positive number otherwise.