Whether you are hunting for zero-day vulnerabilities, analyzing state-sponsored malware, or reviving a 20-year-old binary without source code, mastering "F5" and its surrounding techniques will make you a faster, more effective reverse engineer.
int __cdecl check_value(int input)
: Load a binary into IDA Pro right now, find an unknown function, and press F5 . Then rename a variable. Then set a struct. Watch the assembly melt away into clarity. That is the power of decompilation. ida pro decompile to c