Everyone engaged in embedded development writes code in C language. Many people are accustomed to using if and switch, and when defining data structures, they only use character types, integer types, arrays, and bits; rarely utilizing structs, unions, or enums. Today, I will summarize my own set of C programming methods. 1. Clever Use of … Read more
During the process of writing this 8*8 key program, whether I was writing it myself or referencing others’ programs, I found that I had many misunderstandings about some basic points of C language and programming norms. Some were due to my previous bad programming habits, and some were a manifestation of not having a solid … Read more
Have you heard this joke? A programmer walks into a bar and says to the bartender, “Can I get a beer? And add a while(1)?”The bartender is puzzled: “Do you want me to create an infinite loop?”The programmer laughs and says, “No, boss, I just want a drink that never ends.” As you can see, … Read more
1.1 Definition Implicit type conversion, also known as automatic type conversion, is performed automatically by the compiler during the compilation process, without the need for the programmer to explicitly perform operations. 1.2 Type Conversion in Arithmetic Operations 1.2.1 Definition When values of different types participate in arithmetic operations, the compiler promotes the operand of the … Read more
First, there is no communication issue between threads within the same process. You can access data however you want; thus, we actually need to do something to actively “isolate” different threads to avoid dirty reads and writes. Second, multi-threaded programming (as well as multi-process programming) requires a foundation in operating systems. Without understanding the operating … Read more
