What does semantic error mean?

General program errors can be roughly divided into grammatical errors and semantic errors.

In computer programming, logical error (also called logical error) is a kind of program error, which will lead to program running error, but will not crash. Logical errors may produce unexpected outputs or results, but they may not be discovered immediately.

Logical errors may occur in both compiled and interpreted languages. Unlike programs with incorrect syntax, programs with incorrect logic have correct syntax, but the running results are not in line with expectations. The only manifestation of logical error is the wrong running result.

In C++ language, logical error is a special exception.

Logical errors may be statement errors (such as formula writing errors), algorithm errors, or even choosing the wrong algorithm. In addition, there are some other reasons, such as type conversion error, variable range error, missing code segment, misunderstanding of problems or requirements, and so on.

C language is a process-oriented abstract general programming language, which is widely used in the underlying development. C language can compile and process low-level memory in a simple way. C language is an efficient programming language, which only produces a small amount of machine language and can run without the support of any running environment.

Although C language provides many low-level processing functions, it still maintains the cross-platform characteristics. C language programs written in standard specifications can be compiled on many computer platforms, including embedded processors and supercomputers.