operator precedence

Understanding Macro Definitions in C Language: Common Errors and Solutions

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Understanding Macro Definitions in C Language: Common Errors and Solutions

In some exam questions, macro definitions as shown in the following images often appear. Are these macro definitions correct? They are definitely wrong! This has caused considerable trouble for teaching and students when solving problems. This article will analyze the relevant knowledge of macro definitions, the side effects caused by similar errors, and provide guidance … Read more

Why Does (++i) + (++i) Result in 6 When i=1 in C Language?

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Why Does (++i) + (++i) Result in 6 When i=1 in C Language?

For this calculation, most programming languages yield a result of 5, but in C language, the result is 6. This article explains why. One explanation comes from the perspective of assembly language, which shows the corresponding assembly code for the relevant C statements, illustrating how the assembly code computes the result of 6 by performing … Read more