Local Variable

Understanding C++ Scope and Namespace

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Understanding C++ Scope and Namespace

Preface Every variable, function, array, structure, class, and other entities have their own valid scope, which is the scope of the variable. The namespace is a user-defined scope introduced in ANSI C++ to handle common naming conflicts in programs. Meet/Yourself ➤C++ Scope Every variable, function, array, structure, class, and other entities have their own valid … Read more

Understanding C Language Rules to Avoid Code Issues

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Understanding C Language Rules to Avoid Code Issues

We have a product that requires LED lights to flash in sync. The area controller (in an STM32 microcontroller environment) sends wireless signals based on GPS signals to control the start time of the light flashes, achieving synchronization. A colleague implemented a function to send wireless signals, similar to the following: int RS232_lora_sendAlignInfo(void){ uint8_t send_buf[] … Read more