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In POS system, cashier computer connect to printer using serial rs232 usb or cable. We need to capture data from that connection, and parsing the data to get total amount for every transaction at POS, then send it to database server via internet. if require, using raspberry or arduino, also gsm modem to send the data. While capture the data, the POS pc still print bill normally.
Skills required are C Programming, Electronics, Embedded Software, Microcontroller, Python
Write a simple program in C++ to investigate the safety of its enumeration types. Include at least 10 different operations on enumeration types that are incorrect/unsafe things to
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A: Using the extern "C" linkage specification around the C function declarations. Programmers must know about mangled function names and type-safe linkages. After that they must
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