printf()

template<typename... Args>

size_t fl::SerialPort::printf ( const char * format, Args... args )

inline

Print formatted string to serial output (printf-style)

Template Parameters

Args	Variadic template arguments

Parameters

format	Printf-style format string
args	Variable arguments

Returns

Number of bytes written

Example:

fl::Serial.printf("Value: %d, Hex: 0x%X\n", 42, 255);

Note: Maximum formatted string length is 256 characters.

Definition at line 277 of file serial.h.

                                                                 {
    if (!format) {
        return 0;
    }
 
    // Format into a fixed-size buffer using fl::snprintf
    char buffer[256];  // Maximum formatted string length
    int len = fl::snprintf(buffer, sizeof(buffer), format, args...);
 
    if (len < 0) {
        return 0;  // Formatting error
    }
 
    // Delegate to print() method
    return print(buffer);
}

References args, fl::format(), print(), and fl::snprintf().

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