How can you print multiple variables inside a string using printf?
Change the line where you print the output to: See the docs here
printf
%i or %d to print integer in C using printf()?
They are completely equivalent when used with printf(). Personally, I prefer %d, it’s used more often (should I say “it’s the idiomatic conversion specifier for int“?). (One difference between %i and %d is that when used with scanf(), then %d always expects a decimal integer, whereas %i recognizes the 0 and 0x prefixes as octal and hexadecimal, but no sane programmer uses scanf() anyway so this should not be a concern.)
How can one print a size_t variable portably using the printf family?
Use the z modifier:
Data argument not used by format strings in C
Format string specifiers for printf use % to denote the start of a format specifier, not &.
How to printf a memory address in C
Use the format specifier %p: The standard requires that the argument is of type void* for %p specifier. Since, printf is a variadic function, there’s no implicit conversion to void * from T * which would happen implicitly for any non-variadic functions in C. Hence, the cast is required. To quote the standard: 7.21.6 Formatted … Read more
What does %s and %d mean in printf in the C language?
The printf() family of functions uses % character as a placeholder. When a % is encountered, printf reads the characters following the % to determine what to do: See this Wikipedia article for a nice picture: printf format string The \n at the end of the string is for a newline/carriage-return character.
How to print a char array in C through printf?
The code posted is incorrect: a_static and b_static should be defined as arrays. There are two ways to correct the code: you can add null terminators to make these arrays proper C strings: Alternately, printf can print the contents of an array that is not null terminated using the precision field: The precision given after the . specifies the maximum number of characters … Read more
Arduino sprintf float not formatting
Due to some performance reasons %f is not included in the Arduino’s implementation of sprintf(). A better option would be to use dtostrf() – you convert the floating point value to a C-style string, Method signature looks like: Use this method to convert it to a C-Style string and then use sprintf, eg: You can change the minimum width and … Read more
What does “%.*s” mean in printf?
You can use an asterisk (*) to pass the width specifier/precision to printf(), rather than hard coding it into the format string, i.e.
What’s up with Java’s “%n” in printf?
From a quick google: There is also one specifier that doesn’t correspond to an argument. It is “%n” which outputs a line break. A “\n” can also be used in some cases, but since “%n” always outputs the correct platform-specific line separator, it is portable across platforms whereas”\n” is not. Please refer https://docs.oracle.com/javase/tutorial/java/data/numberformat.html Original source