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Function Details : printf

intprintf(const char * format,... args) ;

Return Type : int

Integer type (typically 4 bytes, -2,147,483,648 to 2,147,483,647)
Read about return values of printf function .

1st Parameter Type : const char *

Pointer to read-only string

1st Parameter

A format string that specifies how subsequent arguments are converted for output. Contains ordinary characters and format specifiers.

2nd Parameter Type : ...

Represents a variable number of arguments in a function. Used in functions like `printf` or `fprintf` to accept additional parameters beyond those explicitly declared.

2nd Parameter

A variable number of arguments to be formatted and printed according to the `format` string.

Read more about parameters of printf in parameters section
The printffunction in C language Prints formatted output to the standard output stream.
The printf function writes output to stdout, the standard output stream, under control of a format string that specifies how subsequent arguments are converted for output. It supports various format specifiers for different data types and provides options for controlling the output format, including field width, precision, and alignment.
The printffunction takes 2 parameters:
  • •
    const char * `format`: A format string that specifies how subsequent arguments are converted for output. Contains ordinary characters and format specifiers.
  • •
    ... `args`: A variable number of arguments to be formatted and printed according to the `format` string.
Writes formatted output to the standard output stream based on the format string and additional arguments. The `format` string contains ordinary characters that are written as-is and format specifiers that define how the corresponding arguments are formatted. Returns the number of characters written (excluding the null terminator), or a negative value if an error occurs.
The printf function return value :
  • Returns the number of characters printed (excluding the null byte used to end output to strings)
  • If an output error occurs, a negative value is returned

Output

This example demonstrates basic usage of printf with different data types and format specifiers.