write a program for sprint function using variable argument list function in c

C Program: Implementing Sprint Function with Variable Argument List

"Write a program for sprint function using variable argument list function in C" means to create a program in the C programming language that defines a function called sprint that uses a variable argument list to allow the function to take an unspecified number of arguments.

The sprint function should work similarly to the standard sprintf function, which allows the programmer to format a string using a format string and a set of arguments. However, instead of taking a fixed number of arguments, the sprint function should use a variable argument list to handle an arbitrary number of arguments.

To write a program for the sprint() function using a variable argument list function in C, we can use the following code:

#include 
#include 

int sprint(char *str, const char *format, ...) {
  va_list args;
  va_start(args, format);
  int len = vsprintf(str, format, args);
  va_end(args);
  return len;
}

int main() {
  char str[100];

  int len = sprint(str, "Hello, world! My name is %s.\n", "Bard");

  printf("%s", str);

  return 0;
}

Output:

Hello, world! My name is Bard.

The sprint() function works by taking a string buffer and a format string as input. The format string specifies how the variable arguments should be formatted and printed to the string buffer. The sprint() function then uses the vsprintf() function to perform the formatting and printing.

The vsprintf() function is a variadic function, which means that it can take a variable number of arguments. The first argument to the vsprintf() function is the string buffer where the formatted output should be printed. The second argument is the format string. The subsequent arguments are the variable arguments that should be formatted and printed to the string buffer.

The sprint() function returns the number of characters that were written to the string buffer.

This is a simple example of how to write a sprint() function using a variable argument list function in C. The sprint() function can be used to format and print variable arguments to a string buffer in a similar way to the printf() function.

Further Reading:

Variable argument list function in c

write a program for sprint function using variable argument list function in c

write a program to access nameless argument in c - variable argument list function

assignment of variable argument list function in c

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