Table of Contents
- 1 How many arguments can be passed to printf?
- 2 How do you pass variable number of arguments?
- 3 How many arguments can be passed to scanf?
- 4 How many arguments does the C standard library function printf take?
- 5 What does fprintf return if it fails?
- 6 What is argument in printf?
- 7 How many arguments can be passed to a function in C?
- 8 What is the maximum number of arguments a stack can have?
How many arguments can be passed to printf?
Printf can take as many arguments as you want. In the man page you can see a at the end, which stands for a var args. If you got 96 times \%s in your first argument, you’ll have 97 arguments (The first string + the 96 replaced strings 😉 ) printf can take any number of inputs.
How do you pass variable number of arguments?
Only ellipses will be used to pass variable number of arguments….C – Variable Arguments
- Define a function with its last parameter as ellipses and the one just before the ellipses is always an int which will represent the number of arguments.
- Create a va_list type variable in the function definition.
How many arguments fprintf require?
In line 38, fprintf() function is called along with 5 arguments to write formatted data to the file. If the data has been written successfully to the file, it returns the number of characters written to the file, which is then assigned to variable chars.
WHAT IS function and how arguments are processed How can printf () and scanf () take multiple arguments?
printf or print function in C takes a formatting string and couple of optional variables as input and outputs strings to console while converting input variables to strings. Printf and scanf takes multiple arguments and these functions are called variable length arguments function or vararg function.
How many arguments can be passed to scanf?
two arguments
In this case, scanf() has always exactly two arguments. The way to determine how many arguments a function is receiving is to look at your code and search with your eyeballs for the function call in question.
How many arguments does the C standard library function printf take?
one argument
C Program 2.1 contains a printf() statement with only one argument, that is, a text string. This string is referred to as the message string and is always the first argument of printf().
What is variable argument number?
Variable length argument is a feature that allows a function to receive any number of arguments. There are situations where we want a function to handle variable number of arguments according to requirement.
What is the difference between printf and fprintf?
The difference between printf and fprintf is that printf is used to print a formatted string to a standard output which is most of the time a computer screen and fprintf is used to print a formatted string to a specific file. printf and fprintf can be used according to the task.
What does fprintf return if it fails?
The fprintf() function returns the number of bytes that are printed or a negative value if an output error occurs.
What is argument in printf?
The parameters passed into printf() are known as arguments; these are separated commas. C Program 2.1 contains a printf() statement with only one argument, that is, a text string. This string is referred to as the message string and is always the first argument of printf().
What are the properties of first argument of a printf functions?
Discussion Forum
| Que. | What are the Properties of first argument of a printf functions? |
|---|---|
| b. | It keeps the record of the types of arguments that will follow |
| c. | There may no be first argument |
| d. | None of the mentioned |
| Answer:It keeps the record of the types of arguments that will follow |
How many arguments does the printf function take?
In your first case, it takes 3 arguments. In the second case, it takes 4 arguments. printfis a variadic function. It takes a variable number of arguments. In C, functionality for such functions is provided using the stdarg.h(or varargs.h) header file. Share Improve this answer Follow answered Jun 3 ’15 at 11:00
How many arguments can be passed to a function in C?
There is no fixed limit on the number of arguments that can be passed, tho a specific compiler may of course implement some restrictions. Variable arguments work by simply pushing more and more variables onto the stack.
What is the maximum number of arguments a stack can have?
There is no limit, unless you consider the size of the stack itself which could be, in theory, as large as the physical memory of your computer plus the size of the disk partition used for memory swapping. In the case of printf, the callee retrieves as many arguments as are needed to satisfy the format string.
How do variable arguments work in C?
Variable arguments work by simply pushing more and more variables onto the stack. The called function is responsible for figuring out how many arguments have been passed. In the case of printf and friends, this can be computed by looking at the number of substitutions in the format string.