~What does scanf mean in C language?

scanf is a C language standard library function used to read data from standard input. The function prototype is int scanf(const char *format, ...), where format specifies the type and format of the data to be read, and ... is a variable number of parameters pointing to the variable address of the data to be read. Returns the number of input items successfully read, or EOF (-1) if no input could be read.

scanf Meaning in C language

scanf Is a standard library function in the C programming language for reading data from standard input.

Function prototype:

<code class="c">int scanf(const char *format, ...);</code>

Parameters:

• format: a format character String, specifying the type and format of the data to be read.
• ...: A variable number of parameters, pointing to the address of the variable to read the data.

Return value:

scanf Returns the number of successfully read input items. If no input can be read due to an error or end-of-file reached, EOF (-1) is returned.

Usage:

scanf Use a format string to instruct it to read data from the input stream. The format string specifies the type and format of the data to be read. Commonly used format specifiers include:

• %d - integer
• %f - floating point number
• %c - character
• %s - string

Example:

<code class="c">int age;
char name[20];

scanf("%d %s", &age, name);</code>

in this example , scanf will read an integer from standard input and store it in the age variable, and then read a string and store it in name in the array.

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