What is %lu in C?
A printf format specifier follows the form %[flags][width][.
u is a specifier meaning “unsigned decimal integer”.
l is a length modifier meaning “long”.
The length modifier should go before the conversion specifier, which means %lu is correct..
What does File mean in C?
A file represents a sequence of bytes on the disk where a group of related data is stored. File is created for permanent storage of data. It is a ready made structure. In C language, we use a structure pointer of file type to declare a file.
Is file a built in data type in C?
A FILE is a type of structure typedef as FILE. It is considered as opaque data type as its implementation is hidden. We don’t know what constitutes the type, we only use pointer to the type and library knows the internal of the type and can use the data. Definition of FILE is in stdio although it is system specific.
Which is correct syntax?
Along with diction, syntax is a fundamental part of written language. … Syntax states the rules for using words, phrases, clauses and punctuation, specifically to form sentences. Correct syntax examples include word choice, matching number and tense, and placing words and phrases in the right order.
What is offset in C?
In computer engineering and low-level programming (such as assembly language), an offset usually denotes the number of address locations added to a base address in order to get to a specific absolute address. … In this context an offset is sometimes called a relative address.
What is strcmp in C?
Description. The C library function int strcmp(const char *str1, const char *str2) compares the string pointed to, by str1 to the string pointed to by str2.
What is data type explain?
In computer science and computer programming, a data type or simply type is an attribute of data which tells the compiler or interpreter how the programmer intends to use the data. … This data type defines the operations that can be done on the data, the meaning of the data, and the way values of that type can be stored.
How many types of data types are there?
Data types are divided into two groups: Primitive data types – includes byte , short , int , long , float , double , boolean and char. Non-primitive data types – such as String, Arrays and Classes (you will learn more about these in a later chapter)
What are different types of files in C?
C Language File TypesSource files: These files contain function definitions, and have names which end in . … Header files: These files contain function prototypes and various pre-processor statements (see below). … Object files: These files are produced as the output of the compiler.More items…
What are the real data types in C?
Data TypesTypeRange of valueschar (Characters)-128 to 127int Integers (whole numbers)-32768 to 32767float Floating point (real numbers)3.4e-38 to 3.4e+38double (Double)1.7e-308 to 1.7e+308Feb 26, 2020
What is Fseek in C?
fseek() in C/C++ with example Last Updated: 02-06-2017. fseek() is used to move file pointer associated with a given file to a specific position. Syntax: int fseek(FILE *pointer, long int offset, int position) pointer: pointer to a FILE object that identifies the stream.