Define strings in C language: use a null-terminated character array, the syntax is: char string_name[] = "string value"; The array size must be enough to accommodate the string and null characters.
Define a string in C language
In C language, a string is a one-dimensional character Array terminated by a null character ('\0'). To define a string, you can use the following syntax:
char string_name[] = "string value";
where:
-
string_name
is the name of the string. -
[]
indicates that the variable is an array. -
"string value"
is the actual value of the string, including quotes. -
'\0'
is the null character, which is automatically appended to the end of the string.
Example:
char myString[] = "Hello World";
This statement defines a character array named myString
, which contains the string "Hello World" and its null character ending.
Important:
- The size of the string array must be large enough to accommodate the string and its null character termination.
- The first element of the string array (i.e.
string_name[0]
) is the first character of the string. -
'\0'
The null character is necessary to determine the end of the string. - You can also use string constants, as follows:
char *myString = "Hello World";
In this case, myString
is a pointer to a string constant, and Not an array. String constants are stored by the compiler and cannot be modified.
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