What does void mean in C language?

#What does void mean in C language?

In C language, "void" means untyped, and the corresponding "void *" means untyped pointer. It is commonly used in programming to define parameter types, return values, and pointer types in functions. Make a declaration, its function is to limit the function return and parameters.

C language keywords

auto: declare automatic variables

break: jump out of the current loop

case: switch statement branch

char: declare character variable or function return value type

const: declare read-only variable

continue: end the current loop and start the next cycle

default: The "default" branch in the switch statement

do: The loop body of the loop statement

double: Declare a double-precision floating-point variable or function return value type

else: Negative branch of conditional statement (used with if)

enum: Declaration of enumeration type

extern: Declaration of variables or functions defined in other files or other locations in this file

float: declare floating point variable or function return value type

for: a loop statement

goto: unconditional jump statement

if: conditional statement

int: Declare an integer variable or function

long: Declare a long integer variable or function return value type

register: Declare a register variable

return: Sub Program return statement (can be with or without parameters)

short: declare a short integer variable or function

signed: declare a signed type variable or function

sizeof : Calculate the data type or variable length (that is, the number of bytes occupied)

static : Declare static variables

struct: Declare structure type

switch : Used for switch statements

typedef: used to alias the data type

unsigned: declare an unsigned type variable or function

union: declare a union type

void: Declare a function with no return value or parameters, declare an untyped pointer

volatile: indicate that variables can be implicitly changed during program execution

while: loop condition of a loop statement

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