free

Remonter à Alloc.h - Index

Header File

alloc.h, stdlib.h

Category

Memory Routines

Prototype

void free(void *block);

Description

Frees allocated block.

free deallocates a memory block allocated by a previous call to calloc, malloc, or realloc.

Return Value

None.

Example

 #include <string.h>
 #include <stdio.h>
 #include <alloc.h>
 int main(void)
 {
    char *str;
    /* allocate memory for string */
    str = (char *) malloc(10);
    /* copy "Hello" to string */
    strcpy(str, "Hello");
    /* display string */
    printf("String is %s\n", str);
    /* free memory */
    free(str);
    return 0;
 }

Portability

POSIX	Win32	ANSI C	ANSI C++
+	+	+	+