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diff --git a/reference/C/MAN/realloc.htm b/reference/C/MAN/realloc.htm new file mode 100644 index 0000000..359cb98 --- /dev/null +++ b/reference/C/MAN/realloc.htm @@ -0,0 +1,97 @@ +<TITLE>realloc</TITLE> +<body bgcolor="#ffffcc"> +<hr> +<pre> + + + +<h3>MALLOC(3) Linux Programmer's Manual MALLOC(3) +</h3> + +<h3>NAME +</h3> calloc, malloc, free, realloc - Allocate and free dynamic + memory + +<h3>SYNOPSIS +</h3> #include <stdlib.h> + + void *calloc(size_t nmemb, size_t size); + void *malloc(size_t size); + void free(void *ptr); + void *realloc(void *ptr, size_t size); + +<h3>DESCRIPTION +</h3> calloc() allocates memory for an array of nmemb elements + of size bytes each and returns a pointer to the allocated + memory. The memory is set to zero. + + malloc() allocates size bytes and returns a pointer to the + allocated memory. The memory is not cleared. + + free() frees the memory space pointed to by ptr, which + must have been returned by a previous call to malloc(), + calloc() or realloc(). If ptr is NULL, no operation is + performed. + + realloc() changes the size of the memory block pointed to + by ptr to size bytes. The contents will be unchanged to + the minimum of the old an new sizes; newly allocated mem- + ory will be uninitialized. If ptr is NULL, the call is + equivalent to malloc(size); if size is equal to zero, the + call is equivalent to free(ptr). Unless ptr is NULL, it + must have been returned by an earlier call to malloc(), + calloc() or realloc(). + +<h3>RETURN VALUES +</h3> For calloc() and malloc(), the value returned is a pointer + to the allocated memory, which is suitably aligned for any + kind of variable, or NULL if the request fails. + + free() returns no value. + + realloc() returns a pointer to the newly allocated memory, + which is suitably aligned for any kind of variable and may + be different from ptr, or NULL if the request fails or if + size was equal to 0. If realloc() fails the original + block is left untouched - it is not freed or moved. + +<h3>CONFORMS TO +</h3> ANSI - C + +</pre> +<hr> +<h3>SEE ALSO +</h3><p> +<a href=brk.htm>brk</a>, +<pre> + + + + + +<h3>GNU April 4, 1993 1 +</h3> + +
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