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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2010-10-18 11:26:42 +0200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2010-10-18 11:26:42 +0200 |
| commit | 655d270c45e57aea5a3ae9c96959c2a11cfbd02f (patch) | |
| tree | d83cf44ccd873c261b537bee5f77315993725672 | |
| parent | b4b57a956078b5d9ea8f90fe0f36447d5bed310a (diff) | |
| download | man-pages-655d270c45e57aea5a3ae9c96959c2a11cfbd02f.tar.gz | |
malloc.3: Emphasize that malloc() and realloc() do not initialize allocated memory
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
| -rw-r--r-- | man3/malloc.3 | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/man3/malloc.3 b/man3/malloc.3 index faba11ee02..4067aeab05 100644 --- a/man3/malloc.3 +++ b/man3/malloc.3 @@ -25,7 +25,7 @@ .\" Documented MALLOC_CHECK_, Wolfram Gloger (wmglo@dent.med.uni-muenchen.de) .\" 2007-09-15 mtk: added notes on malloc()'s use of sbrk() and mmap(). .\" -.TH MALLOC 3 2010-10-03 "GNU" "Linux Programmer's Manual" +.TH MALLOC 3 2010-10-18 "GNU" "Linux Programmer's Manual" .SH NAME malloc, free, calloc, realloc \- Allocate and free dynamic memory .SH SYNOPSIS @@ -44,7 +44,7 @@ The function allocates .I size bytes and returns a pointer to the allocated memory. -The memory is not cleared. +.IR "The memory is not initialized" . If .I size is 0, then @@ -97,8 +97,10 @@ to .I size bytes. The contents will be unchanged in the range from the start of the region -up to the minimum of the old and new sizes; -newly allocated memory will be uninitialized. +up to the minimum of the old and new sizes. +If the new size is larger than the old size, the added memory will +.I not +be initialized. If .I ptr is NULL, then the call is equivalent to |