From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001 From: Joseph Hunkeler Date: Wed, 8 Jul 2015 20:46:52 -0400 Subject: Initial commit --- sys/libc/realloc.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 sys/libc/realloc.c (limited to 'sys/libc/realloc.c') diff --git a/sys/libc/realloc.c b/sys/libc/realloc.c new file mode 100644 index 00000000..21446345 --- /dev/null +++ b/sys/libc/realloc.c @@ -0,0 +1,28 @@ +/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. +*/ + +#define import_spp +#define import_libc +#define import_xnames +#include + + +/* REALLOC -- Reallocate a buffer, i.e., change the size of an already +** allocated buffer. If necessary the buffer is moved, preserving any +** data in the buffer. +*/ +char * +realloc ( + char *buf, + unsigned newsize +) +{ + XINT x_nchars = (newsize + sizeof(XCHAR)-1) / sizeof(XCHAR); + XINT x_ptr, x_dtype = TY_CHAR; + + x_ptr = buf ? Memcptr(buf) : NULL; + iferr (REALLOC (&x_ptr, &x_nchars, &x_dtype)) + return (NULL); + else + return ((char *)&Memc[x_ptr]); +} -- cgit