/* ---------------------------------
usermem.c
user redefinable functions -- qh_exit, qh_free, and qh_malloc
See README.txt.
If you redefine one of these functions you must redefine all of them.
If you recompile and load this file, then usermem.o will not be loaded
from qhull.a or qhull.lib
See libqhull.h for data structures, macros, and user-callable functions.
See user.c for qhull-related, redefinable functions
see user.h for user-definable constants
See userprintf.c for qh_fprintf and userprintf_rbox.c for qh_fprintf_rbox
Please report any errors that you fix to qhull@qhull.org
*/
#include "libqhull.h"
#include
#include
/*---------------------------------
qh_exit( exitcode )
exit program
the exitcode must be 255 or less. Zero indicates success.
Note: Exit status ('$?') in bash reports 256 as 0
notes:
qh_exit() is called when qh_errexit() and longjmp() are not available.
This is the only use of exit() in Qhull
To replace qh_exit with 'throw', see libqhullcpp/usermem_r-cpp.cpp
*/
void qh_exit(int exitcode) {
exit(exitcode);
} /* exit */
/*---------------------------------
qh_fprintf_stderr( msgcode, format, list of args )
fprintf to stderr with msgcode (non-zero)
notes:
qh_fprintf_stderr() is called when qh.ferr is not defined, usually due to an initialization error
if msgcode is a MSG_ERROR (6000), caller should set qh.last_errcode (like qh_fprintf) or variable 'last_errcode'
It is typically followed by qh_errexit().
Redefine this function to avoid using stderr
Use qh_fprintf [userprintf.c] for normal printing
*/
void qh_fprintf_stderr(int msgcode, const char *fmt, ... ) {
va_list args;
va_start(args, fmt);
if(msgcode)
fprintf(stderr, "QH%.4d ", msgcode);
vfprintf(stderr, fmt, args);
va_end(args);
} /* fprintf_stderr */
/*---------------------------------
qh_free( mem )
free memory
notes:
same as free()
No calls to qh_errexit()
*/
void qh_free(void *mem) {
free(mem);
} /* free */
/*---------------------------------
qh_malloc( mem )
allocate memory
notes:
same as malloc()
*/
void *qh_malloc(size_t size) {
return malloc(size);
} /* malloc */