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usermem_r-cpp.cpp
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Sun, Aug 4, 08:54

usermem_r-cpp.cpp
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/*<html><pre> -<a href="qh-user_r.htm"
>-------------------------------</a><a name="TOP">-</a>
usermem_r-cpp.cpp
Redefine qh_exit() as 'throw std::runtime_error("QH10003 ...")'
This file is not included in the Qhull builds.
qhull_r calls qh_exit() when qh_errexit() is not available. For example,
it calls qh_exit() if you linked the wrong qhull library.
The C++ interface avoids most of the calls to qh_exit().
If needed, include usermem_r-cpp.o before libqhullstatic_r.a. You may need to
override duplicate symbol errors (e.g. /FORCE:MULTIPLE for DevStudio). It
may produce a warning about throwing an error from C code.
*/
extern "C" {
void qh_exit(int exitcode);
}
#include <stdexcept>
#include <stdlib.h>
/*-<a href="qh-user_r.htm#TOC"
>-------------------------------</a><a name="qh_exit">-</a>
qh_exit( exitcode )
exit program
notes:
same as exit()
*/
void qh_exit(int exitcode) {
exitcode= exitcode;
throw std::runtime_error("QH10003 Qhull error. See stderr or errfile.");
} /* exit */
/*-<a href="qh-user_r.htm#TOC"
>-------------------------------</a><a name="qh_fprintf_stderr">-</a>
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
It is typically followed by qh_errexit().
Redefine this function to avoid using stderr
Use qh_fprintf [userprintf_r.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 */
/*-<a href="qh-user_r.htm#TOC"
>-------------------------------</a><a name="qh_free">-</a>
qh_free(qhT *qh, mem )
free memory
notes:
same as free()
No calls to qh_errexit()
*/
void qh_free(void *mem) {
free(mem);
} /* free */
/*-<a href="qh-user_r.htm#TOC"
>-------------------------------</a><a name="qh_malloc">-</a>
qh_malloc( mem )
allocate memory
notes:
same as malloc()
*/
void *qh_malloc(size_t size) {
return malloc(size);
} /* malloc */

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