libqhull: userprintf.c Source File

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00001 /*<html><pre>  -<a                             href="qh-user.htm"
00002   >-------------------------------</a><a name="TOP">-</a>
00003 
00004    userprintf.c
00005    qh_fprintf()
00006 
00007    see README.txt  see COPYING.txt for copyright information.
00008 
00009    If you recompile and load this file, then userprintf.o will not be loaded
00010    from qhull.a or qhull.lib
00011 
00012    See libqhull.h for data structures, macros, and user-callable functions.
00013    See user.c for qhull-related, redefinable functions
00014    see user.h for user-definable constants
00015    See usermem.c for qh_exit(), qh_free(), and qh_malloc()
00016    see Qhull.cpp and RboxPoints.cpp for examples.
00017 
00018    Please report any errors that you fix to qhull@qhull.org
00019 */
00020 
00021 #include "libqhull.h"
00022 
00023 #include <stdarg.h>
00024 #include <stdio.h>
00025 #include <stdlib.h>
00026 
00027 /*-<a                             href="qh-user.htm#TOC"
00028    >-------------------------------</a><a name="qh_fprintf">-</a>
00029 
00030    qh_fprintf(fp, msgcode, format, list of args )
00031      print arguments to *fp according to format
00032      Use qh_fprintf_rbox() for rboxlib.c
00033 
00034    notes:
00035      same as fprintf()
00036      fgets() is not trapped like fprintf()
00037      exit qh_fprintf via qh_errexit()
00038 */
00039 
00040 void qh_fprintf(FILE *fp, int msgcode, const char *fmt, ... ) {
00041     va_list args;
00042 
00043     if (!fp) {
00044         fprintf(stderr, "QH6232 Qhull internal error (userprintf.c): fp is 0.  Wrong qh_fprintf called.\n");
00045         qh_errexit(6232, NULL, NULL);
00046     }
00047     va_start(args, fmt);
00048 #if qh_QHpointer
00049     if (qh_qh && qh ANNOTATEoutput) {
00050 #else
00051     if (qh ANNOTATEoutput) {
00052 #endif
00053       fprintf(fp, "[QH%.4d]", msgcode);
00054     }else if (msgcode >= MSG_ERROR && msgcode < MSG_STDERR ) {
00055       fprintf(fp, "QH%.4d ", msgcode);
00056     }
00057     vfprintf(fp, fmt, args);
00058     va_end(args);
00059 
00060     /* Place debugging traps here. Use with option 'Tn' */
00061 
00062 } /* qh_fprintf */
00063