From 01f9ae0f0fecf35334135c9a1bb3aa9e85d2d124 Mon Sep 17 00:00:00 2001
From: Felix Salfelder <felix@salfelder.org>
Date: Sat, 27 Aug 2016 04:47:18 +0100
Subject: [PATCH] fallback to C style traces, unless __cplusplus

---
 include/io_trace.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/include/io_trace.h b/include/io_trace.h
index a39adfb8..7d51affe 100644
--- a/include/io_trace.h
+++ b/include/io_trace.h
@@ -44,6 +44,8 @@
 /*--------------------------------------------------------------------------*/
 #ifdef DO_TRACE
 
+#ifdef __cplusplus
+
 #define trace_line() (std::cerr << "@@#\n@#@:" \
               << __FILE__ << ":" << __LINE__ << ":" << __func__ << "\n" )
 #define trace0(s) ( std::cerr << "@#@" << (s) << "\n")
@@ -102,6 +104,26 @@
 		     << "  " << #y << "=" << (y)  \
 		     << "  " << #z << "=" << (z)  \
 		     << "\n" )
+
+#else // no __cplusplus
+
+#define trace_line() (printf("@@#\n@#@:%s:%u:%s\n", \
+			   __FILE__, __LINE__, __func__))
+#define trace0(s) (printf("@#@%s\n", s))
+#define trace1(s,x) (printf("@#@%s  %s=%g\n", s, #x, (double)(x)))
+#define trace2(s,x,y) (printf("@#@%s  %s=%g  %s=%g\n",\
+	s, #x, (double)(x), #y, (double)(y)))
+#define trace3(s,x,y,z) (printf("@#@%s  %s=%g  %s=%g  %s=%g\n",\
+	s, #x, (double)(x), #y, (double)(y), #z, (double)(z)))
+#define trace4(s,w,x,y,z)(printf("@#@%s  %s=%g  %s=%g  %s=%g  %s=%g\n",\
+	s, #w, (double)(w), #x, (double)(x), #y, (double)(y), #z, (double)(z)))
+#define trace5(s,v,w,x,y,z)\
+	(printf("@#@%s  %s=%g  %s=%g  %s=%g  %s=%g  %s=%g\n",\
+	s, #v, (double)(v), #w, (double)(w), #x, (double)(x),\
+	#y, (double)(y), #z, (double)(z)))
+
+#endif // __cplusplus
+
 #else
 #define USE(x) (1)?(void)(0):(void)(x)
 #define trace_line()
@@ -116,6 +138,8 @@
 #define trace8(r,s,t,u,v,w,x,y,z) USE(r);USE(s);USE(t);USE(u);USE(v);USE(w);USE(x);USE(y);USE(z)
 #endif
 
+#ifdef __cplusplus
+
 #define unreachable() ( \
     std::cerr << "@@#\n@@@\nunreachable:" \
               << __FILE__ << ":" << __LINE__ << ":" << __func__ << "\n" )
@@ -124,7 +148,20 @@
     std::cerr << "@@#\n@@@\nincomplete:" \
               << __FILE__ << ":" << __LINE__ << ":" << __func__ << "\n" )
 
+#else // no __cplusplus
+
+#define unreachable() (fprintf(stderr,"@@#\n@@@unreachable:%s:%u:%s\n", \
+			   __FILE__, __LINE__, __func__))
+
+#define incomplete() (fprintf(stderr,"@@#\n@@@incomplete:%s:%u:%s\n", \
+			   __FILE__, __LINE__, __func__))
+
+#endif // __cplusplus
+
 #ifdef TRACE_UNTESTED
+
+#ifdef __cplusplus
+
 #define untested() ( std::cerr <<  "@@#\n@@@:"<< __FILE__ << ":"<< __LINE__ \
           <<":" << __func__ << "\n" )
 #define untested1(s,x) ( std::cerr <<  "@@#\n@@@:"<< __FILE__ << ":"<< __LINE__ \
@@ -136,6 +173,14 @@
               <<":" << __func__ << ": "  << s << "  " << #x << "=" << (x) << ", "\
                                                       << #y << "=" << (y) << ", " \
                                                       << #z << "=" << (z) << "\n" )
+
+#else // no __cplusplus
+
+#define untested() (fprintf(stderr,"@@#\n@@@:%s:%u:%s\n", \
+			   __FILE__, __LINE__, __func__))
+
+#endif // __cplusplus
+
 #else
 #define untested()
 #define untested1(s,x)
@@ -143,9 +188,18 @@
 #define untested3(s,x,y,z)
 #endif
 
+#ifdef __cplusplus
+
 #ifdef TRACE_ITESTED
 #define itested() ( std::cerr << "@@#\n@@@:" \
      << __FILE__ << ":" << __LINE__ << ":" << __func__ << "\n" )
+
+#else // no __cplusplus
+
+#define itested() (fprintf(stderr,"@@#\n@@@:%s:%u:%s\n", \
+			   __FILE__, __LINE__, __func__))
+#endif // __cplusplus
+
 #else
 #define itested()
 #endif
-- 
2.11.4.GIT