add pqm4

src/pqm4/sqisign_lvl1/ref/tools.h

@@ -0,0 +1,49 @@
+
+#ifndef TOOLS_H
+#define TOOLS_H
+
+#include <time.h>
+
+// Debug printing:
+// https://stackoverflow.com/questions/1644868/define-macro-for-debug-printing-in-c
+#ifndef NDEBUG
+#define DEBUG_PRINT 1
+#else
+#define DEBUG_PRINT 0
+#endif
+
+#ifndef __FILE_NAME__
+#define __FILE_NAME__ "NA"
+#endif
+
+#ifndef __LINE__
+#define __LINE__ 0
+#endif
+
+#ifndef __func__
+#define __func__ "NA"
+#endif
+
+#define debug_print(fmt)                                                                           \
+    do {                                                                                           \
+        if (DEBUG_PRINT)                                                                           \
+            printf("warning: %s, file %s, line %d, function %s().\n",                              \
+                   fmt,                                                                            \
+                   __FILE_NAME__,                                                                  \
+                   __LINE__,                                                                       \
+                   __func__);                                                                      \
+    } while (0)
+
+
+clock_t tic(void);
+float tac(void);                             /* time in ms since last tic */
+float TAC(const char *str);                  /* same, but prints it with label 'str' */
+float toc(const clock_t t);                  /* time in ms since t */
+float TOC(const clock_t t, const char *str); /* same, but prints it with label 'str' */
+float TOC_clock(const clock_t t, const char *str);
+
+clock_t dclock(const clock_t t); // return the clock cycle diff between now and t
+float clock_to_time(const clock_t t,
+                    const char *str); // convert the number of clock cycles t to time
+float clock_print(const clock_t t, const char *str);
+#endif