core/random: Convert to C

And convert the unit test while we're at it.

Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>

core/queue.cpp

@@ -2,7 +2,9 @@
  * Copyright 2013 (c) Anna Schumaker.
  */
 #include <core/queue.h>
+extern "C" {
 #include <core/random.h>
+}
 #include <core/string.h>
 
 #include <algorithm>

core/random.c

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright 2014 (c) Anna Schumaker
  */
 #ifdef CONFIG_TESTING

include/core/random.h

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright 2014 (c) Anna Schumaker
  */
 #ifndef OCARINA_CORE_RANDOM_H
@@ -18,23 +18,14 @@ static inline unsigned int _pick_random() { return rand(); }
 #endif /* CONFIG_TESTING */
 
 
-/**
- * Seed the random number generator.
- *
- * @param  n  Value used to initialize the RNG
- */
+
+/* Seed the random number generator. */
 static inline void random_seed(unsigned int n)
 {
 	_seed_random(n);
 }
 
-/**
- * Get a random number in the specified range.
- *
- * @param  min  Minimum value that will be returned.
- * @param  max  Maximum value that will be returned.
- * @return A random value where min <= value <= max.
- */
+/*  Returns a random number X, where min <= value <= max. */
 static inline unsigned int random_range(unsigned int min, unsigned int max)
 {
 	if (min >= max)
@@ -42,5 +33,4 @@ static inline unsigned int random_range(unsigned int min, unsigned int max)
 	return min + (_pick_random() % (max - min));
 }
 
-
 #endif /* OCARINA_CORE_RANDOM_H */

tests/core/Sconscript

@@ -15,7 +15,7 @@ Export("core_objs")
 
 res  = [ CoreTest("version",  "version.c")    ]
 res += [ CoreTest("string",   "string.c")     ]
-res += [ CoreTest("random",   "random.cpp")   ]
+res += [ CoreTest("random",   "random.c")     ]
 res += [ CoreTest("file",     "file.cpp")     ]
 res += [ CoreTest("database", "database.cpp") ]
 res += [ CoreTest("index",    "index.cpp")    ]

tests/core/queue.cpp

@@ -2,7 +2,9 @@
  * Copyright 2014 (c) Anna Schumaker.
  */
 #include <core/queue.h>
+extern "C" {
 #include <core/random.h>
+}
 #include <core/tags/tags.h>
 #include "test.h"
 

tests/core/random.c

@@ -3,7 +3,7 @@
  */
 #include <core/random.h>
 #include <core/string.h>
-#include "test.h"
+#include <tests/test.h>
 
 
 static void test_rng(unsigned int seed)