X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=src%2Flibpspp%2Fmisc.h;h=c2f865d90c95512d7ec4d3517c68dff96e0181d4;hb=20af4ead4d4c440c5bc269274cd5a87fa9e7056d;hp=e33d588fd8c0db6ca722278eb3c77260a6081d82;hpb=a9afcdd223cc1c1b7889601e405cff0bd47300d7;p=pspp

diff --git a/src/libpspp/misc.h b/src/libpspp/misc.h
index e33d588fd8..c2f865d90c 100644
--- a/src/libpspp/misc.h
+++ b/src/libpspp/misc.h
@@ -14,8 +14,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
-#if !math_misc_h
-#define math_misc_h 1
+#if !libpspp_misc_h
+#define libpspp_misc_h 1
 
 #include <float.h>
 #include <math.h>
@@ -60,4 +60,40 @@ pow4 (double x)
   return y;
 }
 
-#endif /* math/misc.h */
+/* Set *DEST to the lower of *DEST and SRC */
+static inline void
+minimize (double *dest, double src)
+{
+  if (src < *dest)
+    *dest = src;
+}
+
+
+/* Set *DEST to the greater of *DEST and SRC */
+static inline void
+maximize (double *dest, double src)
+{
+  if (src > *dest)
+    *dest = src;
+}
+
+
+/* Set *DEST to the lower of *DEST and SRC */
+static inline void
+minimize_int (int *dest, int src)
+{
+  if (src < *dest)
+    *dest = src;
+}
+
+
+/* Set *DEST to the greater of *DEST and SRC */
+static inline void
+maximize_int (int *dest, int src)
+{
+  if (src > *dest)
+    *dest = src;
+}
+
+
+#endif /* libpspp/misc.h */