Remove unnecessary config.h includes

[alexxy/gromacs.git] / src / gromacs / fileio / libxdrf.c

diff --git a/src/gromacs/fileio/libxdrf.c b/src/gromacs/fileio/libxdrf.c
index 758c348ed6b9817331f7242cd380a69bc823c02c..98957275c014e2dd401ed5f8a54168f262951832 100644 (file)
--- a/src/gromacs/fileio/libxdrf.c
+++ b/src/gromacs/fileio/libxdrf.c
@@ -34,9 +34,7 @@
  * To help us fund GROMACS development, we humbly ask that you cite
  * the research papers on the package. Check out http://www.gromacs.org.
  */
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
+#include "gmxpre.h"
 
 #include <limits.h>
 #include <math.h>
@@ -1345,7 +1343,6 @@ xdr_xtc_estimate_dt(FILE *fp, XDR *xdrs, int natoms, gmx_bool * bOK)
     return res;
 }
 
-
 int
 xdr_xtc_seek_frame(int frame, FILE *fp, XDR *xdrs, int natoms)
 {
@@ -1383,7 +1380,7 @@ xdr_xtc_seek_frame(int frame, FILE *fp, XDR *xdrs, int natoms)
         {
             return -1;
         }
-        if (fr != frame && abs(low-high) > header_size)
+        if (fr != frame && llabs(low-high) > header_size)
         {
             if (fr < frame)
             {
@@ -1444,7 +1441,7 @@ int xdr_xtc_seek_time(real time, FILE *fp, XDR *xdrs, int natoms, gmx_bool bSeek
 
     if (bSeekForwardOnly)
     {
-        low = gmx_ftell(fp);
+        low = gmx_ftell(fp)-header_size;
     }
     if (gmx_fseek(fp, 0, SEEK_END))
     {
@@ -1517,10 +1514,9 @@ int xdr_xtc_seek_time(real time, FILE *fp, XDR *xdrs, int natoms, gmx_bool bSeek
            the current time and the target time is bigger than dt and above all the distance between high
            and low is bigger than 1 frame, then do another step of binary search. Otherwise stop and check
            if we reached the solution */
-        if ((((t < time && dt_sign >= 0) || (t > time && dt_sign == -1)) || ((t
-                                                                              - time) >= dt && dt_sign >= 0)
-             || ((time - t) >= -dt && dt_sign < 0)) && (abs(low - high)
-                                                        > header_size))
+        if ((((t < time && dt_sign >= 0) || (t > time && dt_sign == -1)) ||
+             ((t - time) >= dt && dt_sign >= 0) || ((time - t) >= -dt && dt_sign < 0)) &&
+            (llabs(low - high) > header_size))
         {
             if (dt >= 0 && dt_sign != -1)
             {
@@ -1558,7 +1554,7 @@ int xdr_xtc_seek_time(real time, FILE *fp, XDR *xdrs, int natoms, gmx_bool bSeek
         }
         else
         {
-            if (abs(low - high) <= header_size)
+            if (llabs(low - high) <= header_size)
             {
                 break;
             }