Release for liblbfgs 1.6.

git-svn-id: file:///home/svnrepos/software/liblbfgs/trunk@25 ecf4c44f-38d1-4fa4-9757-a0b4dd0349fc

sample/sample.c

@@ -49,6 +49,7 @@ int main(int argc, char *argv)
     int i, ret = 0;
     lbfgsfloatval_t fx;
     lbfgsfloatval_t *x = lbfgs_malloc(N);
+    lbfgs_parameter_t param;
 
     if (x == NULL) {
         printf("ERROR: Failed to allocate a memory block for variables.\n");
@@ -61,11 +62,15 @@ int main(int argc, char *argv)
         x[i+1] = 1.0;
     }
 
+    /* Initialize the parameters for the L-BFGS optimization. */
+    lbfgs_parameter_init(&param);
+    /* param.linesearch = LBFGS_LINESEARCH_BACKTRACKING; */
+
     /*
         Start the L-BFGS optimization; this will invoke the callback functions
         evaluate() and progress() when necessary.
      */
-    ret = lbfgs(N, x, &fx, evaluate, progress, NULL, NULL);
+    ret = lbfgs(N, x, &fx, evaluate, progress, NULL, &param);
 
     /* Report the result. */
     printf("L-BFGS optimization terminated with status code = %d\n", ret);