X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=moebius2.git;a=blobdiff_plain;f=common.h;h=6414303ad755c8234366e5990e450441f2b2dbd7;hp=7e0e86d7622da0698d992bdf94af0dfef3e4676e;hb=7f93208fa022d3c9f925f48e5469793bc3612b61;hpb=f1dc8f4f3623b15deddba8db85d181a0e1011c9e

diff --git a/common.h b/common.h
index 7e0e86d..6414303 100644
--- a/common.h
+++ b/common.h
@@ -8,6 +8,12 @@
 #ifndef _GNU_SOURCE
 #define _GNU_SOURCE
 #endif
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 1000
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
 
 #include <math.h>
 #include <float.h>
@@ -18,11 +24,13 @@
 #include <errno.h>
 #include <string.h>
 #include <unistd.h>
+#include <stdint.h>
 
 #include <gsl/gsl_vector.h>
 #include <gsl/gsl_matrix.h>
 #include <gsl/gsl_blas.h>
 #include <gsl/gsl_linalg.h>
+#include <gsl/gsl_interp.h>
 
 #define D3 3
 
@@ -31,11 +39,16 @@ double hypotD2(const double p[D3], const double q[D3]);
 double hypotD2plus(const double p[D3], const double q[D3], double add);
 
 double magnD(const double pq[D3]);
+double magnD2(const double pq[D3]);
 void xprod(double r[D3], const double a[D3], const double b[D3]);
 double dotprod(const double a[D3], const double b[D3]);
+void xprod_norm(double r[D3], const double a[D3], const double b[D3],
+		double one, double absepsilon);
+void normalise(double v[D3], double one, double absepsilon);
 
 void flushoutput(void);
 void diee(const char *what);
+void fail(const char *emsg);
 
 void libdie(const char *lib, int l, const char *str);
 #define XA(w) ((w) ? (void)0 : libdie("X", __LINE__, #w))