summaryrefslogtreecommitdiff
path: root/gnu/egcs/libf2c/libI77/ftell_.c
diff options
context:
space:
mode:
Diffstat (limited to 'gnu/egcs/libf2c/libI77/ftell_.c')
-rw-r--r--gnu/egcs/libf2c/libI77/ftell_.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/gnu/egcs/libf2c/libI77/ftell_.c b/gnu/egcs/libf2c/libI77/ftell_.c
new file mode 100644
index 00000000000..1bd03be325a
--- /dev/null
+++ b/gnu/egcs/libf2c/libI77/ftell_.c
@@ -0,0 +1,46 @@
+#include "f2c.h"
+#include "fio.h"
+
+ static FILE *
+#ifdef KR_headers
+unit_chk(Unit, who) integer Unit; char *who;
+#else
+unit_chk(integer Unit, char *who)
+#endif
+{
+ if (Unit >= MXUNIT || Unit < 0)
+ f__fatal(101, who);
+ return f__units[Unit].ufd;
+ }
+
+ integer
+#ifdef KR_headers
+G77_ftell_0 (Unit) integer *Unit;
+#else
+G77_ftell_0 (integer *Unit)
+#endif
+{
+ FILE *f;
+ return (f = unit_chk(*Unit, "ftell")) ? ftell(f) : -1L;
+ }
+
+ integer
+#ifdef KR_headers
+G77_fseek_0 (Unit, offset, xwhence) integer *Unit, *offset, *xwhence;
+#else
+G77_fseek_0 (integer *Unit, integer *offset, integer *xwhence)
+#endif
+{
+ FILE *f;
+ int w = (int)*xwhence;
+#ifdef SEEK_SET
+ static int wohin[3] = { SEEK_SET, SEEK_CUR, SEEK_END };
+#endif
+ if (w < 0 || w > 2)
+ w = 0;
+#ifdef SEEK_SET
+ w = wohin[w];
+#endif
+ return !(f = unit_chk(*Unit, "fseek"))
+ || fseek(f, *offset, w) ? 1 : 0;
+ }