aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/libf2c/pow_ri.c
diff options
context:
space:
mode:
authorshmel1k <shmel1k@ydb.tech>2022-09-02 12:44:59 +0300
committershmel1k <shmel1k@ydb.tech>2022-09-02 12:44:59 +0300
commit90d450f74722da7859d6f510a869f6c6908fd12f (patch)
tree538c718dedc76cdfe37ad6d01ff250dd930d9278 /contrib/libs/libf2c/pow_ri.c
parent01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff)
downloadydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/libf2c/pow_ri.c')
-rw-r--r--contrib/libs/libf2c/pow_ri.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/contrib/libs/libf2c/pow_ri.c b/contrib/libs/libf2c/pow_ri.c
new file mode 100644
index 0000000000..e29d416eba
--- /dev/null
+++ b/contrib/libs/libf2c/pow_ri.c
@@ -0,0 +1,41 @@
+#include "f2c.h"
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef KR_headers
+double pow_ri(ap, bp) real *ap; integer *bp;
+#else
+double pow_ri(real *ap, integer *bp)
+#endif
+{
+double pow, x;
+integer n;
+unsigned long u;
+
+pow = 1;
+x = *ap;
+n = *bp;
+
+if(n != 0)
+ {
+ if(n < 0)
+ {
+ n = -n;
+ x = 1/x;
+ }
+ for(u = n; ; )
+ {
+ if(u & 01)
+ pow *= x;
+ if(u >>= 1)
+ x *= x;
+ else
+ break;
+ }
+ }
+return(pow);
+}
+#ifdef __cplusplus
+}
+#endif