annotate Python/hypot.c @ 14914:79cdeeeefafa legacy-trunk

Removed the implib_dir instance variable because it is unused. Removed get_ext_libname() because it is unused. Fixed get_libraries() to append an '_d' to the python debug import library. If MSVC is used, do not add 'pythonxx.lib' to the list of libraries, because this is handled better by a pragma in config.h. This should fix bug #115595, but it needs some more testing.
author Thomas Heller <theller@ctypes.org>
date Thu, 28 Sep 2000 19:28:35 +0000
parents 59f8cedcf049
children 2dea40e40d9d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4176
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
1 /* hypot() replacement */
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
2
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
3 #include "config.h"
13761
59f8cedcf049 merge Include/my*.h into Include/pyport.h
Peter Schneider-Kamp <nowonder@nowonder.de>
parents: 13658
diff changeset
4 #include "pyport.h"
4176
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
5
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 4176
diff changeset
6 double hypot(double x, double y)
4176
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
7 {
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
8 double yx;
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
9
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
10 x = fabs(x);
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
11 y = fabs(y);
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
12 if (x < y) {
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
13 double temp = x;
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
14 x = y;
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
15 y = temp;
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
16 }
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
17 if (x == 0.)
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
18 return 0.;
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
19 else {
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
20 yx = y/x;
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
21 return x*sqrt(1.+yx*yx);
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
22 }
37d009b1bf45 *** empty log message ***
Guido van Rossum <guido@python.org>
parents:
diff changeset
23 }