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authorGuido van Rossum <guido@python.org>1997-03-14 04:23:42 (GMT)
committerGuido van Rossum <guido@python.org>1997-03-14 04:23:42 (GMT)
commit1f06beeeddea2abefe6ab10ced35d7c4186f9940 (patch)
tree36c12af33edfa013494140817ee98b357c920f36 /Include/pyfpe.h
parentefd3a3a843b15c05696ba4ac8c23b00d9d9a24ce (diff)
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Change PyFPE_END_PROTECT to PyFPE_END_PROTECT(v). v should be the
last variable to which a floating point expression is assigned. The macro passes its address to a dummy function so that the optimizer can't delay calculating its value until after the macro.
Diffstat (limited to 'Include/pyfpe.h')
-rw-r--r--Include/pyfpe.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/Include/pyfpe.h b/Include/pyfpe.h
index ef44e66..b2d8fee 100644
--- a/Include/pyfpe.h
+++ b/Include/pyfpe.h
@@ -131,7 +131,7 @@ extern "C" {
#include <math.h>
extern jmp_buf PyFPE_jbuf;
extern int PyFPE_counter;
-extern double PyFPE_dummy(void);
+extern double PyFPE_dummy();
#define PyFPE_START_PROTECT(err_string, leave_stmt) \
if (!PyFPE_counter++ && setjmp(PyFPE_jbuf)) { \
@@ -149,12 +149,12 @@ if (!PyFPE_counter++ && setjmp(PyFPE_jbuf)) { \
* which counts down PyFPE_counter, and thereby monkey wrench the overeager
* optimizer. Better solutions are welcomed....
*/
-#define PyFPE_END_PROTECT PyFPE_counter -= (int)PyFPE_dummy();
+#define PyFPE_END_PROTECT(v) PyFPE_counter -= (int)PyFPE_dummy(&(v));
#else
#define PyFPE_START_PROTECT(err_string, leave_stmt)
-#define PyFPE_END_PROTECT
+#define PyFPE_END_PROTECT(v)
#endif