Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
C
cpython
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
Analytics
Analytics
Repository
Value Stream
Wiki
Wiki
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Commits
Issue Boards
Open sidebar
Kirill Smelkov
cpython
Commits
918aa894
Commit
918aa894
authored
Sep 19, 2016
by
Benjamin Peterson
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
remove trailing whitespace
parent
647680ec
Changes
3
Hide whitespace changes
Inline
Side-by-side
Showing
3 changed files
with
20 additions
and
20 deletions
+20
-20
Include/pyfpe.h
Include/pyfpe.h
+18
-18
Include/pyport.h
Include/pyport.h
+1
-1
Misc/coverity_model.c
Misc/coverity_model.c
+1
-1
No files found.
Include/pyfpe.h
View file @
918aa894
...
...
@@ -45,10 +45,10 @@ extern "C" {
* Define macros for handling SIGFPE.
* Lee Busby, LLNL, November, 1996
* busby1@llnl.gov
*
*
*********************************************
* Overview of the system for handling SIGFPE:
*
*
* This file (Include/pyfpe.h) defines a couple of "wrapper" macros for
* insertion into your Python C code of choice. Their proper use is
* discussed below. The file Python/pyfpe.c defines a pair of global
...
...
@@ -59,33 +59,33 @@ extern "C" {
* named fpectl. This module is standard in every respect. It can be loaded
* either statically or dynamically as you choose, and like any other
* Python module, has no effect until you import it.
*
*
* In the general case, there are three steps toward handling SIGFPE in any
* Python code:
*
*
* 1) Add the *_PROTECT macros to your C code as required to protect
* dangerous floating point sections.
*
*
* 2) Turn on the inclusion of the code by adding the ``--with-fpectl''
* flag at the time you run configure. If the fpectl or other modules
* which use the *_PROTECT macros are to be dynamically loaded, be
* sure they are compiled with WANT_SIGFPE_HANDLER defined.
*
*
* 3) When python is built and running, import fpectl, and execute
* fpectl.turnon_sigfpe(). This sets up the signal handler and enables
* generation of SIGFPE whenever an exception occurs. From this point
* on, any properly trapped SIGFPE should result in the Python
* FloatingPointError exception.
*
*
* Step 1 has been done already for the Python kernel code, and should be
* done soon for the NumPy array package. Step 2 is usually done once at
* python install time. Python's behavior with respect to SIGFPE is not
* changed unless you also do step 3. Thus you can control this new
* facility at compile time, or run time, or both.
*
********************************
*
********************************
* Using the macros in your code:
*
*
* static PyObject *foobar(PyObject *self,PyObject *args)
* {
* ....
...
...
@@ -94,17 +94,17 @@ extern "C" {
* PyFPE_END_PROTECT(result)
* ....
* }
*
*
* If a floating point error occurs in dangerous_op, foobar returns 0 (NULL),
* after setting the associated value of the FloatingPointError exception to
* "Error in foobar". ``Dangerous_op'' can be a single operation, or a block
* of code, function calls, or any combination, so long as no alternate
* return is possible before the PyFPE_END_PROTECT macro is reached.
*
*
* The macros can only be used in a function context where an error return
* can be recognized as signaling a Python exception. (Generally, most
* functions that return a PyObject * will qualify.)
*
*
* Guido's original design suggestion for PyFPE_START_PROTECT and
* PyFPE_END_PROTECT had them open and close a local block, with a locally
* defined jmp_buf and jmp_buf pointer. This would allow recursive nesting
...
...
@@ -112,17 +112,17 @@ extern "C" {
* variables need to be declared with the "volatile" type qualifier to keep
* setjmp from corrupting their values. Some current implementations seem
* to be more restrictive. For example, the HPUX man page for setjmp says
*
*
* Upon the return from a setjmp() call caused by a longjmp(), the
* values of any non-static local variables belonging to the routine
* from which setjmp() was called are undefined. Code which depends on
* such values is not guaranteed to be portable.
*
*
* I therefore decided on a more limited form of nesting, using a counter
* variable (PyFPE_counter) to keep track of any recursion. If an exception
* occurs in an ``inner'' pair of macros, the return will apparently
* come from the outermost level.
*
*
*/
#ifdef WANT_SIGFPE_HANDLER
...
...
@@ -146,14 +146,14 @@ if (!PyFPE_counter++ && setjmp(PyFPE_jbuf)) { \
* this statement so that it gets executed *before* the unsafe expression
* which we're trying to protect. That pretty well messes things up,
* of course.
*
*
* If the expression(s) you're trying to protect don't happen to return a
* value, you will need to manufacture a dummy result just to preserve the
* correct ordering of statements. Note that the macro passes the address
* of its argument (so you need to give it something which is addressable).
* If your expression returns multiple results, pass the last such result
* to PyFPE_END_PROTECT.
*
*
* Note that PyFPE_dummy returns a double, which is cast to int.
* This seeming insanity is to tickle the Floating Point Unit (FPU).
* If an exception has occurred in a preceding floating point operation,
...
...
Include/pyport.h
View file @
918aa894
...
...
@@ -886,7 +886,7 @@ extern pid_t forkpty(int *, char *, struct termios *, struct winsize *);
#define PY_LITTLE_ENDIAN 1
#endif
#ifdef Py_BUILD_CORE
#ifdef Py_BUILD_CORE
/*
* Macros to protect CRT calls against instant termination when passed an
* invalid parameter (issue23524).
...
...
Misc/coverity_model.c
View file @
918aa894
...
...
@@ -140,7 +140,7 @@ static PyObject *
build_struct_time
(
int
y
,
int
m
,
int
d
,
int
hh
,
int
mm
,
int
ss
,
int
dstflag
)
{
PyObject
*
result
;
__coverity_tainted_data_sanitize__
(
y
);
__coverity_tainted_data_sanitize__
(
m
);
__coverity_tainted_data_sanitize__
(
d
);
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment