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Comma in C/C++ macro
...e angle brackets like it does within parentheses. (This is also a problem for square brackets and braces, even though those usually occur as balanced pairs.) You can enclose the macro argument in parentheses:
FOO((std::map<int, int>), map_var);
The problem is then that the parameter remai...
Disable assertions in Python
... process, the environment, or a single line of code.
I demonstrate each.
For the whole process
Using the -O flag (capital O) disables all assert statements in a process.
For example:
$ python -Oc "assert False"
$ python -c "assert False"
Traceback (most recent call last):
File "<string>...
How to check if the string is empty?
...u should use myString == "". See the documentation on Truth Value Testing for other values that are false in Boolean contexts.
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Is there a way to crack the password on an Excel VBA Project?
...y this direct VBA approach which doesn't require HEX editing. It will work for any files (*.xls, *.xlsm, *.xlam ...).
Tested and works on:
Excel 2007
Excel 2010
Excel 2013 - 32 bit version
Excel 2016 - 32 bit version
Looking for 64 bit version? See this answer
How it works
I...
Recommendations of Python REST (web services) framework? [closed]
...ist somewhere of recommendations of different Python-based REST frameworks for use on the serverside to write your own RESTful APIs? Preferably with pros and cons.
...
Why doesn't list have safe “get” method like dictionary?
...hat a valid list index is, but there's no particularly good way to do this for key values in a dictionary.
– Nick Bastin
Feb 26 '11 at 7:35
10
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undefined reference to `__android_log_print'
... its adding an android library to the make file - and it worked for me too
– gheese
Apr 24 '13 at 15:08
9
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Why can't (or doesn't) the compiler optimize a predictable addition loop into a multiplication?
...
The compiler can't generally transform
for (int c = 0; c < arraySize; ++c)
if (data[c] >= 128)
for (int i = 0; i < 100000; ++i)
sum += data[c];
into
for (int c = 0; c < arraySize; ++c)
if (data[c] >= 128)
...
Python Requests and persistent sessions
... 0.10.0 with Python 2.5).
I have figured out how to submit data to a login form on a website and retrieve the session key, but I can't see an obvious way to use this session key in subsequent requests.
Can someone fill in the ellipsis in the code below or suggest another approach?
...
How do you create nested dict in Python?
...omething like the following:
d = {} # can use defaultdict(dict) instead
for row in file_map:
# derive row key from something
# when using defaultdict, we can skip the next step creating a dictionary on row_key
d[row_key] = {}
for idx, col in enumerate(row):
d[row_key][id...