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How do I spool to a CSV formatted file using SQLPLUS?
...n the primary inner subquery, but aliasing all the columns as col1, col2...etc. is required there.
– Amit Naidu
May 8 '18 at 22:33
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curl: (60) SSL certificate problem: unable to get local issuer certificate
...e certificate.
Add the root CA (the CA signing the server certificate) to /etc/ssl/certs/ca-certificates.crt
You should use option 2 as it's the option that ensures that you are connecting to secure FTP server.
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When and why will a compiler initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete?
... In todays world, Data Execution Prevention doesn't even allow the CPU to fetch an instruction from the heap. This answer is outdated since XP SP2.
– MSalters
Apr 5 '17 at 8:27
2
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What does multicore assembly language look like?
...ng "load the EDX register with the value 5", "increment the EDX" register, etc.
10 Answers
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Linux C++ 单元测试与gcov代码覆盖率统计 - C/C++ - 清泛网 - 专注C/C++及内核技术
...cpp.gcov
lcov --rc lcov_branch_coverage=1 -c -d . -o demo_lcov_report
#all
#genhtml --rc genhtml_branch_coverage=1 demo_lcov_report -o out_report
#filter
lcov --rc lcov_branch_coverage=1 -r demo_lcov_report '/usr/include/*' '*lib/*' -o filtered_coverage
genhtml --rc genhtml_branch_coverage=1...
Extracting bits with a single multiplication
...bits that meet the (n-m) criterion, but also the ones that are at (n-m+1), etc. Let's call their number Q0 (exactly n-m to next bit), Q1 (n-m+1), up to Q(N-1) (n-1). Then we risk carry if
Q0 > 1
Q0 == 1 && Q1 >= 2
Q0 == 0 && Q1 >= 4
Q0 == 1 && Q1 > 1 && Q...
In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
...m
def reader():
"""A generator that fakes a read from a file, socket, etc."""
for i in range(4):
yield '<< %s' % i
def reader_wrapper(g):
# Manually iterate over data produced by reader
for v in g:
yield v
wrap = reader_wrapper(reader())
for i in wrap:
pr...
How to find memory leak in a C++ code/project?
..._ptr will not work with standard containers such as std::vector, std::list etc. See this : stackoverflow.com/questions/111478/…
– Nawaz
Jun 7 '11 at 6:32
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Where to get “UTF-8” string literal in Java?
... a Charsets class with static fields like Charsets.UTF_8, Charsets.UTF_16, etc.
Since Java 7 you should just use java.nio.charset.StandardCharsets instead for comparable constants.
Note that these constants aren't strings, they're actual Charset instances. All standard APIs that take a charset nam...
Converting a string to a date in JavaScript
...parts[1]); JavaScript counts months from 0:
// January - 0, February - 1, etc.
var mydate = new Date(parts[0], parts[1] - 1, parts[2]);
console.log(mydate.toDateString());
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