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capturing self strongly in this block is likely to lead to a retain cycle
...ce: you're not wrong. I interpreted the question to be primarily about the error Xcode presents ("How can I avoid this warning in xcode"), rather than about the actual presence of a retain cycle. You're correct in saying no retain cycle is evident just from the snippet OP provided.
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Relative paths based on file location instead of current working directory [duplicate]
... [[ -L $target || -e $target ]] || { command printf '%s\n' "$FUNCNAME: ERROR: '$target' does not exist." >&2; return 1; }
command cd "$(command dirname -- "$target")" # Change to target dir; necessary for correct resolution of target path.
fname=$(command basename -- "$target"...
Makefile经典教程（入门必备） - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
...值是“src/foo src/bar”。
$(join <list1>,<list2> )
名称：连接函数——join。
功能：把<list2>中的单词对应地加到<list1>的单词后面。如果<list1>的单词个数要比<
list2>的多，那么，<list1>中的多出来的单词将保持原样。如果<list2>...
Find a class somewhere inside dozens of JAR files?
...rom the output of the jar command, for the given class name; this will set ERRORLEVEL to 1 iff there's a match (otherwise 0).
&& echo %G - iff ERRORLEVEL is non-zero, write the Java archive file name to standard output (the console).
Web
Use a search engine that scans JAR files.
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Minimal web server using netcat
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From man for nc, -p description: It is an error to use this option in conjunction with the -l option
– sbeliakov
Nov 24 '16 at 14:59
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Copy a table from one database to another in Postgres
...up, you should use the -a flag to import data only, else you may see weird errors like "Out of memory":
pg_dump -a -t my_table my_db | psql target_db
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Using sed and grep/egrep to search and replace
...tand why though since it makes sense... the -l part of xargs was giving me errors so I took it out, could that be related?
– Ori
Jul 23 '09 at 6:43
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Difference between sh and bash
...to),
#!/bin/bash
will use /bin/bash if it's available (and fail with an error message if it's not). Of course, you can also specify another implementation, e.g.
#!/bin/dash
Which one to use
For my own scripts, I prefer sh for the following reasons:
it is standardized
it is much simpler and ...
How to assert greater than using JUnit Assert?
... greaterThan(Long.parseLong(currentTokenValues[1])));
That gives an error like:
java.lang.AssertionError: timestamp
Expected: a value greater than <456L>
but: <123L> was less than <456L>
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source command not found in sh shell
I have a script that uses sh shell. I get an error in the line that uses the source command. It seems source is not included in my sh shell.
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