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Save An Image To Application Documents Folder From UIView On IOS
...reate folder
NSString *imageName = [NSString stringWithFormat:@"%@/img_%@.png", dataPath, [self getRandomNumber]] ;
// save the file
if ([[NSFileManager defaultManager] fileExistsAtPath:imageName]) {
// delete if exist
[[NSFileManager defaultManager] removeItemAtPath:ima...
MySQL Cannot Add Foreign Key Constraint
...s to be an INT, not a SMALLINT.
Also, you should run the query set foreign_key_checks=0 before running the DDL so you can create the tables in an arbitrary order rather than needing to create all parent tables before the relevant child tables.
...
ValueError: invalid literal for int() with base 10: ''
...ame)
for line in h:
if line.strip():
[int(next(h).strip()) for _ in range(4)] # list of integers
This way it processes 5 lines at the time. Use h.next() instead of next(h) prior to Python 2.6.
The reason you had ValueError is because int cannot convert an empty string to the integ...
How to merge a transparent png image with another image using PIL
...
The secret sauce was tasty
– AFP_555
Apr 15 '18 at 0:06
4
@DenizOzger To fix...
Total size of the contents of all the files in a directory [closed]
... the size the directory takes up on the disk.
– anton_rh
Sep 24 '18 at 11:59
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How to get started on TDD with Ruby on Rails? [closed]
...ink contacts to companies.
class CompanyTest <Test::Unit
def test_relationship # test associations/relationships
c = companies(:some_company)
assert_equal [a list of contacts], c.contacts # make sure a company can have multiple contacts
end
end
class ContactTest<Tes...
How would Git handle a SHA-1 collision on a blob?
... git-2.7.0~rc0+next.20151210/block-sha1/sha1.c
@@ -246,6 +246,8 @@ void blk_SHA1_Final(unsigned char hashou
blk_SHA1_Update(ctx, padlen, 8);
/* Output hash */
- for (i = 0; i < 5; i++)
- put_be32(hashout + i * 4, ctx->H[i]);
+ for (i = 0; i < 1; i++)
+ put_be32(hash...
Fastest way to implode an associative array with keys
...
You can use http_build_query() to do that.
Generates a URL-encoded query string from the associative (or indexed) array provided.
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...
“/usr/bin/ld: cannot find -lz”
...-dev provides libz-dev, which includes the shared library file /usr/lib/x86_64-linux-gnu/libz.a, and the C Header files /usr/include/zconf.h & /usr/include/zlib.h. You can view the package contents with: dpkg -L zlib1g-dev, which shows all the files it contains.
– Trinitro...
Adding Only Untracked Files
...command:
git ls-files -o --exclude-standard | select | foreach { git add $_ }
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