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Convert a character digit to the corresponding integer in C
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153
As per other replies, this is fine:
char c = '5';
int x = c - '0';
Also, for error checking, ...
How to concatenate strings of a string field in a PostgreSQL 'group by' query?
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553
PostgreSQL 9.0 or later:
Recent versions of Postgres (since late 2010) have the string_agg(expr...
How does `is_base_of` work?
...ted to D* and B*. It's a user defined conversion sequence as described by 13.3.3.1.2 from Host<B, D> to D* and B* respectively. For finding conversion functions that can convert the class, the following candidate functions are synthesized for the first check function according to 13.3.1.5/1
D...
Convert between UIImage and Base64 string
...e64, options: NSDataBase64DecodingOptions.IgnoreUnknownCharacters)!
Swift 3.0 > Decoding
let dataDecoded : Data = Data(base64Encoded: strBase64, options: .ignoreUnknownCharacters)!
Encoding :
let strBase64 = imageData.base64EncodedString(options: .lineLength64Characters)
print(strBase64)
Decod...
PHP substring extraction. Get the string before the first '/' or the whole string
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3
+1 Thanks for the answer. It worked :) But one question. I am only able to do this -> $arr = explode('/',$mystring,2); echo $arr[0];. I a...
Spring MVC: How to return image in @ResponseBody?
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if you are using Spring version of 3.1 or newer you can specify "produces" in @RequestMapping annotation. Example below works for me out of box. No need of register converter or anything else if you have web mvc enabled (@EnableWebMvc).
@ResponseBody
@Request...
How to assert greater than using JUnit Assert?
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153
Just how you've done it. assertTrue(boolean) also has an overload assertTrue(String, boolean) wh...
How to exit from the application and show the home screen?
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327
Android's design does not favor exiting an application by choice, but rather manages it by the...
Mime type for WOFF fonts?
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743
Update from Keith Shaw's comment on Jun 22, 2017:
As of February 2017, RFC8081 is the propos...