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Casting a variable using a Type variable
...andling an actual type. With proper interfaces that shouldn't be necessary 99.9% of the times. There are perhaps a few edge cases when it comes to reflection that it might make sense, but I would recommend to avoid those cases.
Edit 2:
Few extra tips:
Try to keep your code as type-safe as possib...
Why are C# 3.0 object initializer constructor parentheses optional?
...pose we wanted to add a new prefix operator to C# called "frob":
x = frob 123 + 456;
(UPDATE: frob is of course await; the analysis here is essentially the analysis that the design team went through when adding await.)
"frob" here is like "new" or "++" - it comes before an expression of some sor...
What is your favorite C programming trick? [closed]
...
C99 offers some really cool stuff using anonymous arrays:
Removing pointless variables
{
int yes=1;
setsockopt(yourSocket, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int));
}
becomes
setsockopt(yourSocket, SOL_SOC...
在 App Inventor 2 中使用图像 · App Inventor 2 中文网
... 隐私策略和使用条款 技术支持 service@fun123.cn
#define macro for debug printing in C?
...
If you use a C99 or later compiler
#define debug_print(fmt, ...) \
do { if (DEBUG) fprintf(stderr, fmt, __VA_ARGS__); } while (0)
It assumes you are using C99 (the variable argument list notation is not supported in earlier ...
SQL to find the number of distinct values in a column
...
Paul JamesPaul James
1,81311 gold badge99 silver badges22 bronze badges
60
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Difference between a Structure and a Union
...
union foo x;
x.a = 3;
x.b = 'c';
printf("%i, %i\n", x.a, x.b);
prints
99, 99
Why are the two values the same? Because the last 3 bytes of the int 3 are all zero, so it's also read as 99. If we put in a larger number for x.a, you'll see that this is not always the case:
union foo x;
x.a = 387...
How can I get a count of the total number of digits in a number?
...ast to double) causes a computation error when the input value is exactly -999999999999999999: the LOG10 method returns 20 instead of 19. The LOG10 method also must have a if guard for the case when the input value is zero.
The LOG10 method is quite tricky to get working for all values, which means...
What's the difference between “mod” and “remainder”?
...1, or -3 with remainder 1, the implementation just had to document which. C99 removed the flexibility, so now -5 / 2 is always -2.
– Steve Jessop
Dec 3 '12 at 13:23
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DataTable: Hide the Show Entries dropdown but keep the Search box
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Peter Hall
30.5k99 gold badges6565 silver badges128128 bronze badges
answered Jun 27 '17 at 11:06
NivNiv
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