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Multidimensional Array [][] vs [,] [duplicate]
What's their difference? (1) yields an error, what's the reason?
5 Answers
5
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Write to .txt file?
...txt", "w");
if (f == NULL)
{
printf("Error opening file!\n");
exit(1);
}
/* print some text */
const char *text = "Write this to the file";
fprintf(f, "Some text: %s\n", text);
/* print integers and floats */
int i = 1;
float py = 3.1415927;
fprintf(f, "Integer: %d, float: %f\n", i, py);
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How to get a list of properties with a given attribute?
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answered Feb 17 '10 at 16:09
Marc Gravell♦Marc Gravell
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PowerShell script to return versions of .NET Framework on a machine?
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16 Answers
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How to make gradient background in android
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61
You can create this 'half-gradient' look by using an xml Layer-List to combine the top and botto...
Getting an empty JQuery object
...ates an empty jQuery-object:
$([])
Update:
In newer versions of jQuery (1.4+), you can use:
$()
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How do I get user IP address in django?
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11 Answers
11
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How to sort with a lambda?
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165
Got it.
sort(mMyClassVector.begin(), mMyClassVector.end(),
[](const MyClass & a, con...
How to use the 'sweep' function
...nd use in the operation defined by FUN.
For instance, if you want to add 1 to the 1st row, 2 to the 2nd, etc. of the matrix you defined, you will do:
sweep (M, 1, c(1: 4), "+")
I frankly did not understand the definition in the R documentation either, I just learned by looking up examples.
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printf() formatting for hex
...unt against your "8" characters listed in the 08 part. You need to ask for 10 characters if you want it to be the same.
int i = 7;
printf("%#010x\n", i); // gives 0x00000007
printf("0x%08x\n", i); // gives 0x00000007
printf("%#08x\n", i); // gives 0x000007
Also changing the case of x, affect...