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Can gcc output C code after preprocessing?
...padimipadi
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14
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Duplicate symbols for architecture x86_64 under Xcode
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75 duplicate symbols for architecture x86_64
Means that you have loaded same functions twice.
As the issue disappear after removing -ObjC from Other Linker Flags,
this means that this option result that functions loads twice:
from Technical Q&A
This fla...
JS - get image width and height from the base64 code
I have a base64 img encoded that you can find here . How can I get the height and the width of it?
4 Answers
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How to encrypt String in Java
...you get the key. That simple!
Pointed out by Moussa
I am using Sun's Base64Encoder/Decoder which is to be found in Sun's JRE, to avoid yet another JAR in lib. That's dangerous from point of using OpenJDK or some other's JRE. Besides that, is there another reason I should consider using Apache comm...
Python: print a generator expression?
...; (x*x for x in range(10))
<generator object <genexpr> at 0xb7485464>
This is sometimes called a generator comprehension, although I think the official name still is generator expression, there isn't really any difference, the parenthesis are only there to make the syntax valid. You do...
Generate a heatmap in MatPlotLib using a scatter data set
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x = np.random.randn(1000)
y = np.random.randn(1000)
sigmas = [0, 16, 32, 64]
for ax, s in zip(axs.flatten(), sigmas):
if s == 0:
ax.plot(x, y, 'k.', markersize=5)
ax.set_title("Scatter plot")
else:
img, extent = myplot(x, y, s)
ax.imshow(img, extent=extent,...
Default function arguments in Rust
..."arguments" struct and the From/Into traits:
pub struct FooArgs {
a: f64,
b: i32,
}
impl Default for FooArgs {
fn default() -> Self {
FooArgs { a: 1.0, b: 1 }
}
}
impl From<()> for FooArgs {
fn from(_: ()) -> Self {
Self::default()
}
}
impl Fro...
为AppInventor2开发自己的拓展(Extension) - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...ce/extensions/aix_dev.html
为什么需要开发拓展？App Inventor 2 是积木式在线安卓开发环境，利用拖拽式的方式实现代码块堆叠，从而完成相应的逻辑。上手很容易，但是由于代码块提供的功能有限，使用比较单一，在开发上有很大的...
Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0
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I don't have rebase.exe on my Win10 64 Bit Pro, but calling the following did the trick (VS2010): "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64\editbin.exe" /REBASE:BASE=0x50000000 msys-1.0.dll
– Paul Bußmann
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What do linkers do?
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164
To understand linkers, it helps to first understand what happens "under the hood" when you conv...