在GMock测试方法,我需要设置了参数变量的地址,这样的输出参数dequeue(),这是data指向变量ch:
MOCK_METHOD1(dequeue, void(void* data));
char ch = 'm';
void* a = (void*)&ch;
EXPECT_CALL(FQO, dequeue(_))
.WillOnce(/*here I need to set argument to a*/);
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我试图找出副作用,但一直出错.
如果我是字节数组:
byte_array := []byte("klm,\x15\xf1\n")
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我想以LittleEndian顺序将字节\ x15和\ xf1添加到uint16.这样做最简单的方法是什么?
尝试以下方法:
var new_uint uint16
bff := bytes.newRead(byte_array[4:5])
err = binary.Read(buff, binary.LittleEndian, &new_uint)
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但我一无所获,这是相对复杂的,有更简单的方法吗?
谢谢...
对于sha256sum的以下执行和结果
~/HydroGuardFW/hw_1_5/Debug$ sha256sum debug_2.0.5.hex
34c977f0df3e90f9a4b36da3cd39fdccf3cd1123c563894b3a3378770a19fc6d debug_2.0.5.hex
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输出将分为两部分,即sha256和计算出sha256总和的文件名的回显。如何将输出的第一部分(即sha256)捕获到变量中,以便可以使用bash脚本将其放置到文件中。
当我尝试编译此代码时,为什么g ++报告错误?
class A {
private:
static A* Aptr[5];
public:
static int A_count;
A() {
Aptr[A_count] = this;
}
};
int A::A_count = 0;
int main() {
A a_;
A b_;
return 0;
}
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/tmp/ccrp4BGg.o: In function `A::A()':
try.cpp:(.text._ZN1AC2Ev[_ZN1AC5Ev]+0x18): undefined reference to `A::Aptr'
collect2: error: ld returned 1 exit status
Run Code Online (Sandbox Code Playgroud) Lets say a program that outputs a zero in case of success, or 1 in case of failure, like this:
main () {
if (task_success())
return 0;
else
return 1;
}
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Similar with Python, if you execute exit(0) or exit(1) to indicate the result of running a script. How do you know what the program outputs when you run it in shell. I tried this:
./myprog 2> out
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but I do not get the result in the file.