我在 rebase 方面遇到了问题。我想压缩一些构建,但我不能。
这是我执行命令时得到的git log –oneline:
git log --oneline
2e6d3cf Fix bug fetching data
4abe96e conflicts merged
34d130d latam_schedule with geotargeted languaje and data fetching
8687f73 removes extra lines, and add the includes I remove before.
eed4f10 unnecessary adds and sample block removed
d2d58e6 latam_schedule with geotargeted languaje and data fetching
75b1b6d parseo el string para extraer las horas.
8a3b067 Agrego un render con datos reales
d856ef1 Agrego un render de data dummy
7331f83 Alert removed(commented)
128bfc1 First …Run Code Online (Sandbox Code Playgroud) 我有这个数组
let buffer: &[u8] = &[0; 40000];
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但是当我想像这样映射它时:
*buffer.map( |x| 0xff);
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我有以下错误:
let buffer: &[u8] = &[0; 40000];
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我尝试了几种方法来使元素可变,但我无法获得正确的语法。有人有经验吗?我正在尝试使用 png 图像缓冲区。
我正在尝试渲染图像。我编写了一个put_pixel函数,将RGBA像素写入代表图像的数组中。
图像是保存i8值的一维数组(每个字节都是颜色的组成部分)。我想一步写颜色。
fn put_pixel(x: u16, y: u16, color: u32, width: u16, height: u16, buffer: &[u8]) {
let index = 0; // I'll calculate the right index later.
buffer[index] as u32 = color; // I want to write the color here.
}
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所以,这给了我一个错误,说
fn put_pixel(x: u16, y: u16, color: u32, width: u16, height: u16, buffer: &[u8]) {
let index = 0; // I'll calculate the right index later.
buffer[index] as u32 = color; // I want to …Run Code Online (Sandbox Code Playgroud) 我有一个动画,在默认构造函数,析构函数和另一个构造函数中打印一些独特的字符串:
class Animation{
public:
int x;
Animation(int x) {
std::cout << "+ animation\n";
}
Animation() {
std::cout << "+ animation\n";
}
~Animation() {
std::cout << "- animation\n";
}
}
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我想用这个对象填充std :: map,std :: map定义是这样的:
std::map<int, Animation> animations;
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当我尝试填充地图时,我这样做
void createAnimations(){
animations[0] = Animation(10);
animations[1] = Animation(10);
animations[2] = Animation(10);
animations[3] = Animation(10);
animations[4] = Animation(10);
}
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当我运行程序时,打印出来
+ *animation
+ animation
- animation
+ *animation
+ animation
- animation
+ *animation
+ animation
- animation
+ *animation
+ animation
- …Run Code Online (Sandbox Code Playgroud)