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C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
... <stdio.h>
struct str{
int len;
char s[0];
};
struct foo {
struct str *a;
};
int main(int argc, char** argv) {
struct foo f={0};
if (f.a->s) {
printf( f.a->s);
}
return 0;
}
你编译一下上面的代码，在...
Remove vertical padding from horizontal ProgressBar
... tried to avoid to add another dependency just to remove some padding. But all other solutions failed in one or the other way/version and in the end this was like 3 minutes to make it work!! Thank you.
– ToniTornado
Jan 10 '18 at 23:32
...
MySQL Error 1153 - Got a packet bigger than 'max_allowed_packet' bytes
I'm importing a MySQL dump and getting the following error.
14 Answers
14
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How to enable MySQL Query Log?
...able, disable and to see the logs on live servers without restarting.
Log all queries in mysql
Here is a summary:
If you don't want or cannot restart the MySQL server you can proceed like this on your running server:
Create your log tables (see answer)
Enable Query logging on the database
(No...
Get yesterday's date in bash on Linux, DST-safe
I have a shell script that runs on Linux and uses this call to get yesterday's date in YYYY-MM-DD format:
10 Answers
...
minimum double value in C/C++
Is there a standard and/or portable way to represent the smallest negative value (e.g. to use negative infinity) in a C(++) program?
...
Rounding a double to turn it into an int (java)
...ddressing people who would be afraid to use Math.round(), which does "literally" the same as the solution you provide, that is all. Cheers.
– Gauthier Boaglio
Feb 11 '16 at 16:37
...
Are std::vector elements guaranteed to be contiguous?
...e in the middle take linear time. Storage
management is handled automatically, though hints can be given to improve efficiency. The elements of a
vector are stored contiguously, meaning that if v is a vector where T is some type other
than bool, then it obeys the identity &v[n] == &v[0...
How to lazy load images in ListView in Android
...GE"/> Please
create only one instance of ImageLoader and reuse it all around your
application. This way image caching will be much more efficient.
It may be helpful to somebody. It downloads images in the background thread. Images are being cached on an SD card and in memory. The cache ...
How do I replace the *first instance* of a string in .NET?
I want to replace the first occurrence in a given string.
14 Answers
14
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