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Read/write files within a Linux kernel module
...ad.h>
Opening a file (similar to open):
struct file *file_open(const char *path, int flags, int rights)
{
struct file *filp = NULL;
mm_segment_t oldfs;
int err = 0;
oldfs = get_fs();
set_fs(get_ds());
filp = filp_open(path, flags, rights);
set_fs(oldfs);
if (I...
How to remove first 10 characters from a string?
How to ignore the first 10 characters of a string?
12 Answers
12
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What happens if you static_cast invalid value to enum class?
... implementers to apply to to their C++11 and C++14 compilation modes.
(*) char is required to be at least 8 bit wide, but isn't required to be unsigned. The maximum value storable is required to be at least 127 per Annex E of the C99 Standard.
Compare to [expr]/4
If during the evaluation of ...
Does making a struct volatile make all its members volatile?
...by the pointer as const or volatile, use a declaration of the form:
const char *cpch;
volatile char *vpch;
To declare the value of the pointer — that is, the actual address stored in the pointer — as const or volatile, use a declaration of the form:
char * const pchc;
char * volatile pchv;
...
Use String.split() with multiple delimiters
... answered May 13 '11 at 14:59
Richard HRichard H
32.9k3333 gold badges101101 silver badges130130 bronze badges
...
Where is C not a subset of C++? [closed]
...zeof('a') is equal to sizeof(int).
In C++, sizeof('a') is equal to sizeof(char).
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SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?
...ould restructure your schema into this,
CREATE TABLE Categories
(
Code CHAR(4) NOT NULL PRIMARY KEY,
CategoryName VARCHAR(63) NOT NULL UNIQUE
);
CREATE TABLE Courses
(
CourseID INT NOT NULL PRIMARY KEY,
BookID INT NOT NULL,
CatCode CHAR(4) NOT NULL,
CourseNum CHAR(3) NOT NULL,
Cour...
What is the MySQL VARCHAR max size?
I would like to know what the max size is for a MySQL VARCHAR type.
7 Answers
7
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Forward an invocation of a variadic function in C
...t. See http://c-faq.com/varargs/handoff.html.
Example:
void myfun(const char *fmt, va_list argp) {
vfprintf(stderr, fmt, argp);
}
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How to stop C++ console application from exiting immediately?
..., please expand Configuration Properties -> Linker -> System, please select Console (/SUBSYSTEM:CONSOLE) in SubSystem dropdown. Because, by default, the Empty project does not specify it.
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