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In C, how should I read a text file and print all strings
...igned.
If you want to read the file in chunks, but without dynamic memory allocation, you can do:
#define CHUNK 1024 /* read 1024 bytes at a time */
char buf[CHUNK];
FILE *file;
size_t nread;
file = fopen("test.txt", "r");
if (file) {
while ((nread = fread(buf, 1, sizeof buf, file)) > 0)
...
CSS hexadecimal RGBA?
...al notations: #RRGGBB
The syntax of a <hex-color> is a <hash-token> token whose value consists of 3, 4, 6, or 8 hexadecimal digits. In other words, a hex color is written as a hash character, "#", followed by some number of digits 0-9 or letters a-f (the case of the letters doesn’...
What is a “memory stomp”?
...at conflicts. There are several common ways memory can be stomped.
One is allocating, say, 100 bytes of memory but then storing something past the 100th address. This memory might be used to hold something completely different. This is particularly hard to debug because the problem will appear when...
cancelling a handler.postdelayed process
...
Remove any pending posts of callbacks and sent messages whose obj is
token. If token is null, all callbacks and messages will be removed.
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How much faster is C++ than C#?
...d expect to get representative results (eg. performing thousands of memory allocations in C++ is going to give you terrible numbers.)
Instead, I wrote slightly more idiomatic C++ code and compared against the C# code @Wiory provided. The two major changes I made to the C++ code were:
1) used vect...
Where are environment variables stored in registry?
... PATH /t REG_SZ /f /d "%PATH%"
::@REG QUERY %l_regpath% /v %1 /S
@FOR /F "tokens=*" %%A IN ('REG QUERY %l_regpath% /v %1 /S') DO (
@ set l_a=%%A
@ if NOT "!l_a!"=="!l_a: =!" set l_line=!l_a!
)
::delimiter is four spaces change it to tab \t
@set l_line=!l_line!
@set l_line=%l_line: = %
...
How to create a fixed-size array of objects
... initialize it with nil values, you can use an UnsafeMutableBufferPointer, allocate memory for 64 nodes with it, and then read/write from/to the memory by subscripting the pointer type instance. This also has the benefit of avoiding checking if the memory must be reallocated, which Array does. I wou...
What does the caret (‘^’) mean in C++/CLI?
...
// here normal pointer
P* ptr = new P; // usual pointer allocated on heap
P& nat = *ptr; // object on heap bind to native object
//.. here CLI managed
MO^ mngd = gcnew MO; // allocate on CLI heap
MO% rr = *mngd; // object on CLI heap reference to gc-lvalue
In general, the ...
Is it possible to make the -init method private in Objective-C?
...ect is used, don't bother. Specifically, don't bother with the "override +allocWithZone:, -init, -retain, -release" method of creating singletons. It's virtually always unnecessary and is just adding complication for no real significant advantage.
Instead, just write your code such that your +sha...
JavaScript: client-side vs. server-side validation
...eous calls to check if unique; if unique, also reserve it with a temporary token assigned to the client that is also released if a different username is tested by the same session ID. The token should expire after a reasonable time. Example: TicketMaster seat reserve.
– Elaskan...