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no acceptable C compiler found in $PATH when installing python
...
Is there an alternative for zypper?
– Almino Melo
Apr 29 '15 at 17:39
1
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What does “zend_mm_heap corrupted” mean
... worse, or do nothing at all.
The nature of the error is this:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main(void) {
void **mem = malloc(sizeof(char)*3);
void *ptr;
/* read past end */
ptr = (char*) mem[5];
/* write past end */
...
How do I find the caller of a method using stacktrace or reflection?
...
An alternative solution can be found in a comment to this request for enhancement.
It uses the getClassContext() method of a custom SecurityManager and seems to be faster than the stack trace method.
The following program tests ...
What is this weird colon-member (“ : ”) syntax in the constructor?
...tion call syntax. It's initialization syntax, like int i(23);, std::vector<double> emptyVec(0);, std::vector<double> fullVec(10,23.);, etc. Only with the type removed, of course, because the type is in the member declaration.
– Steve Jessop
Nov 11 '...
In what cases could `git pull` be harmful?
...
Summary
By default, git pull creates merge commits which add noise and complexity to the code history. In addition, pull makes it easy to not think about how your changes might be affected by incoming changes.
The git pull command is safe ...
Booleans, conditional operators and autoboxing
... null returned at run-time.
For E2, types of the 2nd and 3rd operands are <special null type> (not Boolean as in E1!) and boolean respectively, so no specific typing clause applies (go read 'em!), so the final "otherwise" clause applies:
Otherwise, the second and third operands are of type...
How do I convert a Vector of bytes (u8) to a string
... encoding):
use std::str;
//
// pub fn from_utf8(v: &[u8]) -> Result<&str, Utf8Error>
//
// Assuming buf: &[u8]
//
fn main() {
let buf = &[0x41u8, 0x41u8, 0x42u8];
let s = match str::from_utf8(buf) {
Ok(v) => v,
Err(e) => panic!("Invalid UT...
How do you create a static class in C++?
...
struct Beta
{
static void foo() ;
static void bar() ;
};
template <typename T>
struct Gamma
{
void foobar()
{
T::foo() ;
T::bar() ;
}
};
Gamma<alpha> ga ; // compilation error
Gamma<Beta> gb ; // ok
gb.foobar() ; // ok !!!
Because, if a class ca...
Making a UITableView scroll when text field is selected
...ld {
UITableViewCell *cell;
if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_6_1) {
// Load resources for iOS 6.1 or earlier
cell = (UITableViewCell *) textField.superview.superview;
} else {
// Load resources for iOS 7 or later
cell ...
Is there a performance difference between a for loop and a for-each loop?
...for error by
hiding the iterator or index variable
completely. The resulting idiom
applies equally to collections and
arrays:
// The preferred idiom for iterating over collections and arrays
for (Element e : elements) {
doSomething(e);
}
When you see the colon (:), read it as
...