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Unexpected results when working with very big integers on interpreted languages
...o a power far greater than the bit width of the platform:
>>> 2**99
633825300114114700748351602688L
You can demonstrate (with Python) that the erroneous values you are getting in PHP is because PHP is promoting to a float when the values are greater than 2**32-1:
>>> int(sum(fl...
Does C have a “foreach” loop construct?
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199
C doesn't have a foreach, but macros are frequently used to emulate that:
#define for_each_ite...
Seeking clarification on apparent contradictions regarding weakly typed languages
...f these things at the same time. So you can, for example, write:
$foo = "123" + "456"; # $foo = 579
$bar = substr($foo, 2, 1); # $bar = 9
$bar .= " lives"; # $bar = "9 lives"
$foo -= $bar; # $foo = 579 - 9 = 570
Of course, as you correctly note, all...
Remove spaces from std::string in C++
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Matt PriceMatt Price
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Using switch statement with a range of value in each case?
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99
Java has nothing of that sort. Why not just do the following?
public static boolean isBetween(...
How do you get the length of a string?
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Artem BargerArtem Barger
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Center image using text-align center?
... codecraftnapcodecraftnap
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Converting BigDecimal to Integer
...{
given:
BigDecimal decimal = new BigDecimal(Integer.MAX_VALUE - 1.99)
BigDecimal hugeDecimal = new BigDecimal(Integer.MAX_VALUE + 1.99)
BigDecimal reallyHuge = new BigDecimal("10000000000000000000000000000000000000000000000")
String decimalAsBigIntString = decimal.toBigInteger()...
PHP parse/syntax errors; and how to solve them
... trying to dereference constants (before PHP 5.6) as arrays:
$var = const[123];
⇑
At least PHP interprets that const as a constant name.
If you meant to access an array variable (which is the typical cause here), then add the leading $ sigil - so it becomes a $varname.
You are trying to...
What is uintptr_t data type
...ng, at the time the question was asked, uintptr_t was not in C++. It's in C99, in <stdint.h>, as an optional type. Many C++03 compilers do provide that file. It's also in C++11, in <cstdint>, where again it is optional, and which refers to C99 for the definition.
In C99, it is defined a...