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Difference between TCP and UDP?
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TCP is a connection oriented stream over an IP network. It guarantees that all sent packets will reach the destination in the correct order. This imply the use of acknowledgement packets sent back to the sender, and automatic retransmission, causing additional delays a...
HTTP Basic Authentication credentials passed in URL and encryption
... @Brandon was probably thinking "in URL" meant in the query string (eg, ?user=bob&pw=123hackmeplz) . That could end up in the server logs.
– Mike Graf
Jun 24 '13 at 22:49
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C++ deprecated conversion from string constant to 'char*'
...ver you have a situation like the following:
char* pointer_to_nonconst = "string literal";
Why? Well, C and C++ differ in the type of the string literal. In C the type is array of char and in C++ it is constant array of char. In any case, you are not allowed to change the characters of the string...
Why do I get a segmentation fault when writing to a “char *s” initialized with a string literal, but
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Q: What is the difference between these initializations?
char a[] = "string literal";
char *p = "string literal";
My program crashes if I try to assign a new value to p[i].
A: A string literal (the formal term
for a double-quoted string in C
source) can be used in two slightly
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how to convert from int to char*?
...:to_chars(str.data(), str.data() + str.size(), 42);
In C++11, use std::to_string as:
std::string s = std::to_string(number);
char const *pchar = s.c_str(); //use char const* as target type
And in C++03, what you're doing is just fine, except use const as:
char const* pchar = temp_str.c_str(); /...
What's the difference between a word and byte?
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For extra credit, a "nibble" is a common term for half a byte. It arose during the early microcomputer CPU era (e.g., the Intel 8080), and was always understood to be 4 bits, because by then the byte had settled down to 8 bits.
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How to represent empty char in Java Character class
I want to represent an empty character in Java as "" in String...
15 Answers
15
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How do I concatenate two strings in C?
How do I add two strings?
11 Answers
11
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Why is there no Char.Empty like String.Empty?
...en you get into the same situation as you would when you use lots of empty strings.
20 Answers
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Get string character by index - Java
I know how to work out the index of a certain character or number in a string, but is there any predefined method I can use to give me the character at the nth position? So in the string "foo", if I asked for the character with index 0 it would return "f".
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