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How much is the overhead of smart pointers compared to normal pointers in C++?
... the iteration is done you'll know you have to erase it. So you could gain extra memory from not using a smart_ptr...
But do you really want to do that?
A single memory leak could make your product have a point of failure in time (let's say your program leaks 4 megabytes each hour, it would take mon...
Test if characters are in a string
I'm trying to determine if a string is a subset of another string. For example:
9 Answers
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Java: parse int value from a char
... know if there's a better solution to parse a number from a character in a string (assuming that we know that the character at index n is a number).
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Calling C++ class methods via a function pointer
...ility with member pointers - Visual C++, at least in the past, needed some extra clues about how to represent member pointer types. I'd use the static function approach for an embedded system - the representation of a pointer is the same as any other function pointer, the costs are obvious, and ther...
Is there a way of making strings file-path safe in c#?
My program will take arbitrary strings from the internet and use them for file names. Is there a simple way to remove the bad characters from these strings or do I need to write a custom function for this?
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How to convert an int to string in C?
How do you convert an int (integer) to a string? I'm trying to make a function that converts the data of a struct into a string to save it in a file.
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error C2440: \'initializing\' : cannot convert from \'char *\' to \'co...
...: 'initializing' : cannot convert from 'char *' to 'const class std::basic_string *'error C2440: 'initializing' : cannot convert from 'char *' to 'const class std::basic_string<char,...error C2440: 'initializing' : cannot convert from 'char *' to 'const class std::basic_string<char,struct std::char_...
Why is String.chars() a stream of ints in Java 8?
In Java 8, there is a new method String.chars() which returns a stream of int s ( IntStream ) that represent the character codes. I guess many people would expect a stream of char s here instead. What was the motivation to design the API this way?
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C++ performance challenge: integer to std::string conversion
Can anyone beat the performance of my integer to std::string code, linked below?
13 Answers
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tinyxml XML解析库下载（tinyxml2.h 和 tinyxml2.cpp） - 源码下载 - 清泛...
...de <limits.h>
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# include <stdarg.h>
#else
# include <cctype>
# include <climits>
# include <cstdio>
# include <cstdlib>
# include <cstring>
# include <cstdarg>
#endif
/*
TODO: intern strings instead o...