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How to convert an int to string in C?

...nvert your integer value to a string. Here is an example: int num = 321; char snum[5]; // convert 123 to string [buf] itoa(num, snum, 10); // print our string printf("%s\n", snum); If you want to output your structure into a file there is no need to convert any value beforehand. You can just...
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Pointer expressions: *ptr++, *++ptr and ++*ptr

...ith your program, as it's the simplest to explain. int main() { const char *p = "Hello"; while(*p++) printf("%c",*p); return 0; } The first statement: const char* p = "Hello"; declares p as a pointer to char. When we say "pointer to a char", what does that mean? It means th...
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How to remove all the occurrences of a char in c++ string

... Basically, replace replaces a character with another and '' is not a character. What you're looking for is erase. See this question which answers the same problem. In your case: #include <algorithm> str.erase(std::remove(str.begin(), str.end(), 'a...
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Convert a character digit to the corresponding integer in C

Is there a way to convert a character to an integer in C? 15 Answers 15 ...
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Int to Char in C#

What is the best way to convert an Int value to the corresponding Char in Utf16, given that the Int is in the range of valid values? ...
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Reading CSV file and storing values into an array

... LINQ way: var lines = File.ReadAllLines("test.txt").Select(a => a.Split(';')); var csv = from line in lines select (from piece in line select piece); ^^Wrong - Edit by Nick It appears the original answerer was attempting to populate csv with a...
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Why is char[] preferred over String for passwords?

In Swing, the password field has a getPassword() (returns char[] ) method instead of the usual getText() (returns String ) method. Similarly, I have come across a suggestion not to use String to handle passwords. ...
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Pretty-print C++ STL containers

...t print a delimiter after the final item template<typename T, typename TChar = char, typename TCharTraits = std::char_traits<TChar> > class pretty_ostream_iterator : public std::iterator<std::output_iterator_tag, void, void, void, void> { public: typedef TChar char_type; ty...
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Best way to serialize an NSData into a hexadeximal string

... string of NSData. Empty string if data is empty. */ const unsigned char *dataBuffer = (const unsigned char *)[self bytes]; if (!dataBuffer) return [NSString string]; NSUInteger dataLength = [self length]; NSMutableString *hexString = [NSMutableString stri...
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PHP: How to remove all non printable characters in a string?

I imagine I need to remove chars 0-31 and 127, 17 Answers 17 ...