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Should I use char** argv or char* argv[]?
...anslate all of the following, and all are the same thing:
int main(int c, char **argv);
int main(int c, char *argv[]);
int main(int c, char *argv[1]);
int main(int c, char *argv[42]);
Of course, it doesn't make much sense to be able to put any size in it, and it's just thrown away. For that reaso...
Printing hexadecimal characters in C
I'm trying to read in a line of characters, then print out the hexadecimal equivalent of the characters.
7 Answers
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C char array initialization
I'm not sure what will be in the char array after initialization in the following ways.
6 Answers
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How to convert a data frame column to numeric type?
...ertain "conversion anomaly":
# create dummy data.frame
d <- data.frame(char = letters[1:5],
fake_char = as.character(1:5),
fac = factor(1:5),
char_fac = factor(letters[1:5]),
num = 1:5, stringsAsFactors = FALSE)
Let us have a ...
std::string to char*
I want to convert a std::string into a char* or char[] data type.
18 Answers
18
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Clang vs GCC for my Linux Development project
...4/include/g++-v4/ostream:112: note: candidates are: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>& (*)(std::basic_ostream<_CharT, _Traits>&)) [with _CharT = char, _Traits = std::char_...
how to convert from int to char*?
...
In C++17, use std::to_chars as:
std::array<char, 10> str;
std::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* a...
How to convert/parse from String to char in java?
How do I parse a String value to a char type, in Java?
14 Answers
14
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How to remove certain characters from a string in C++?
...
string str("(555) 555-5555");
char chars[] = "()-";
for (unsigned int i = 0; i < strlen(chars); ++i)
{
// you need include <algorithm> to use general algorithms like std::remove()
str.erase (std::remove(str.begin(), str.end(), ...
Why is there no Char.Empty like String.Empty?
... a reason for this? I am asking because if you needed to use lots of empty chars then you get into the same situation as you would when you use lots of empty strings.
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