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How to Parse Command Line Arguments in C++? [duplicate]
...d option has been passed in like -h for help.
#include <algorithm>
char* getCmdOption(char ** begin, char ** end, const std::string & option)
{
char ** itr = std::find(begin, end, option);
if (itr != end && ++itr != end)
{
return *itr;
}
return 0;
}
b...
How to declare strings in C [duplicate]
...
Strings in C are represented as arrays of characters.
char *p = "String";
You are declaring a pointer that points to a string stored some where in your program (modifying this string is undefined behavior) according to the C programming language 2 ed.
char p2[] =...
How to convert byte array to string [duplicate]
...
You can do it without dealing with encoding by using BlockCopy:
char[] chars = new char[bytes.Length / sizeof(char)];
System.Buffer.BlockCopy(bytes, 0, chars, 0, bytes.Length);
string str = new string(chars);
sha...
Lazy Method for Reading Big File in Python?
... assert len(list(rows(f, chunksize=chunksize))) == 1
@cleanup
def test_1_char_2_rows(chunksize=1024):
with open(test_file, 'w') as f:
f.write('|')
with open(test_file) as f:
assert len(list(rows(f, chunksize=chunksize))) == 2
@cleanup
def test_1_char(chunksize=1024):
w...
Print text instead of value from C enum
...g here that you move the declaration of enum Days outside of main):
const char* getDayName(enum Days day)
{
switch (day)
{
case Sunday: return "Sunday";
case Monday: return "Monday";
/* etc... */
}
}
/* Then, later in main: */
printf("%s", getDayName(TheDay));
Altern...
Random String Generator Returning Same String [duplicate]
...g. My goal is to be able to run this twice and generate two distinct four character random strings. However, it just generates one four character random string twice.
...
How can I use UUIDs in SQLAlchemy?
...cause it implicitly tries to do some sort of character conversion for the "select * from table where id =..." and there's miscellaneous display issues.
Other than that everything seems to work fine, and so I'm throwing it out there. Leave a comment if you see a glaring error with it. I welcome any ...
How to get the URL without any parameters in JavaScript?
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You can concat origin and pathname, if theres present a port such as example.com:80, that will be included as well.
location.origin + location.pathname
sha...
How to read the content of a file to a string in C?
... to interpret it) to open a file in C and read its contents into a string (char*, char[], whatever)?
11 Answers
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How can I get a file's size in C? [duplicate]
...ring, which I allocate using malloc() . Just writing malloc(10000*sizeof(char)); is IMHO a bad idea.
8 Answers
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