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Why is argc not a constant?

...at any C function can do. Also, getopt is declared as int getopt(int argc, char * const argv[], const char *optstring);. And here the const is not top level, but declares the pointers to be const, a promise to not modify them (although the strings that they point to might conceivably be modified). ...
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How to upper case every first letter of word in a string? [duplicate]

...ring[] strArr = source.split(" "); for (String str : strArr) { char[] stringArray = str.trim().toCharArray(); stringArray[0] = Character.toUpperCase(stringArray[0]); str = new String(stringArray); res.append(str).append(" "); } System.out.print("Result: ...
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Installing Google Protocol Buffers on mac

...: implicit instantiation of undefined template 'std::__1::basic_istream<char, std::__1::char_traits<char> >' return ParseFromZeroCopyStream(&zero_copy_input) && input->eof(); ^ /Applications/Xcode.app/Co...
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Detecting endianness programmatically in a C++ program

... for ! bool is_big_endian(void) { union { uint32_t i; char c[4]; } bint = {0x01020304}; return bint.c[0] == 1; } The principle is equivalent to the type case as suggested by others, but this is clearer - and according to C99, is guaranteed to be correct. gcc prefers ...
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Can I run multiple programs in a Docker container?

... There can be only one ENTRYPOINT, but that target is usually a script that launches as many programs that are needed. You can additionally use for example Supervisord or similar to take care of launching multiple services inside single container. This is an example of a docker container run...
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How to check if a String is numeric in Java

... Note that the . in your regex will match any character, not just the decimal separator character. – jqno Jul 11 '09 at 8:16 9 ...
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How to get the number of characters in a std::string?

How should I get the number of characters in a string in C++? 12 Answers 12 ...
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Why are Oracle table/column/index names limited to 30 characters?

...ine of code that goes something like l_table_name VARCHAR2(30); BEGIN SELECT table_name INTO l_table_name FROM dba_tables WHERE ... to suddenly break because the DBA 15 years ago used VARCHAR2(30) rather than DBA_TABLES.TABLE_NAME%TYPE in the script would cause massive revolt. I w...
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Does Notepad++ show all hidden characters?

...ould identify the character, where cursor takes 2 arrow keys to move, just select that character. do Ctrl-F now you can count or replace or even mark all such characters share | improve this an...
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what is Segmentation fault (core dumped)? [duplicate]

...ith your arguments of main. The main function should be int main(int argc, char *argv[]), and you should check that argc is at least 2 before accessing argv[1]. Also, since you're passing in a float to printf (which, by the way, gets converted to a double when passing to printf), you should use the...