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About Dev-C Dev-C is a free integrated development environment (IDE) for programming in C/C. Dev-C is developed by Bloodshed software. It is shipped with the open source MinGW compiler. MinGW uses GCC,the GNU g compiler collection. With Dev-C you can write Windows or console-based C/C programs easily, you can even create installer. Argc and argv are the command line arguments. Argc (argument count) is the number of arguments, and argv (argument vector) is an array of strings representing the arguments. These arguments are filled in automatically when the program is run. Argv0 will always be equal to the name of your program, even when run without arguments, and thus.
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Argc Argv Dev C Treegood C++
The getopt() is one of the built-in C function that are used for taking the command line options. The syntax of this function is like below −
The opstring is a list of characters. Each of them representing a single character option.
This function returns many values. These are like below −
- If the option takes a value, then that value will be pointed by optarg.
- It will return -1, when no more options to proces
- Returns ‘?’ to show that this is an unrecognized option, it stores it to optopt.
- Sometimes some options need some value, If the option is present but the values are not there, then also it will return ‘?’. We can use ‘:’ as the first character of the optstring, so in that time, it will return ‘:’ instead of ‘?’ if no value is given.
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