解析 C 中的命令列參數

我自己解析：

#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef struct {
    char* filepath;
    bool myflag;
    int myvalue;
} CliArgs;

static inline void error(const char* message) {
    fprintf(stderr, "%s\n", message);
    exit(1);
}

CliArgs parse(int argc, char** argv) {
    CliArgs cli_args = { .filepath = 0, .myflag = false, .myvalue = 0 };

    if (argc == 1)
        error("No argument was passed.");

    for (int i = 1; i 



<p>運行它：<br>
</p>

<pre class="brush:php;toolbar:false">$ gcc cli_args.c -o cli_args

$ ./cli_args 
No argument was passed.

$ ./cli_args foo.txt
./cli_args was called:
foo.txt is the filepath, myflag is false and myvalue is 0.

$ ./cli_args foo.txt --myvalue
No value passed for --myvalue.

$ ./cli_args foo.txt --myvalue bar
Invalid value for --myvalue.

$ ./cli_args foo.txt --myvalue 123
./cli_args was called:
foo.txt is the filepath, myflag is false and myvalue is 123.

$ ./cli_args foo.txt --myvalue 123 --myflag
./cli_args was called:
foo.txt is the filepath, myflag is true and myvalue is 123.

以上是解析 C 中的命令列參數的詳細內容。更多資訊請關注PHP中文網其他相關文章！