1 | #include <time.h>
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2 | #include <string.h>
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3 |
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4 | #define _XSTR(x) #x
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5 | #define __XSTR(x) _XSTR(x)
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6 | #define SUBFUNCTION() subfunct(__FUNCTION__, __FILE__, __XSTR(__LINE__))
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7 | #define _SUBFUNCTION(a,b,c) subfunct(a, b, #c)
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8 |
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9 |
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10 |
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11 |
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12 | void subfunct(char *func, char *file, char *line)
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13 | {
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14 | char *descr;
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15 | /* "file.c" ":" "122" ", " "main" "():\n\0" */
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16 | descr = alloca(strlen(file)+1 +strlen(line)+ 2 +strlen(func)+5);
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17 | sprintf(descr, "%s:%s, %s():\n", file, line, func);
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18 | printf("'%s'", descr);
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19 | }
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20 |
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21 | int main(int argc, char *argv [])
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22 | {
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23 | time_t clock;
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24 | struct tm tm;
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25 |
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26 | char buf[100];
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27 | int x;
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28 |
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29 | printf("\\t=%u \\n=%u \\r=%u \\c=%u \n", (unsigned) '\t',(unsigned) '\n',(unsigned) '\r',(unsigned) '\c' );
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30 |
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31 | time(&clock);
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32 | /*
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33 | ctime_r(&clock, buf);
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34 | printf("'%s' strlen()=%d\n", buf, strlen(buf));
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35 |
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36 | buf[strlen(buf)-6] = '*';
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37 | buf[10] = '>';
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38 |
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39 | printf("'%s' strlen()=%d\n", buf, strlen(buf));
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40 | */
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41 | localtime_r(&clock, &tm);
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42 |
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43 | printf("%d.%d.%d %02d:%02d:%02d\n", tm.tm_mday, tm.tm_mon, tm.tm_year+1900, tm.tm_hour, tm.tm_min, tm.tm_sec);
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44 | usleep(500000);
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45 |
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46 | clock = time(NULL);
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47 | localtime_r(&clock, &tm);
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48 | // localtime_r(NULL, &tm);
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49 | printf("%d.%d.%d %02d:%02d:%02d\n", tm.tm_mday, tm.tm_mon, tm.tm_year+1900, tm.tm_hour, tm.tm_min, tm.tm_sec);
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50 |
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51 | printf("func: %s, file: %s, line: %d\n", __FUNCTION__, __FILE__, __LINE__);
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52 |
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53 | SUBFUNCTION();
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54 |
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55 | printf("basename: %s\n", strrchr(argv[0], '/'));
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56 | #define BASENAME(a) printf("basename of \""a"\" is \"%s\"\n", strrchr(a, '/'))
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57 |
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58 | BASENAME("name");
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59 | BASENAME("/name");
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60 | BASENAME("path/name");
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61 | BASENAME("/path/name");
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62 | BASENAME("path/");
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63 | BASENAME("/path/");
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64 | return 0;
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65 | }
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