C 如果没有IDE，如何查找声明/定义？

我已经使用EclipseIDE好几年了。在用C编程时，我习惯于按住Ctrl键并单击符号，Eclipse将我带到符号声明的文件和行

没有IDE，我如何实现这一点？我正在使用gcc编译一个包含数百个头文件的大型FOSS项目。通过查看C文件，我看到了我想了解更多的函数。查找声明所述函数的头文件是一项繁琐的手动任务。更不用说手动解释宏了

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GCC编译项目并知道声明是什么以及在哪里。是否可以为给定编译生成所有符号声明及其文件名和位置的可读索引？

一种轻量级的黑客方法是通过头文件grep获取函数名。Linux语法类似于：

find-键入f-名称“*.h”| xargs grep[函数名]

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这是我用于中等规模项目的方法。我说不出它的伸缩性有多好。

一种轻量级的黑客方法是在函数名的头文件中搜索grep。Linux语法类似于：

find-键入f-名称“*.h”| xargs grep[函数名]

---

这是我用于中等规模项目的方法。我说不出它的伸缩性有多好。

听起来你在寻找

-aux info

标志；它将把翻译单元中声明或定义的所有函数（包括头文件中的函数）的列表写入指定的输出文件

下面是我为另一个SO问题（不记得是为了什么）编写的一段愚蠢的代码：

在

test.aux中生成此输出：

/* compiled from: . */
/* /usr/include/libio.h:413:NC */ extern int __underflow (_IO_FILE *);
/* /usr/include/libio.h:414:NC */ extern int __uflow (_IO_FILE *);
/* /usr/include/libio.h:415:NC */ extern int __overflow (_IO_FILE *, int);
/* /usr/include/libio.h:416:NC */ extern wint_t __wunderflow (_IO_FILE *);
/* /usr/include/libio.h:417:NC */ extern wint_t __wuflow (_IO_FILE *);
/* /usr/include/libio.h:418:NC */ extern wint_t __woverflow (_IO_FILE *, wint_t);
/* /usr/include/libio.h:451:NC */ extern int _IO_getc (_IO_FILE *);
/* /usr/include/libio.h:452:NC */ extern int _IO_putc (int, _IO_FILE *);
/* /usr/include/libio.h:453:NC */ extern int _IO_feof (_IO_FILE *);
/* /usr/include/libio.h:454:NC */ extern int _IO_ferror (_IO_FILE *);
/* /usr/include/libio.h:456:NC */ extern int _IO_peekc_locked (_IO_FILE *);
/* /usr/include/libio.h:462:NC */ extern void _IO_flockfile (_IO_FILE *);
/* /usr/include/libio.h:463:NC */ extern void _IO_funlockfile (_IO_FILE *);
/* /usr/include/libio.h:464:NC */ extern int _IO_ftrylockfile (_IO_FILE *);
/* /usr/include/libio.h:482:NC */ extern int _IO_vfscanf (_IO_FILE *, const char *, __va_list_tag *, int *);
/* /usr/include/libio.h:484:NC */ extern int _IO_vfprintf (_IO_FILE *, const char *, __va_list_tag *);
/* /usr/include/libio.h:485:NC */ extern __ssize_t _IO_padn (_IO_FILE *, int, __ssize_t);
/* /usr/include/libio.h:486:NC */ extern size_t _IO_sgetn (_IO_FILE *, void *, size_t);
/* /usr/include/libio.h:488:NC */ extern __off64_t _IO_seekoff (_IO_FILE *, __off64_t, int, int);
/* /usr/include/libio.h:489:NC */ extern __off64_t _IO_seekpos (_IO_FILE *, __off64_t, int);
/* /usr/include/libio.h:491:NC */ extern void _IO_free_backup_area (_IO_FILE *);
/* /usr/include/stdio.h:154:NC */ extern int remove (const char *);
/* /usr/include/stdio.h:156:NC */ extern int rename (const char *, const char *);
/* /usr/include/stdio.h:171:NC */ extern FILE *tmpfile (void);
/* /usr/include/stdio.h:185:NC */ extern char *tmpnam (char *);
/* /usr/include/stdio.h:213:NC */ extern int fclose (FILE *);
/* /usr/include/stdio.h:218:NC */ extern int fflush (FILE *);
/* /usr/include/stdio.h:249:NC */ extern FILE *fopen (const char *, const char *);
/* /usr/include/stdio.h:256:NC */ extern FILE *freopen (const char *, const char *, FILE *);
/* /usr/include/stdio.h:309:NC */ extern void setbuf (FILE *, char *);
/* /usr/include/stdio.h:314:NC */ extern int setvbuf (FILE *, char *, int, size_t);
/* /usr/include/stdio.h:334:NC */ extern int fprintf (FILE *, const char *, ...);
/* /usr/include/stdio.h:339:NC */ extern int printf (const char *, ...);
/* /usr/include/stdio.h:342:NC */ extern int sprintf (char *, const char *, ...);
/* /usr/include/stdio.h:349:NC */ extern int vfprintf (FILE *, const char *, __va_list_tag *);
/* /usr/include/stdio.h:354:NC */ extern int vprintf (const char *, __va_list_tag *);
/* /usr/include/stdio.h:357:NC */ extern int vsprintf (char *, const char *, __va_list_tag *);
/* /usr/include/stdio.h:365:NC */ extern int snprintf (char *, size_t, const char *, ...);
/* /usr/include/stdio.h:369:NC */ extern int vsnprintf (char *, size_t, const char *, __va_list_tag *);
/* /usr/include/stdio.h:406:NC */ extern int fscanf (FILE *, const char *, ...);
/* /usr/include/stdio.h:411:NC */ extern int scanf (const char *, ...);
/* /usr/include/stdio.h:414:NC */ extern int sscanf (const char *, const char *, ...);
/* /usr/include/stdio.h:425:NC */ extern int vfscanf (FILE *, const char *, __va_list_tag *);
/* /usr/include/stdio.h:432:NC */ extern int vscanf (const char *, __va_list_tag *);
/* /usr/include/stdio.h:437:NC */ extern int vsscanf (const char *, const char *, __va_list_tag *);
/* /usr/include/stdio.h:447:NC */ extern int fgetc (FILE *);
/* /usr/include/stdio.h:448:NC */ extern int getc (FILE *);
/* /usr/include/stdio.h:454:NC */ extern int getchar (void);
/* /usr/include/stdio.h:489:NC */ extern int fputc (int, FILE *);
/* /usr/include/stdio.h:490:NC */ extern int putc (int, FILE *);
/* /usr/include/stdio.h:496:NC */ extern int putchar (int);
/* /usr/include/stdio.h:539:NC */ extern char *fgets (char *, int, FILE *);
/* /usr/include/stdio.h:546:NC */ extern char *gets (char *);
/* /usr/include/stdio.h:596:NC */ extern int fputs (const char *, FILE *);
/* /usr/include/stdio.h:602:NC */ extern int puts (const char *);
/* /usr/include/stdio.h:609:NC */ extern int ungetc (int, FILE *);
/* /usr/include/stdio.h:617:NC */ extern size_t fread (void *, size_t, size_t, FILE *);
/* /usr/include/stdio.h:623:NC */ extern size_t fwrite (const void *, size_t, size_t, FILE *);
/* /usr/include/stdio.h:656:NC */ extern int fseek (FILE *, long int, int);
/* /usr/include/stdio.h:661:NC */ extern long int ftell (FILE *);
/* /usr/include/stdio.h:666:NC */ extern void rewind (FILE *);
/* /usr/include/stdio.h:705:NC */ extern int fgetpos (FILE *, fpos_t *);
/* /usr/include/stdio.h:710:NC */ extern int fsetpos (FILE *, const fpos_t *);
/* /usr/include/stdio.h:733:NC */ extern void clearerr (FILE *);
/* /usr/include/stdio.h:735:NC */ extern int feof (FILE *);
/* /usr/include/stdio.h:737:NC */ extern int ferror (FILE *);
/* /usr/include/stdio.h:753:NC */ extern void perror (const char *);
/* test.c:4:NF */ extern int main (int argc, const char **argv); /* (argc, argv) int argc; const char **argv; */

此标志只适用于C代码，不过它不会给C++提供任何东西。p> 听起来像是在寻找
-aux info
标志；它将把翻译单元中声明或定义的所有函数（包括头文件中的函数）的列表写入指定的输出文件

下面是我为另一个SO问题（不记得是为了什么）编写的一段愚蠢的代码：

在
test.aux中生成此输出：

/* compiled from: . */
/* /usr/include/libio.h:413:NC */ extern int __underflow (_IO_FILE *);
/* /usr/include/libio.h:414:NC */ extern int __uflow (_IO_FILE *);
/* /usr/include/libio.h:415:NC */ extern int __overflow (_IO_FILE *, int);
/* /usr/include/libio.h:416:NC */ extern wint_t __wunderflow (_IO_FILE *);
/* /usr/include/libio.h:417:NC */ extern wint_t __wuflow (_IO_FILE *);
/* /usr/include/libio.h:418:NC */ extern wint_t __woverflow (_IO_FILE *, wint_t);
/* /usr/include/libio.h:451:NC */ extern int _IO_getc (_IO_FILE *);
/* /usr/include/libio.h:452:NC */ extern int _IO_putc (int, _IO_FILE *);
/* /usr/include/libio.h:453:NC */ extern int _IO_feof (_IO_FILE *);
/* /usr/include/libio.h:454:NC */ extern int _IO_ferror (_IO_FILE *);
/* /usr/include/libio.h:456:NC */ extern int _IO_peekc_locked (_IO_FILE *);
/* /usr/include/libio.h:462:NC */ extern void _IO_flockfile (_IO_FILE *);
/* /usr/include/libio.h:463:NC */ extern void _IO_funlockfile (_IO_FILE *);
/* /usr/include/libio.h:464:NC */ extern int _IO_ftrylockfile (_IO_FILE *);
/* /usr/include/libio.h:482:NC */ extern int _IO_vfscanf (_IO_FILE *, const char *, __va_list_tag *, int *);
/* /usr/include/libio.h:484:NC */ extern int _IO_vfprintf (_IO_FILE *, const char *, __va_list_tag *);
/* /usr/include/libio.h:485:NC */ extern __ssize_t _IO_padn (_IO_FILE *, int, __ssize_t);
/* /usr/include/libio.h:486:NC */ extern size_t _IO_sgetn (_IO_FILE *, void *, size_t);
/* /usr/include/libio.h:488:NC */ extern __off64_t _IO_seekoff (_IO_FILE *, __off64_t, int, int);
/* /usr/include/libio.h:489:NC */ extern __off64_t _IO_seekpos (_IO_FILE *, __off64_t, int);
/* /usr/include/libio.h:491:NC */ extern void _IO_free_backup_area (_IO_FILE *);
/* /usr/include/stdio.h:154:NC */ extern int remove (const char *);
/* /usr/include/stdio.h:156:NC */ extern int rename (const char *, const char *);
/* /usr/include/stdio.h:171:NC */ extern FILE *tmpfile (void);
/* /usr/include/stdio.h:185:NC */ extern char *tmpnam (char *);
/* /usr/include/stdio.h:213:NC */ extern int fclose (FILE *);
/* /usr/include/stdio.h:218:NC */ extern int fflush (FILE *);
/* /usr/include/stdio.h:249:NC */ extern FILE *fopen (const char *, const char *);
/* /usr/include/stdio.h:256:NC */ extern FILE *freopen (const char *, const char *, FILE *);
/* /usr/include/stdio.h:309:NC */ extern void setbuf (FILE *, char *);
/* /usr/include/stdio.h:314:NC */ extern int setvbuf (FILE *, char *, int, size_t);
/* /usr/include/stdio.h:334:NC */ extern int fprintf (FILE *, const char *, ...);
/* /usr/include/stdio.h:339:NC */ extern int printf (const char *, ...);
/* /usr/include/stdio.h:342:NC */ extern int sprintf (char *, const char *, ...);
/* /usr/include/stdio.h:349:NC */ extern int vfprintf (FILE *, const char *, __va_list_tag *);
/* /usr/include/stdio.h:354:NC */ extern int vprintf (const char *, __va_list_tag *);
/* /usr/include/stdio.h:357:NC */ extern int vsprintf (char *, const char *, __va_list_tag *);
/* /usr/include/stdio.h:365:NC */ extern int snprintf (char *, size_t, const char *, ...);
/* /usr/include/stdio.h:369:NC */ extern int vsnprintf (char *, size_t, const char *, __va_list_tag *);
/* /usr/include/stdio.h:406:NC */ extern int fscanf (FILE *, const char *, ...);
/* /usr/include/stdio.h:411:NC */ extern int scanf (const char *, ...);
/* /usr/include/stdio.h:414:NC */ extern int sscanf (const char *, const char *, ...);
/* /usr/include/stdio.h:425:NC */ extern int vfscanf (FILE *, const char *, __va_list_tag *);
/* /usr/include/stdio.h:432:NC */ extern int vscanf (const char *, __va_list_tag *);
/* /usr/include/stdio.h:437:NC */ extern int vsscanf (const char *, const char *, __va_list_tag *);
/* /usr/include/stdio.h:447:NC */ extern int fgetc (FILE *);
/* /usr/include/stdio.h:448:NC */ extern int getc (FILE *);
/* /usr/include/stdio.h:454:NC */ extern int getchar (void);
/* /usr/include/stdio.h:489:NC */ extern int fputc (int, FILE *);
/* /usr/include/stdio.h:490:NC */ extern int putc (int, FILE *);
/* /usr/include/stdio.h:496:NC */ extern int putchar (int);
/* /usr/include/stdio.h:539:NC */ extern char *fgets (char *, int, FILE *);
/* /usr/include/stdio.h:546:NC */ extern char *gets (char *);
/* /usr/include/stdio.h:596:NC */ extern int fputs (const char *, FILE *);
/* /usr/include/stdio.h:602:NC */ extern int puts (const char *);
/* /usr/include/stdio.h:609:NC */ extern int ungetc (int, FILE *);
/* /usr/include/stdio.h:617:NC */ extern size_t fread (void *, size_t, size_t, FILE *);
/* /usr/include/stdio.h:623:NC */ extern size_t fwrite (const void *, size_t, size_t, FILE *);
/* /usr/include/stdio.h:656:NC */ extern int fseek (FILE *, long int, int);
/* /usr/include/stdio.h:661:NC */ extern long int ftell (FILE *);
/* /usr/include/stdio.h:666:NC */ extern void rewind (FILE *);
/* /usr/include/stdio.h:705:NC */ extern int fgetpos (FILE *, fpos_t *);
/* /usr/include/stdio.h:710:NC */ extern int fsetpos (FILE *, const fpos_t *);
/* /usr/include/stdio.h:733:NC */ extern void clearerr (FILE *);
/* /usr/include/stdio.h:735:NC */ extern int feof (FILE *);
/* /usr/include/stdio.h:737:NC */ extern int ferror (FILE *);
/* /usr/include/stdio.h:753:NC */ extern void perror (const char *);
/* test.c:4:NF */ extern int main (int argc, const char **argv); /* (argc, argv) int argc; const char **argv; */

此标志只适用于C代码，不过它不会给C++提供任何东西。p> ，您现在使用什么来“查看C文件…”？@terencehill Lightweight text editors，nano，gedit，等等。类似于
find-键入f-name“*.h”| xargs grep[functionName]
对此不可行？@JETM-oh此功能非常好。您现在使用什么来“查看C文件…”？@terencehill轻量级文本编辑器、nano、gedit等类似于
查找-键入f-name“*.h”| xargs grep[functionName]
不适用于此？@JETM-oh这非常有效。如果有比“这正是我要找的”更精确的短语，我会使用它。奇怪的是，g++怎么没有一个等价的。。。无论什么样的C语言再次占据优势。如果有一个短语比“这正是我所寻找的”更精确，我会使用它。奇怪的是g++没有一个等价的。。。无论什么样的C再次占据优势。
/* compiled from: . */
/* /usr/include/libio.h:413:NC */ extern int __underflow (_IO_FILE *);
/* /usr/include/libio.h:414:NC */ extern int __uflow (_IO_FILE *);
/* /usr/include/libio.h:415:NC */ extern int __overflow (_IO_FILE *, int);
/* /usr/include/libio.h:416:NC */ extern wint_t __wunderflow (_IO_FILE *);
/* /usr/include/libio.h:417:NC */ extern wint_t __wuflow (_IO_FILE *);
/* /usr/include/libio.h:418:NC */ extern wint_t __woverflow (_IO_FILE *, wint_t);
/* /usr/include/libio.h:451:NC */ extern int _IO_getc (_IO_FILE *);
/* /usr/include/libio.h:452:NC */ extern int _IO_putc (int, _IO_FILE *);
/* /usr/include/libio.h:453:NC */ extern int _IO_feof (_IO_FILE *);
/* /usr/include/libio.h:454:NC */ extern int _IO_ferror (_IO_FILE *);
/* /usr/include/libio.h:456:NC */ extern int _IO_peekc_locked (_IO_FILE *);
/* /usr/include/libio.h:462:NC */ extern void _IO_flockfile (_IO_FILE *);
/* /usr/include/libio.h:463:NC */ extern void _IO_funlockfile (_IO_FILE *);
/* /usr/include/libio.h:464:NC */ extern int _IO_ftrylockfile (_IO_FILE *);
/* /usr/include/libio.h:482:NC */ extern int _IO_vfscanf (_IO_FILE *, const char *, __va_list_tag *, int *);
/* /usr/include/libio.h:484:NC */ extern int _IO_vfprintf (_IO_FILE *, const char *, __va_list_tag *);
/* /usr/include/libio.h:485:NC */ extern __ssize_t _IO_padn (_IO_FILE *, int, __ssize_t);
/* /usr/include/libio.h:486:NC */ extern size_t _IO_sgetn (_IO_FILE *, void *, size_t);
/* /usr/include/libio.h:488:NC */ extern __off64_t _IO_seekoff (_IO_FILE *, __off64_t, int, int);
/* /usr/include/libio.h:489:NC */ extern __off64_t _IO_seekpos (_IO_FILE *, __off64_t, int);
/* /usr/include/libio.h:491:NC */ extern void _IO_free_backup_area (_IO_FILE *);
/* /usr/include/stdio.h:154:NC */ extern int remove (const char *);
/* /usr/include/stdio.h:156:NC */ extern int rename (const char *, const char *);
/* /usr/include/stdio.h:171:NC */ extern FILE *tmpfile (void);
/* /usr/include/stdio.h:185:NC */ extern char *tmpnam (char *);
/* /usr/include/stdio.h:213:NC */ extern int fclose (FILE *);
/* /usr/include/stdio.h:218:NC */ extern int fflush (FILE *);
/* /usr/include/stdio.h:249:NC */ extern FILE *fopen (const char *, const char *);
/* /usr/include/stdio.h:256:NC */ extern FILE *freopen (const char *, const char *, FILE *);
/* /usr/include/stdio.h:309:NC */ extern void setbuf (FILE *, char *);
/* /usr/include/stdio.h:314:NC */ extern int setvbuf (FILE *, char *, int, size_t);
/* /usr/include/stdio.h:334:NC */ extern int fprintf (FILE *, const char *, ...);
/* /usr/include/stdio.h:339:NC */ extern int printf (const char *, ...);
/* /usr/include/stdio.h:342:NC */ extern int sprintf (char *, const char *, ...);
/* /usr/include/stdio.h:349:NC */ extern int vfprintf (FILE *, const char *, __va_list_tag *);
/* /usr/include/stdio.h:354:NC */ extern int vprintf (const char *, __va_list_tag *);
/* /usr/include/stdio.h:357:NC */ extern int vsprintf (char *, const char *, __va_list_tag *);
/* /usr/include/stdio.h:365:NC */ extern int snprintf (char *, size_t, const char *, ...);
/* /usr/include/stdio.h:369:NC */ extern int vsnprintf (char *, size_t, const char *, __va_list_tag *);
/* /usr/include/stdio.h:406:NC */ extern int fscanf (FILE *, const char *, ...);
/* /usr/include/stdio.h:411:NC */ extern int scanf (const char *, ...);
/* /usr/include/stdio.h:414:NC */ extern int sscanf (const char *, const char *, ...);
/* /usr/include/stdio.h:425:NC */ extern int vfscanf (FILE *, const char *, __va_list_tag *);
/* /usr/include/stdio.h:432:NC */ extern int vscanf (const char *, __va_list_tag *);
/* /usr/include/stdio.h:437:NC */ extern int vsscanf (const char *, const char *, __va_list_tag *);
/* /usr/include/stdio.h:447:NC */ extern int fgetc (FILE *);
/* /usr/include/stdio.h:448:NC */ extern int getc (FILE *);
/* /usr/include/stdio.h:454:NC */ extern int getchar (void);
/* /usr/include/stdio.h:489:NC */ extern int fputc (int, FILE *);
/* /usr/include/stdio.h:490:NC */ extern int putc (int, FILE *);
/* /usr/include/stdio.h:496:NC */ extern int putchar (int);
/* /usr/include/stdio.h:539:NC */ extern char *fgets (char *, int, FILE *);
/* /usr/include/stdio.h:546:NC */ extern char *gets (char *);
/* /usr/include/stdio.h:596:NC */ extern int fputs (const char *, FILE *);
/* /usr/include/stdio.h:602:NC */ extern int puts (const char *);
/* /usr/include/stdio.h:609:NC */ extern int ungetc (int, FILE *);
/* /usr/include/stdio.h:617:NC */ extern size_t fread (void *, size_t, size_t, FILE *);
/* /usr/include/stdio.h:623:NC */ extern size_t fwrite (const void *, size_t, size_t, FILE *);
/* /usr/include/stdio.h:656:NC */ extern int fseek (FILE *, long int, int);
/* /usr/include/stdio.h:661:NC */ extern long int ftell (FILE *);
/* /usr/include/stdio.h:666:NC */ extern void rewind (FILE *);
/* /usr/include/stdio.h:705:NC */ extern int fgetpos (FILE *, fpos_t *);
/* /usr/include/stdio.h:710:NC */ extern int fsetpos (FILE *, const fpos_t *);
/* /usr/include/stdio.h:733:NC */ extern void clearerr (FILE *);
/* /usr/include/stdio.h:735:NC */ extern int feof (FILE *);
/* /usr/include/stdio.h:737:NC */ extern int ferror (FILE *);
/* /usr/include/stdio.h:753:NC */ extern void perror (const char *);
/* test.c:4:NF */ extern int main (int argc, const char **argv); /* (argc, argv) int argc; const char **argv; */