isadir

C

Public Domain

Tests whether a given path is a directory (or a symlink to a directory)

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C directory file files filesystem POSIX 
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#include <sys/stat.h>

/* Returns 1 if the path is a directory or directory symlink, 0 if it's not, -1 on error */
int isadir(const char* path) {
 struct stat dat;
 return stat(path, &dat) == 0 ? S_ISDIR(dat.st_mode) : -1;
}