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gcc -Wall -ansi -pedantic -O2 -g -D_DEFAULT_SOURCE -o sherlock sherlock.c
sherlock.c: In function ‘listFiles’:
sherlock.c:98:30: error: ‘DT_DIR’ undeclared (first use in this function)
         if (entry->d_type == DT_DIR) {
                              ^
sherlock.c:98:30: note: each undeclared identifier is reported only once for each function it appears in
sherlock.c:116:35: error: ‘DT_REG’ undeclared (first use in this function)
         else if (entry->d_type == DT_REG) {
                                   ^
make: *** [sherlock] Error 1

gcc -Wall -ansi -pedantic -O2 -g -D_DEFAULT_SOURCE -o sherlock sherlock.c
sherlock.c: In function ‘listFiles’:
sherlock.c:95:5: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
   95 |     if (!(dir = opendir(name)))
      |     ^~
sherlock.c:98:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
   98 |  while ((entry = readdir(dir)) != NULL)

diff --git a/sherlock.c b/sherlock.c
index 501582e..08be4ca 100644
--- a/sherlock.c
+++ b/sherlock.c
@@ -92,8 +92,7 @@ void listFiles(const char *name)
     DIR *dir;
     struct dirent *entry;
 
-    if (!(dir = opendir(name)))
-        return;
+    if (!(dir = opendir(name))) return;
 
        while ((entry = readdir(dir)) != NULL) 
        {

gcc -Wall -ansi -pedantic -O2 -g -o sherlock sherlock.c
sherlock.c: In function ‘listFiles’:
sherlock.c:100:31: error: ‘DT_DIR’ undeclared (first use in this function)
          if (entry->d_type == DT_DIR) 
                               ^
sherlock.c:100:31: note: each undeclared identifier is reported only once for each function it appears in
sherlock.c:120:36: error: ‘DT_REG’ undeclared (first use in this function)
          else if (entry->d_type == DT_REG) 
                                    ^
makefile:9: recipe for target 'sherlock' failed
make: *** [sherlock] Error 1