Namespace cleanliness: Rename all ***_unlocked functions to _PDCLIB_***_unlocked.

[pdclib.old] / functions / stdio / fgetc.c

diff --git a/functions/stdio/fgetc.c b/functions/stdio/fgetc.c
index 900cd0a12181a2f7f3e53df03d3538a53952a0b3..114ab975e2e9b928e7154bd04a41ca7ce2ae4697 100644 (file)
--- a/functions/stdio/fgetc.c
+++ b/functions/stdio/fgetc.c
@@ -9,11 +9,28 @@
 #include <stdio.h>
 
 #ifndef REGTEST
+#include <_PDCLIB_io.h>
 
-int fgetc( struct _PDCLIB_file_t * stream )
+int _PDCLIB_fgetc_unlocked( FILE * stream )
 {
-    /* TODO: Implement. */
-    return 0;
+    if ( _PDCLIB_prepread( stream ) == EOF )
+    {
+        return EOF;
+    }
+
+    char c;
+
+    size_t n = _PDCLIB_getchars( &c, 1, EOF, stream );
+
+    return n == 0 ? EOF : (unsigned char) c;
+}
+
+int fgetc( FILE * stream )
+{
+    _PDCLIB_flockfile( stream );
+    int c = _PDCLIB_fgetc_unlocked( stream );
+    _PDCLIB_funlockfile( stream );
+    return c;
 }
 
 #endif
@@ -23,7 +40,7 @@ int fgetc( struct _PDCLIB_file_t * stream )
 
 int main( void )
 {
-    TESTCASE( NO_TESTDRIVER );
+    /* Testing covered by ftell.c */
     return TEST_RESULTS;
 }