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authortcsullivan <tullivan99@gmail.com>2018-11-17 13:02:57 -0500
committertcsullivan <tullivan99@gmail.com>2018-11-17 13:02:57 -0500
commitc6ef89664b8c0d7aa85bddd5c7014aa6df82cbe7 (patch)
treed1f9d09412a46bdf4344fe30392455070a72993d /src/pdclib/functions/string/strcmp.c
parentdb38c4b9dac461de0ed75bf6d079dacba1b31bc9 (diff)
added pdclib, removed sash
Diffstat (limited to 'src/pdclib/functions/string/strcmp.c')
-rw-r--r--src/pdclib/functions/string/strcmp.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/src/pdclib/functions/string/strcmp.c b/src/pdclib/functions/string/strcmp.c
new file mode 100644
index 0000000..639fc10
--- /dev/null
+++ b/src/pdclib/functions/string/strcmp.c
@@ -0,0 +1,41 @@
+/* strcmp( const char *, const char * )
+
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <string.h>
+
+#ifndef REGTEST
+
+int strcmp( const char * s1, const char * s2 )
+{
+ while ( ( *s1 ) && ( *s1 == *s2 ) )
+ {
+ ++s1;
+ ++s2;
+ }
+ return ( *(unsigned char *)s1 - *(unsigned char *)s2 );
+}
+
+#endif
+
+#ifdef TEST
+
+#include "_PDCLIB_test.h"
+
+int main( void )
+{
+ char cmpabcde[] = "abcde";
+ char cmpabcd_[] = "abcd\xfc";
+ char empty[] = "";
+ TESTCASE( strcmp( abcde, cmpabcde ) == 0 );
+ TESTCASE( strcmp( abcde, abcdx ) < 0 );
+ TESTCASE( strcmp( abcdx, abcde ) > 0 );
+ TESTCASE( strcmp( empty, abcde ) < 0 );
+ TESTCASE( strcmp( abcde, empty ) > 0 );
+ TESTCASE( strcmp( abcde, cmpabcd_ ) < 0 );
+ return TEST_RESULTS;
+}
+
+#endif