Mercurial > ecos
diff packages/language/c/libc/string/current/tests/strncpy1.c @ 115:6ed91473a1cd ecos-sw-2000-08-21
Merge from eCos master repository on 2000-08-21-22:40:54-BST
| author | jlarmour |
|---|---|
| date | Fri, 25 Aug 2000 17:32:38 +0000 |
| parents | |
| children | e0c0827131d1 |
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new file mode 100644 --- /dev/null +++ b/packages/language/c/libc/string/current/tests/strncpy1.c @@ -0,0 +1,153 @@ +//================================================================= +// +// strncpy1.c +// +// Testcase for C library strncpy() +// +//================================================================= +//####COPYRIGHTBEGIN#### +// +// ------------------------------------------- +// The contents of this file are subject to the Red Hat eCos Public License +// Version 1.1 (the "License"); you may not use this file except in +// compliance with the License. You may obtain a copy of the License at +// http://www.redhat.com/ +// +// Software distributed under the License is distributed on an "AS IS" +// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +// License for the specific language governing rights and limitations under +// the License. +// +// The Original Code is eCos - Embedded Configurable Operating System, +// released September 30, 1998. +// +// The Initial Developer of the Original Code is Red Hat. +// Portions created by Red Hat are +// Copyright (C) 1998, 1999, 2000 Red Hat, Inc. +// All Rights Reserved. +// ------------------------------------------- +// +//####COPYRIGHTEND#### +//================================================================= +//#####DESCRIPTIONBEGIN#### +// +// Author(s): ctarpy, jlarmour +// Contributors: +// Date: 2000-04-30 +// Description: Contains testcode for C library strncpy() function +// +// +//####DESCRIPTIONEND#### + +// INCLUDES + +#include <string.h> +#include <cyg/infra/testcase.h> + + +// FUNCTIONS + +// Functions to avoid having to use libc strings + +static int my_strlen(const char *s) +{ + const char *ptr; + + ptr = s; + for ( ptr=s ; *ptr != '\0' ; ptr++ ) + ; + + return (int)(ptr-s); +} // my_strlen() + + +static int my_strncmp(const char *s1, const char *s2, size_t n) +{ + if (n==0) + return 0; + + while (n-- != 0 && *s1 == *s2) + { + if (n == 0 || *s1 == '\0' || *s2 == '\0') + break; + s1++; + s2++; + } + + return (*s1 - *s2); +} // my_strncmp() + + +static int my_strcmp(const char *s1, const char *s2) +{ + for ( ; *s1 == *s2 ; s1++,s2++ ) + { + if ( *s1 == '\0' ) + break; + } // for + + return (*s1 - *s2); +} // my_strcmp() + + +static char *my_strcpy(char *s1, const char *s2) +{ + while (*s2 != '\0') { + *(s1++) = *(s2++); + } + *s1 = '\0'; + + return s1; +} // my_strcpy() + + +int +main( int argc, char *argv[] ) +{ + char x[300]; + char y[300]; + char *ret; + + CYG_TEST_INIT(); + + CYG_TEST_INFO("Starting tests from testcase " __FILE__ " for C library " + "strncpy() function"); + CYG_TEST_INFO("This testcase provides simple basic tests"); + + // Check 1 + my_strcpy(x, "Nine rings for men doomed to die"); + ret = strncpy(y, "Nine rings for men doomed to die", my_strlen(x)); + CYG_TEST_PASS_FAIL( (my_strncmp(x, y, my_strlen(x)) == 0), + "Simple copy" ); + // Check return value + CYG_TEST_PASS_FAIL( (y == ret), "Simple copy return value" ); + + + // Check 2 + my_strcpy(x, ""); + my_strcpy(y, "Seven rings for the dwarves in their halls of stone"); + ret = strncpy(y, x, 1); + CYG_TEST_PASS_FAIL( (my_strcmp(y, "") == 0), "Copy empty string" ); + // Check return value + CYG_TEST_PASS_FAIL( (y == ret), "Copy empty string return value" ); + + // Check 3 + my_strcpy(x, ""); + my_strcpy(y, "Seven rings for the dwarves in their halls of stone"); + ret = strncpy(y, x, 0); + if (my_strcmp(y, "Seven rings for the dwarves " + "in their halls of stone") == 0) + CYG_TEST_PASS("Copy 0 characters"); + else + CYG_TEST_FAIL("Copy 0 characters"); + // Check return value + CYG_TEST_PASS_FAIL( (y == ret), "Copy empty string return value" ); + +// CYG_TEST_NA("Testing is not applicable to this configuration"); + + CYG_TEST_FINISH("Finished tests from testcase " __FILE__ " for C library " + "strncpy() function"); + +} // main() + +// EOF strncpy1.c
