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- /* Listing 4, printf.c, version 1 */
- #include <stdarg.h>
- #include <stdio.h>
- #include <string.h>
-
- #include "check.h" /* Listing 1 */
- #include "printf.h" /* Listing 3 */
-
- const char srcCall[] =
- "int printf(const char format[],...)";
-
- int DB_printf( const char format[], ... )
- {
- va_list ap;
- int returnValue;
-
- UNDEFINED_IF(format == NULL);
- WARNING_IF(strchr(format, '%') == NULL);
- WARNING_IF(strstr(format, "%ul") != NULL);
- WARNING_IF(strstr(format, "%p") != NULL);
- va_start(ap, format);
- returnValue = vprintf(format, ap);
- va_end(ap);
- WARNING_IF(returnValue < 0);
- return returnValue;
- }
-
-