Changeset 2130 for trunk/src/emx/include/string.h

Timestamp:

Jul 1, 2005, 4:42:35 AM (20 years ago)

Author:

bird

Message:

o Added the strdupa() and strndupa() GLIBC extensions. These are macros

use alloca() to allocate the memory for the string.

File:

• trunk/src/emx/include/string.h (modified) (1 diff, 1 prop)

trunk/src/emx/include/string.h

@@ -184 +184 @@
 void    *__rawmemchr(const void *, int);
 
+#define strdupa(psz) \
+    (__extension__({ \
+        __const__ char *__pszInput = (psz); \
+        size_t          __cchInput = strlen(__pszInput) + 1; \
+        char           *__pszReturn = __builtin_alloca(__cchInput); \
+        (char *)memcpy(__pszReturn, __pszInput, __cchInput); \
+    }))
+
+#define strndupa(psz, cch) \
+    (__extension__({ \
+        __const__ char *__pszInput = (psz); \
+        size_t          __cchInput = strnlen(__pszInput, (cch)); \
+        char           *__pszReturn = __builtin_alloca(__cchInput + 1); \
+        __pszReturn[__cchInput] = '\0'; \
+        (char *)memcpy(__pszReturn, __pszInput, __cchInput); \
+    }))
+
 #endif
 /* bird: GNU stuff - end */