talloc: Make it compile with MSVC, MinGW, and Xcode/gcc4.0.

[mesa.git] / src / talloc / talloc.c

diff --git a/src/talloc/talloc.c b/src/talloc/talloc.c
index 7beda4b0f587b69c0f549eb76d2935f1d4413d55..cc01346a7f0d24a1c8620894a2e9383bf23f7714 100644 (file)
--- a/src/talloc/talloc.c
+++ b/src/talloc/talloc.c
@@ -30,8 +30,38 @@
   inspired by http://swapped.cc/halloc/
 */
 
-#include "replace.h"
 #include "talloc.h"
+#include <string.h>
+
+#define TALLOC_MIN(a,b) ((a)<(b)?(a):(b))
+
+/* Visual C++ 2008 compatibility */
+#if defined(_MSC_VER) && !defined(_cplusplus)
+typedef size_t ssize_t;
+#define inline __inline
+#endif
+
+/* Xcode/gcc4.0 compatibility */
+#if defined(__APPLE__) || defined(__MINGW32__)
+static size_t strnlen (const char* s, size_t n)
+{
+       size_t i;
+       for (i = 0; i < n; ++i)
+       {
+               if (s[i] == '\0')
+                       break;
+       }
+       return i;
+}
+#endif
+
+/* Visual C++ 2008 & Xcode/gcc4.0 compatibility */
+#if !defined(_cplusplus) && (defined(WIN32) || defined(__APPLE__))
+typedef int bool;
+#define false 0
+#define true 1
+#endif
+
 
 #ifdef TALLOC_BUILD_VERSION_MAJOR
 #if (TALLOC_VERSION_MAJOR != TALLOC_BUILD_VERSION_MAJOR)
@@ -1200,7 +1230,7 @@ void *_talloc_realloc(const void *context, void *ptr, size_t size, const char *n
                }
 
                if (new_ptr) {
-                       memcpy(new_ptr, tc, MIN(tc->size,size) + TC_HDR_SIZE);
+                       memcpy(new_ptr, tc, TALLOC_MIN(tc->size,size) + TC_HDR_SIZE);
                }
        }
        else {
@@ -1686,7 +1716,7 @@ char *talloc_strndup_append_buffer(char *s, const char *a, size_t n)
        return __talloc_strlendup_append(s, slen, a, strnlen(a, n));
 }
 
-#ifndef HAVE_VA_COPY
+#ifndef va_copy
 #ifdef HAVE___VA_COPY
 #define va_copy(dest, src) __va_copy(dest, src)
 #else
@@ -1703,7 +1733,12 @@ char *talloc_vasprintf(const void *t, const char *fmt, va_list ap)
 
        /* this call looks strange, but it makes it work on older solaris boxes */
        va_copy(ap2, ap);
+       #ifdef _MSC_VER
+       /* MSVC runtime needs to use _vcsprintf to return buffer size; vsnprintf would return -1 */
+       len = _vscprintf(fmt, ap2);
+       #else
        len = vsnprintf(&c, 1, fmt, ap2);
+       #endif
        va_end(ap2);
        if (unlikely(len < 0)) {
                return NULL;
@@ -1748,7 +1783,12 @@ static inline char *__talloc_vaslenprintf_append(char *s, size_t slen,
        char c;
 
        va_copy(ap2, ap);
+       #ifdef _MSC_VER
+       /* MSVC runtime needs to use _vcsprintf to return buffer size; vsnprintf would return -1 */
+       alen = _vscprintf(fmt, ap2);
+       #else
        alen = vsnprintf(&c, 1, fmt, ap2);
+       #endif
        va_end(ap2);
 
        if (alen <= 0) {