1 files changed, 119 insertions, 0 deletions
diff --git a/libs/predef/check/predef_check_as_c.c b/libs/predef/check/predef_check_as_c.c
new file mode 100644
index 000000000..dcb7d6aa3
--- /dev/null
+++ b/libs/predef/check/predef_check_as_c.c
@@ -0,0 +1,119 @@
+/*
+Copyright Rene Rivera 2011-2015
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define BOOST_PREDEF_INTERNAL_GENERATE_TESTS
+
+typedef struct predef_info
+{
+    unsigned tag;
+    const char * name;
+    const char * description;
+    unsigned value;
+} predef_info;
+
+predef_info first_predef_info = { 0x43210DEF , "-" , "-" , 0xFFFFFFFF };
+
+#define BOOST_PREDEF_DECLARE_TEST(x,s) \
+    predef_info x##_predef_info = { 0x67890DEF , #x , s , x };
+#include <boost/predef.h>
+
+predef_info last_predef_info = { 0xFFFFFFFF , "-" , "-" , 0x43210DEF };
+
+int predef_info_compare(const void * a, const void * b)
+{
+    const predef_info ** i = (const predef_info **)a;
+    const predef_info ** j = (const predef_info **)b;
+    return strcmp((*i)->name,(*j)->name);
+}
+
+const char * str_token(const char ** str, const char * space)
+{
+    unsigned span;
+    char * token;
+    for (; **str != 0; *str += 1)
+    {
+        if (0 == strchr(space, **str))
+        {
+            break;
+        }
+    }
+    span = strcspn(*str, space);
+    token = (char *)malloc(span+1);
+    strncpy(token, *str, span);
+    token[span] = 0;
+    for (*str += span; **str != 0; *str += 1)
+    {
+        if (0 == strchr(space, **str))
+        {
+            break;
+        }
+    }
+    return token;
+}
+
+const char * whitespace = " ";
+const char * dot = ".";
+
+int main(int argc, const char ** argv)
+{
+    unsigned x = 0;
+    int argi = 1;
+    predef_info ** predefs = 0;
+    unsigned predef_count = 0;
+    unsigned * i = &first_predef_info.tag;
+    unsigned * e = &last_predef_info.tag;
+    while (i < e)
+    {
+        i += 1;
+        if (*i == 0x67890DEF)
+        {
+            predef_count += 1;
+            predefs = (predef_info**)realloc(predefs,predef_count*sizeof(predef_info*));
+            predefs[predef_count-1] = (predef_info*)i;
+        }
+    }
+    qsort(predefs,predef_count,sizeof(predef_info*),predef_info_compare);
+    for (argi = 1; argi < argc; ++argi)
+    {
+        const char * exp = argv[argi];
+        const char * exp_name = str_token(&exp, whitespace);
+        const char * exp_op = str_token(&exp, whitespace);
+        const char * exp_val = str_token(&exp, whitespace);
+        unsigned exp_version = 0;
+        if (*exp_val != 0)
+        {
+            exp = exp_val;
+            const char * exp_val_a = str_token(&exp, dot);
+            const char * exp_val_b = str_token(&exp, dot);
+            const char * exp_val_c = str_token(&exp, dot);
+            exp_version = BOOST_VERSION_NUMBER(atoi(exp_val_a), atoi(exp_val_b),atoi(exp_val_c));
+        }
+        for (x = 0; x < predef_count; ++x)
+        {
+            if (*exp_op == 0 &&
+                predefs[x]->value == 0 &&
+                strcmp(exp_name, predefs[x]->name) == 0)
+            {
+                return argi;
+            }
+            else if (*exp_op != 0 && *exp_val != 0 &&
+                     strcmp(exp_name, predefs[x]->name) == 0)
+            {
+                if (0 == strcmp(">",exp_op) && !(predefs[x]->value > exp_version)) return argi;
+                if (0 == strcmp("<",exp_op) && !(predefs[x]->value < exp_version)) return argi;
+                if (0 == strcmp(">=",exp_op) && !(predefs[x]->value >= exp_version)) return argi;
+                if (0 == strcmp("<=",exp_op) && !(predefs[x]->value <= exp_version)) return argi;
+                if (0 == strcmp("==",exp_op) && !(predefs[x]->value == exp_version)) return argi;
+                if (0 == strcmp("!=",exp_op) && !(predefs[x]->value != exp_version)) return argi;
+            }
+        }
+    }
+    return 0;
+}