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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@880 ec53bebd-3082-4978-b11e-865c3cabbd6b
1996-10-22 22:32:57 +00:00
parent 190fed0b4e
commit b96bc32e40
8 changed files with 153 additions and 20 deletions
--- a/include/bits.c
+++ b/include/bits.c
@@ -0,0 +1,76 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+RCSID("$Id$");
+#endif
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+void strupr(char *s)
+{
+    char *p = s;
+    while(*p){
+	if(islower(*p))
+	    *p = toupper(*p);
+	p++;
+    }	
+}
+
+
+#define BITSIZE(TYPE)						\
+{								\
+    int b = 0; TYPE x = 1; char *pre = "u_";			\
+    char tmp[128], tmp2[128];					\
+    while(x){ x <<= 1; b++; if(x < 0) pre=""; }			\
+    if(b >= len){						\
+        int tabs;						\
+	sprintf(tmp, "%sint%d_t" , pre, len);			\
+	sprintf(tmp2, "typedef %s %s;", #TYPE, tmp);		\
+	strupr(tmp);						\
+	tabs = 5 - strlen(tmp2) / 8;				\
+	printf("#ifndef HAVE_%s\n", tmp);			\
+	printf("#define HAVE_%s\n", tmp);			\
+        printf("%s", tmp2);					\
+	while(tabs-- > 0) printf("\t");				\
+	printf("/* %2d bits */\n", b);				\
+	printf("#endif /* HAVE_%s */\n", tmp);			\
+	continue;						\
+    }								\
+}
+
+int main()
+{
+    int i, b, len;
+    int sizes[] = { 8, 16, 32, 64 };
+    printf("#ifndef __BITS_H__\n");
+    printf("#define __BITS_H__\n");
+    printf("\n");
+    for(i = 0; i < sizeof(sizes) / sizeof(sizes[0]); i++){
+	len = sizes[i];
+	BITSIZE(char);
+	BITSIZE(short);
+	BITSIZE(int);
+	BITSIZE(long);
+#ifdef HAVE_LONG_LONG
+	BITSIZE(long long);
+#endif
+	printf("/* There is no %d bit type */\n", len);
+	break;
+    }
+    printf("\n");
+    for(i = 0; i < sizeof(sizes) / sizeof(sizes[0]); i++){
+	len = sizes[i];
+	BITSIZE(unsigned char);
+	BITSIZE(unsigned short);
+	BITSIZE(unsigned int);
+	BITSIZE(unsigned long);
+#ifdef HAVE_LONG_LONG
+	BITSIZE(unsigned long long);
+#endif
+	printf("/* There is no %d bit type */\n", len);
+	break;
+    }
+    printf("\n");
+    printf("#endif /* __BITS_H__ */\n");
+    return 0;
+}