417cced042
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1422 ec53bebd-3082-4978-b11e-865c3cabbd6b
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
#ifdef HAVE_CONFIG_H
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#include <config.h>
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RCSID("$Id$");
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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void strupr(char *s)
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{
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char *p = s;
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while(*p){
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if(islower(*p))
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*p = toupper(*p);
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p++;
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}
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}
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#define BITSIZE(TYPE) \
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{ \
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int b = 0; TYPE x = 1, zero = 0; char *pre = "u_"; \
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char tmp[128], tmp2[128]; \
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while(x){ x <<= 1; b++; if(x < zero) pre=""; } \
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if(b >= len){ \
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int tabs; \
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sprintf(tmp, "%sint%d_t" , pre, len); \
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sprintf(tmp2, "typedef %s %s;", #TYPE, tmp); \
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strupr(tmp); \
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tabs = 5 - strlen(tmp2) / 8; \
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fprintf(f, "#ifndef HAVE_%s\n", tmp); \
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fprintf(f, "#define HAVE_%s\n", tmp); \
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fprintf(f, "%s", tmp2); \
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while(tabs-- > 0) fprintf(f, "\t"); \
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fprintf(f, "/* %2d bits */\n", b); \
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fprintf(f, "#endif /* HAVE_%s */\n", tmp); \
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continue; \
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} \
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}
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int main(int argc, char **argv)
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{
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int i, b, len;
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FILE *f;
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int sizes[] = { 8, 16, 32, 64 };
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if(argc < 2)
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f = stdout;
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else
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f = fopen(argv[1], "w");
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fprintf(f, "/*\n");
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fprintf(f, " * bits.h -- this file was generated for %s\n", HOST);
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fprintf(f, " */\n\n");
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fprintf(f, "#ifndef __BITS_H__\n");
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fprintf(f, "#define __BITS_H__\n");
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fprintf(f, "\n");
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fprintf(f, "/* For compatibility with various type definitions */\n");
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fprintf(f, "#ifndef __BIT_TYPES_DEFINED__\n");
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fprintf(f, "#define __BIT_TYPES_DEFINED__\n");
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fprintf(f, "\n");
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for(i = 0; i < sizeof(sizes) / sizeof(sizes[0]); i++){
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len = sizes[i];
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BITSIZE(char);
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BITSIZE(short);
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BITSIZE(int);
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BITSIZE(long);
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#ifdef HAVE_LONG_LONG
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BITSIZE(long long);
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#endif
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fprintf(f, "/* There is no %d bit type */\n", len);
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break;
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}
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fprintf(f, "\n");
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for(i = 0; i < sizeof(sizes) / sizeof(sizes[0]); i++){
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len = sizes[i];
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BITSIZE(unsigned char);
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BITSIZE(unsigned short);
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BITSIZE(unsigned int);
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BITSIZE(unsigned long);
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#ifdef HAVE_LONG_LONG
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BITSIZE(unsigned long long);
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#endif
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fprintf(f, "/* There is no %d bit type */\n", len);
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break;
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}
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fprintf(f, "\n");
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fprintf(f, "#endif /* __BIT_TYPES_DEFINED__ */\n");
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fprintf(f, "\n");
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fprintf(f, "#endif /* __BITS_H__ */\n");
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return 0;
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}
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