isl_union_map_sample: don't return NULL on empty input
[isl.git] / cat.c
blobf278e9c5af460d1b9bb942c2164d6e6ec0c3ef3a
1 #include <assert.h>
2 #include <isl/obj.h>
3 #include <isl/printer.h>
4 #include <isl/stream.h>
6 struct isl_arg_choice cat_format[] = {
7 {"isl", ISL_FORMAT_ISL},
8 {"omega", ISL_FORMAT_OMEGA},
9 {"polylib", ISL_FORMAT_POLYLIB},
10 {"ext-polylib", ISL_FORMAT_EXT_POLYLIB},
11 {"latex", ISL_FORMAT_LATEX},
12 {0}
15 struct cat_options {
16 struct isl_options *isl;
17 unsigned format;
20 struct isl_arg cat_options_arg[] = {
21 ISL_ARG_CHILD(struct cat_options, isl, "isl", isl_options_arg, "isl options")
22 ISL_ARG_CHOICE(struct cat_options, format, 0, "format", \
23 cat_format, ISL_FORMAT_ISL, "output format")
24 ISL_ARG_END
27 ISL_ARG_DEF(cat_options, struct cat_options, cat_options_arg)
29 int main(int argc, char **argv)
31 struct isl_ctx *ctx;
32 struct isl_stream *s;
33 struct isl_obj obj;
34 struct cat_options *options;
35 isl_printer *p;
37 options = cat_options_new_with_defaults();
38 assert(options);
39 argc = cat_options_parse(options, argc, argv, ISL_ARG_ALL);
41 ctx = isl_ctx_alloc_with_options(cat_options_arg, options);
43 s = isl_stream_new_file(ctx, stdin);
44 obj = isl_stream_read_obj(s);
45 isl_stream_free(s);
47 p = isl_printer_to_file(ctx, stdout);
48 p = isl_printer_set_output_format(p, options->format);
49 p = obj.type->print(p, obj.v);
50 p = isl_printer_end_line(p);
51 isl_printer_free(p);
53 obj.type->free(obj.v);
55 isl_ctx_free(ctx);
57 return 0;