X-Git-Url: https://pd.if.org/git/?p=lice;a=blobdiff_plain;f=opt.c;fp=opt.c;h=c11e866c4e06498ce36f7f85c7bf3995a0364ab6;hp=0000000000000000000000000000000000000000;hb=686688990cde8ecd8d9423fde7f88b6ac6ac8a40;hpb=e8938573442eb3f5f550420ff3a0eb703730c1a3

diff --git a/opt.c b/opt.c
new file mode 100644
index 0000000..c11e866
--- /dev/null
+++ b/opt.c
@@ -0,0 +1,53 @@
+#include "opt.h"
+
+static const opt_extension_t opt_extension_matrix[] = {
+    /*
+     * same as GNUC but no dollar identifiers, they don't make much sense
+     * and in C11 mode, opposed to GNUC which is C99
+     */
+    [STANDARD_LICEC] = EXTENSION_TYPEOF          | EXTENSION_OMITOPCOND      |
+                       EXTENSION_STATEMENTEXPRS  | EXTENSION_NOMEMBERSTRUCT  |
+                       EXTENSION_CASERANGES      | EXTENSION_ESCCHAR         |
+                       EXTENSION_INCOMPLETEENUM  | EXTENSION_BINARYCONSTANTS |
+                       EXTENSION_ARITHMETICVOID  | EXTENSION_LABELASVALUES   |
+                       EXTENSION_ZEROARRAYS      | EXTENSION_ZEROARRAYS      |
+                       EXTENSION_NONCONSTINIT    | EXTENSION_NONSTANDARD,
+
+    /*
+     * standard GNUC format, TODO: -std=gnuc90, which is the same as this
+     * but C90, instead of C90
+     */
+    [STANDARD_GNUC]  = EXTENSION_TYPEOF          | EXTENSION_OMITOPCOND      |
+                       EXTENSION_STATEMENTEXPRS  | EXTENSION_NOMEMBERSTRUCT  |
+                       EXTENSION_CASERANGES      | EXTENSION_ESCCHAR         |
+                       EXTENSION_INCOMPLETEENUM  | EXTENSION_BINARYCONSTANTS |
+                       EXTENSION_ARITHMETICVOID  | EXTENSION_LABELASVALUES   |
+                       EXTENSION_ZEROARRAYS      | EXTENSION_ZEROARRAYS      |
+                       EXTENSION_NONCONSTINIT    | EXTENSION_DOLLAR          |
+                       EXTENSION_NONSTANDARD,
+
+    [STANDARD_C90]   = 0,
+    [STANDARD_C99]   = 0,
+    [STANDARD_C11]   = 0
+};
+
+static opt_std_t       standard   = STANDARD_LICEC;
+static opt_extension_t extensions = ~0;
+
+bool opt_std_test(opt_std_t std) {
+    return (standard == std);
+}
+
+bool opt_extension_test(opt_extension_t ext) {
+    return (extensions & ext);
+}
+
+void opt_std_set(opt_std_t std) {
+    standard   = std;
+    extensions = opt_extension_matrix[std];
+}
+
+void opt_extension_set(opt_extension_t ext) {
+    if (opt_extension_matrix[standard] & ext)
+        extensions &= ext;
+}