+static void parse_integer_suffix(void)
+{
+ if(c == 'U' || c == 'u') {
+ next_char();
+ if(c == 'L' || c == 'l') {
+ next_char();
+ if(c == 'L' || c == 'l') {
+ next_char();
+ lexer_token.datatype = type_ulonglong;
+ } else {
+ lexer_token.datatype = type_ulong;
+ }
+ } else {
+ lexer_token.datatype = type_uint;
+ }
+ } else if(c == 'l' || c == 'L') {
+ next_char();
+ if(c == 'l' || c == 'L') {
+ next_char();
+ if(c == 'u' || c == 'U') {
+ next_char();
+ lexer_token.datatype = type_ulonglong;
+ } else {
+ lexer_token.datatype = type_longlong;
+ }
+ } else if(c == 'u' || c == 'U') {
+ next_char();
+ lexer_token.datatype = type_ulong;
+ } else {
+ lexer_token.datatype = type_int;
+ }
+ } else {
+ lexer_token.datatype = type_int;
+ }
+}
+
+static void parse_floating_suffix(void)
+{
+ switch(c) {
+ /* TODO: do something usefull with the suffixes... */
+ case 'f':
+ case 'F':
+ next_char();
+ lexer_token.datatype = type_float;
+ break;
+ case 'l':
+ case 'L':
+ next_char();
+ lexer_token.datatype = type_longdouble;
+ break;
+ default:
+ lexer_token.datatype = type_double;
+ break;
+ }
+}
+
+/**
+ * A replacement for strtoull. Only those parts needed for
+ * our parser are implemented.
+ */
+static unsigned long long parse_int_string(const char *s, const char **endptr, int base) {
+ unsigned long long v = 0;
+
+ switch (base) {
+ case 16:
+ for (;; ++s) {
+ /* check for overrun */
+ if (v >= 0x1000000000000000ULL)
+ break;
+ switch (tolower(*s)) {
+ case '0': v <<= 4; break;
+ case '1': v <<= 4; v |= 0x1; break;
+ case '2': v <<= 4; v |= 0x2; break;
+ case '3': v <<= 4; v |= 0x3; break;
+ case '4': v <<= 4; v |= 0x4; break;
+ case '5': v <<= 4; v |= 0x5; break;
+ case '6': v <<= 4; v |= 0x6; break;
+ case '7': v <<= 4; v |= 0x7; break;
+ case '8': v <<= 4; v |= 0x8; break;
+ case '9': v <<= 4; v |= 0x9; break;
+ case 'a': v <<= 4; v |= 0xa; break;
+ case 'b': v <<= 4; v |= 0xb; break;
+ case 'c': v <<= 4; v |= 0xc; break;
+ case 'd': v <<= 4; v |= 0xd; break;
+ case 'e': v <<= 4; v |= 0xe; break;
+ case 'f': v <<= 4; v |= 0xf; break;
+ default:
+ goto end;
+ }
+ }
+ break;
+ case 8:
+ for (;; ++s) {
+ /* check for overrun */
+ if (v >= 0x2000000000000000ULL)
+ break;
+ switch (tolower(*s)) {
+ case '0': v <<= 3; break;
+ case '1': v <<= 3; v |= 1; break;
+ case '2': v <<= 3; v |= 2; break;
+ case '3': v <<= 3; v |= 3; break;
+ case '4': v <<= 3; v |= 4; break;
+ case '5': v <<= 3; v |= 5; break;
+ case '6': v <<= 3; v |= 6; break;
+ case '7': v <<= 3; v |= 7; break;
+ default:
+ goto end;
+ }
+ }
+ break;
+ case 10:
+ for (;; ++s) {
+ /* check for overrun */
+ if (v > 0x1999999999999999ULL)
+ break;
+ switch (tolower(*s)) {
+ case '0': v *= 10; break;
+ case '1': v *= 10; v += 1; break;
+ case '2': v *= 10; v += 2; break;
+ case '3': v *= 10; v += 3; break;
+ case '4': v *= 10; v += 4; break;
+ case '5': v *= 10; v += 5; break;
+ case '6': v *= 10; v += 6; break;
+ case '7': v *= 10; v += 7; break;
+ case '8': v *= 10; v += 8; break;
+ case '9': v *= 10; v += 9; break;
+ default:
+ goto end;
+ }
+ }
+ break;
+ default:
+ assert(0);
+ break;
+ }
+end:
+ *endptr = s;
+ return v;
+}
+
+static void parse_number_hex(void)