gcc/c-family/c-cppbuiltin.c

236      The only macro we care about is this number for the widest supported
922 	 support GNU VLAs.  Let's define this macro to a low number
995 	  /* Old macro, superseded by
1359       /* Despite the name of this target macro, the expansion is not
1440      The macro names and values here were chosen for compatibility with an
1496 /* Pass an object-like macro.  If it doesn't lie in the user's
1506 builtin_define_std (const char *macro)
1508   size_t len = strlen (macro);
1514   memcpy (p, macro, len + 1);
1527       /* Define the macro with leading and following __.  */
1535       /* Finally, define the original macro if permitted.  */
1537 	cpp_define (parse_in, macro);
1541 /* Pass an object-like macro and a value to define it to.  The third
1545 builtin_define_with_value (const char *macro, const char *expansion, int is_str)
1548   size_t mlen = strlen (macro);
1599     sprintf (buf, "%s=\"%s\"", macro, expansion);
1601     sprintf (buf, "%s=%s", macro, expansion);
1607 /* Pass an object-like macro and an integer value to define it to.  */
1609 builtin_define_with_int_value (const char *macro, HOST_WIDE_INT value)
1612   size_t mlen = strlen (macro);
1617   memcpy (buf, macro, mlen);
1646 lazy_hex_fp_value (cpp_reader *, cpp_macro *macro, unsigned num)
1661   for (unsigned idx = 0; idx < macro->count; idx++)
1662     if (macro->exp.tokens[idx].type == CPP_NUMBER)
1664 	macro->exp.tokens[idx].val.str.len = len;
1665 	macro->exp.tokens[idx].val.str.text
1674 /* Pass an object-like macro a hexadecimal floating-point value.  */
1676 builtin_define_with_hex_fp_value (const char *macro,
1694       sprintf (buf1, "%s=%s", macro, buf2);
1696       struct cpp_hashnode *node = C_CPP_HASHNODE (get_identifier (macro));
1720   /* Assemble the macro in the following fashion
1721      macro = fp_cast [dec_str fp_suffix] */
1724   sprintf (buf, "%s=%s", macro, buf1);
1769 /* Define MACRO as a <stdint.h> constant-suffix macro for TYPE.  */
1771 builtin_define_constants (const char *macro, tree type)
1780       buf = (char *) alloca (strlen (macro) + 6);
1781       sprintf (buf, "%s(c)=c", macro);
1785       buf = (char *) alloca (strlen (macro) + 9 + strlen (suffix) + 1);
1786       sprintf (buf, "%s(c)=c ## %s", macro, suffix);
1795 builtin_define_type_max (const char *macro, tree type)
1797   builtin_define_type_minmax (NULL, macro, type);