This patch adds a dump () method so that it's easier to read the contents of the various wide-int types in gdb. I've deliberately not done any extension for "small_prec" cases because I think here we want to see the raw values as much as possible.
Tested on x86_64-linux-gnu. OK to install? Thanks, Richard Index: gcc/wide-int.cc =================================================================== --- gcc/wide-int.cc 2014-04-25 14:48:03.263213403 +0100 +++ gcc/wide-int.cc 2014-04-25 14:48:25.186333842 +0100 @@ -2130,3 +2130,9 @@ wi::only_sign_bit_p (const wide_int_ref void gt_ggc_mx (widest_int *) { } void gt_pch_nx (widest_int *, void (*) (void *, void *), void *) { } void gt_pch_nx (widest_int *) { } + +template void wide_int::dump () const; +template void generic_wide_int <wide_int_ref_storage <false> >::dump () const; +template void generic_wide_int <wide_int_ref_storage <true> >::dump () const; +template void offset_int::dump () const; +template void widest_int::dump () const; Index: gcc/wide-int.h =================================================================== --- gcc/wide-int.h 2014-04-25 14:34:54.823652619 +0100 +++ gcc/wide-int.h 2014-04-25 14:48:06.218229309 +0100 @@ -709,6 +709,9 @@ #define INCDEC_OPERATOR(OP, DELTA) \ #undef ASSIGNMENT_OPERATOR #undef INCDEC_OPERATOR + /* Debugging functions. */ + void dump () const; + static const bool is_sign_extended = wi::int_traits <generic_wide_int <storage> >::is_sign_extended; }; @@ -859,6 +862,23 @@ generic_wide_int <storage>::operator = ( return *this; } +/* Dump the contents of the integer to stderr, for debugging. */ +template <typename storage> +void +generic_wide_int <storage>::dump () const +{ + unsigned int len = this->get_len (); + const HOST_WIDE_INT *val = this->get_val (); + unsigned int precision = this->get_precision (); + fprintf (stderr, "["); + if (len * HOST_BITS_PER_WIDE_INT < precision) + fprintf (stderr, "...,"); + for (unsigned int i = 0; i < len - 1; ++i) + fprintf (stderr, HOST_WIDE_INT_PRINT_HEX ",", val[len - 1 - i]); + fprintf (stderr, HOST_WIDE_INT_PRINT_HEX "], precision = %d\n", + val[0], precision); +} + namespace wi { template <>