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author | Tom Tromey <tom@tromey.com> | 2021-03-08 07:27:57 -0700 |
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committer | Tom Tromey <tom@tromey.com> | 2021-03-08 07:28:06 -0700 |
commit | 93b2b5fae269c9a8e249e81d3549392c8ff70f38 (patch) | |
tree | 260ff4e11e599302f0d921da179d0949c0d908af /gdb | |
parent | 9f1a1f3c4f8fd9dd7422bf246ef3d199df22eb18 (diff) | |
download | gdb-93b2b5fae269c9a8e249e81d3549392c8ff70f38.zip gdb-93b2b5fae269c9a8e249e81d3549392c8ff70f38.tar.gz gdb-93b2b5fae269c9a8e249e81d3549392c8ff70f38.tar.bz2 |
Split out eval_op_f_modulo
This splits BINOP_FORTRAN_MODULO into a new function for future use.
gdb/ChangeLog
2021-03-08 Tom Tromey <tom@tromey.com>
* f-lang.c (eval_op_f_modulo): New function.
(evaluate_subexp_f): Use it.
Diffstat (limited to 'gdb')
-rw-r--r-- | gdb/ChangeLog | 5 | ||||
-rw-r--r-- | gdb/f-lang.c | 80 |
2 files changed, 49 insertions, 36 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 2d71235..5bf13a7 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,10 @@ 2021-03-08 Tom Tromey <tom@tromey.com> + * f-lang.c (eval_op_f_modulo): New function. + (evaluate_subexp_f): Use it. + +2021-03-08 Tom Tromey <tom@tromey.com> + * f-lang.c (eval_op_f_floor): New function. (evaluate_subexp_f): Use it. diff --git a/gdb/f-lang.c b/gdb/f-lang.c index bd16052..5239f7a 100644 --- a/gdb/f-lang.c +++ b/gdb/f-lang.c @@ -1079,6 +1079,47 @@ eval_op_f_floor (struct type *expect_type, struct expression *exp, return value_from_host_double (type, val); } +/* A helper function for BINOP_FORTRAN_MODULO. */ + +static struct value * +eval_op_f_modulo (struct type *expect_type, struct expression *exp, + enum noside noside, + struct value *arg1, struct value *arg2) +{ + if (noside == EVAL_SKIP) + return eval_skip_value (exp); + struct type *type = value_type (arg1); + if (type->code () != value_type (arg2)->code ()) + error (_("non-matching types for parameters to MODULO ()")); + /* MODULO(A, P) = A - FLOOR (A / P) * P */ + switch (type->code ()) + { + case TYPE_CODE_INT: + { + LONGEST a = value_as_long (arg1); + LONGEST p = value_as_long (arg2); + LONGEST result = a - (a / p) * p; + if (result != 0 && (a < 0) != (p < 0)) + result += p; + return value_from_longest (value_type (arg1), result); + } + case TYPE_CODE_FLT: + { + double a + = target_float_to_host_double (value_contents (arg1), + value_type (arg1)); + double p + = target_float_to_host_double (value_contents (arg2), + value_type (arg2)); + double result = fmod (a, p); + if (result != 0 && (a < 0.0) != (p < 0.0)) + result += p; + return value_from_host_double (type, result); + } + } + error (_("MODULO of type %s not supported"), TYPE_SAFE_NAME (type)); +} + /* Special expression evaluation cases for Fortran. */ static struct value * @@ -1132,42 +1173,9 @@ evaluate_subexp_f (struct type *expect_type, struct expression *exp, } case BINOP_FORTRAN_MODULO: - { - arg1 = evaluate_subexp (nullptr, exp, pos, noside); - arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside); - if (noside == EVAL_SKIP) - return eval_skip_value (exp); - type = value_type (arg1); - if (type->code () != value_type (arg2)->code ()) - error (_("non-matching types for parameters to MODULO ()")); - /* MODULO(A, P) = A - FLOOR (A / P) * P */ - switch (type->code ()) - { - case TYPE_CODE_INT: - { - LONGEST a = value_as_long (arg1); - LONGEST p = value_as_long (arg2); - LONGEST result = a - (a / p) * p; - if (result != 0 && (a < 0) != (p < 0)) - result += p; - return value_from_longest (value_type (arg1), result); - } - case TYPE_CODE_FLT: - { - double a - = target_float_to_host_double (value_contents (arg1), - value_type (arg1)); - double p - = target_float_to_host_double (value_contents (arg2), - value_type (arg2)); - double result = fmod (a, p); - if (result != 0 && (a < 0.0) != (p < 0.0)) - result += p; - return value_from_host_double (type, result); - } - } - error (_("MODULO of type %s not supported"), TYPE_SAFE_NAME (type)); - } + arg1 = evaluate_subexp (nullptr, exp, pos, noside); + arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside); + return eval_op_f_modulo (expect_type, exp, noside, arg1, arg2); case FORTRAN_LBOUND: case FORTRAN_UBOUND: |