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Changed FP significand/exponent functions to return non-normalized results. Clarified function remarks. Relates to #383.

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Christoph M. Wintersteiger 2016-01-13 16:32:32 +00:00
parent e0f873c732
commit 357ec9e7d1
3 changed files with 39 additions and 22 deletions
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9
src/api/z3_fpa.h
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@ -829,7 +829,8 @@ extern "C" {
\param t a floating-point numeral
\param sgn sign
Remarks: sets \c sgn to 0 if the literal is NaN or positive and to 1 otherwise.
Remarks: sets \c sgn to 0 if `t' is positive and to 1 otherwise, except for
NaN, which is an invalid argument.
def_API('Z3_fpa_get_numeral_sign', BOOL, (_in(CONTEXT), _in(AST), _out(INT)))
*/
@ -841,7 +842,7 @@ extern "C" {
\param c logical context
\param t a floating-point numeral
Remarks: The significand s is always 0 < s < 2.0; the resulting string is long
Remarks: The significand s is always 0.0 <= s < 2.0; the resulting string is long
enough to represent the real significand precisely.
def_API('Z3_fpa_get_numeral_significand_string', STRING, (_in(CONTEXT), _in(AST)))
@ -869,6 +870,8 @@ extern "C" {
\param c logical context
\param t a floating-point numeral
Remarks: This function extracts the exponent in `t`, without normalization.
def_API('Z3_fpa_get_numeral_exponent_string', STRING, (_in(CONTEXT), _in(AST)))
*/
Z3_string Z3_API Z3_fpa_get_numeral_exponent_string(Z3_context c, Z3_ast t);
@ -880,6 +883,8 @@ extern "C" {
\param t a floating-point numeral
\param n exponent
Remarks: This function extracts the exponent in `t`, without normalization.
def_API('Z3_fpa_get_numeral_exponent_int64', BOOL, (_in(CONTEXT), _in(AST), _out(INT64)))
*/
Z3_bool Z3_API Z3_fpa_get_numeral_exponent_int64(Z3_context c, Z3_ast t, __int64 * n);