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authorStefan Tauner <[email protected]>2012-04-13 01:45:02 +0200
committerStefano Karapetsas <[email protected]>2012-04-22 19:27:00 +0200
commit7155e47537e3707d42a675d2603386963c6d9156 (patch)
treea1b6e49f43b9408f1dbcb83e41b9606c83d19fd0 /src/mp-equation-parser.y
parent5f32b5b06eed534bf0201266169dcb7e8d833349 (diff)
downloadmate-calc-7155e47537e3707d42a675d2603386963c6d9156.tar.bz2
mate-calc-7155e47537e3707d42a675d2603386963c6d9156.tar.xz
Support shifts with keyboard
This patch also changes the shift operation itself to use MPNumber for the multiplier too. Previously a signed int was used, which led to "interesting" results for bigger numbers. This was hidden because the GUI did not allow shifts with more than 15 places. Signed-off-by: Stefan Tauner <[email protected]>
Diffstat (limited to 'src/mp-equation-parser.y')
-rw-r--r--src/mp-equation-parser.y3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mp-equation-parser.y b/src/mp-equation-parser.y
index 064f90f..bb623cd 100644
--- a/src/mp-equation-parser.y
+++ b/src/mp-equation-parser.y
@@ -182,6 +182,7 @@ static void do_conversion(yyscan_t yyscanner, const MPNumber *x, const char *x_u
%left UNARY_PLUS
%left tADD tSUBTRACT
%left tAND tOR tXOR tXNOR
+%left tLSHIFT tRSHIFT
%left tMULTIPLY tDIVIDE tMOD MULTIPLICATION
%left tNOT
%left tROOT tROOT3 tROOT4
@@ -242,6 +243,8 @@ exp:
| exp tOR exp %prec BOOLEAN_OPERATOR {mp_or(&$1, &$3, &$$);}
| exp tXOR exp %prec BOOLEAN_OPERATOR {mp_xor(&$1, &$3, &$$);}
| tNUMBER {mp_set_from_mp(&$1, &$$);}
+| exp tLSHIFT exp {mp_shift(&$1, mp_cast_to_int(&$3), &$$);}
+| exp tRSHIFT exp {mp_shift(&$1, -mp_cast_to_int(&$3), &$$);}
;