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| author | Arnaud Charlet <charlet@gcc.gnu.org> | 2016-04-18 14:33:46 +0200 |
|---|---|---|
| committer | Arnaud Charlet <charlet@gcc.gnu.org> | 2016-04-18 14:33:46 +0200 |
| commit | 520c0201ebc60741a955d451bb6e9cc57c268014 (patch) | |
| tree | 783e6520a642cfa7cdf10a2ad41167a9372dc11b /gcc/ada/sem_eval.adb | |
| parent | 274c2cda3e077975c406ae5549813652c4f76289 (diff) | |
| download | gcc-520c0201ebc60741a955d451bb6e9cc57c268014.zip gcc-520c0201ebc60741a955d451bb6e9cc57c268014.tar.gz gcc-520c0201ebc60741a955d451bb6e9cc57c268014.tar.bz2 | |
[multiple changes]
2016-04-18 Arnaud Charlet <charlet@adacore.com>
* osint-c.ads, osint-c.adb (Delete_C_File, Delete_H_File): New.
* gnat1drv.adb (Gnat1drv): Delete old C files before regenerating them.
* debug.adb: Reserve -gnatd.4 to force generation of C files.
2016-04-18 Yannick Moy <moy@adacore.com>
* sem_eval.adb (Eval_Arithmetic_Op): Do not issue error on static
division by zero, instead possibly issue a warning.
* sem_res.adb (Resolve_Arithmetic_Op): Do not issue error on
static division by zero, instead add check flag on original
expression.
* sem_util.adb, sem_util.ads (Compile_Time_Constraint_Error):
Only issue error when both SPARK_Mode is On and Warn is False.
2016-04-18 Yannick Moy <moy@adacore.com>
* checks.adb (Apply_Scalar_Range_Check): Force
warning instead of error when SPARK_Mode is On, on index out of
bounds, and set check flag for GNATprove.
From-SVN: r235138
Diffstat (limited to 'gcc/ada/sem_eval.adb')
| -rw-r--r-- | gcc/ada/sem_eval.adb | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/gcc/ada/sem_eval.adb b/gcc/ada/sem_eval.adb index 67d464c..9703943 100644 --- a/gcc/ada/sem_eval.adb +++ b/gcc/ada/sem_eval.adb @@ -1885,9 +1885,14 @@ package body Sem_Eval is -- division, rem and mod if the right operand is zero. if Right_Int = 0 then + + -- When SPARK_Mode is On, force a warning instead of + -- an error in that case, as this likely corresponds + -- to deactivated code. + Apply_Compile_Time_Constraint_Error (N, "division by zero", CE_Divide_By_Zero, - Warn => not Stat); + Warn => not Stat or SPARK_Mode = On); Set_Raises_Constraint_Error (N); return; @@ -1903,10 +1908,16 @@ package body Sem_Eval is -- division, rem and mod if the right operand is zero. if Right_Int = 0 then + + -- When SPARK_Mode is On, force a warning instead of + -- an error in that case, as this likely corresponds + -- to deactivated code. + Apply_Compile_Time_Constraint_Error (N, "mod with zero divisor", CE_Divide_By_Zero, - Warn => not Stat); + Warn => not Stat or SPARK_Mode = On); return; + else Result := Left_Int mod Right_Int; end if; @@ -1917,9 +1928,14 @@ package body Sem_Eval is -- division, rem and mod if the right operand is zero. if Right_Int = 0 then + + -- When SPARK_Mode is On, force a warning instead of + -- an error in that case, as this likely corresponds + -- to deactivated code. + Apply_Compile_Time_Constraint_Error (N, "rem with zero divisor", CE_Divide_By_Zero, - Warn => not Stat); + Warn => not Stat or SPARK_Mode = On); return; else |