Hans Wennborg
d99d688358
Make -Wformat fix-its preserve original conversion specifiers.
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This commit makes PrintfSpecifier::fixType() and ScanfSpecifier::fixType()
only fix a conversion specification enough that Clang wouldn't warn about it,
as opposed to always changing it to use the "canonical" conversion specifier.
(PR11975)
This preserves the user's choice of conversion specifier in cases like:
printf("%a", (long double)1);
where we previously suggested "%Lf", we now suggest "%La"
printf("%x", (long)1);
where we previously suggested "%ld", we now suggest "%lx".
llvm-svn: 150578
2012-02-15 09:59:46 +00:00
Ted Kremenek
6fa5727939
Teach scanf/printf checking about '%Ld' and friends (a GNU extension). Fixes PR 9466.
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llvm-svn: 148859
2012-01-24 21:29:54 +00:00
David Blaikie
e4d798f078
More dead code removal (using -Wunreachable-code)
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llvm-svn: 148577
2012-01-20 21:50:17 +00:00
Hans Wennborg
6073e31baa
scanf: parse the 'm' length modifier, and check that the right arguments
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are used with that and the 'a' length modifier.
llvm-svn: 148029
2012-01-12 17:11:12 +00:00
Hans Wennborg
32f115f9c1
scanf analysis: don't bail out after successful parse of scanlist
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llvm-svn: 148025
2012-01-12 14:44:54 +00:00
Hans Wennborg
23926bd2d7
Support the 'a' length modifier in scanf format strings as a C90
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extension.
This fixes gcc.dg/format/c90-scanf-3.c and ext-4.c (test for excess
errors).
llvm-svn: 146649
2011-12-15 10:25:47 +00:00
Hans Wennborg
b1a5e09f6f
Check that arguments to a scanf call match the format specifier,
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and offer fixits when there is a mismatch.
llvm-svn: 146326
2011-12-10 13:20:11 +00:00
Michael J. Spencer
2c35bc1232
Revert r109428 "Hoist argument type checking into CheckFormatHandler. This is prep for scanf format"
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Got errors about ASTContext being undefined with Visual Studio 2010.
llvm-svn: 109491
2010-07-27 04:46:02 +00:00
Dan Gohman
28ade550f4
Fix namespace polution.
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llvm-svn: 109440
2010-07-26 21:25:24 +00:00
Ted Kremenek
df4472bca0
Hoist argument type checking into CheckFormatHandler. This is prep for scanf format
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string argument type checking.
llvm-svn: 109428
2010-07-26 19:45:54 +00:00
Ted Kremenek
4407ea4948
Hookup checking for invalid length modifiers in scanf format strings.
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llvm-svn: 108907
2010-07-20 20:04:47 +00:00
Ted Kremenek
f03e6d85a1
Add 'ConversionSpecifier' root class in 'analyze_format_string' namespace and
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derived 'PrintfConversionSpecifier' from this class. We will do the same for
'ScanfConversionSpecifier'.
llvm-svn: 108903
2010-07-20 20:04:27 +00:00
Ted Kremenek
516ef222ba
Rename 'ConsumedSoFarArg' -> 'nArg' and 'OutIntPtrArg' to 'nArg' (scanf and printf checking).
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llvm-svn: 108900
2010-07-20 20:04:10 +00:00
Ted Kremenek
5c3e1b9a54
Add missing conversion specifier parsing for 'u', 'x', 'o', and 's'. Fixes <rdar://problem/8204052>.
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llvm-svn: 108742
2010-07-19 19:47:40 +00:00
Ted Kremenek
d7b31cc60d
Hook up warning for an incomplete scanlist in scanf format strings.
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llvm-svn: 108542
2010-07-16 18:28:03 +00:00
Ted Kremenek
a1ef09407d
Add the main scanf-parsing logic that I meant to include in my previous commit.
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llvm-svn: 108502
2010-07-16 02:11:31 +00:00
