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c-lex.c (yylex): Don't allow integer suffixes 'LUL', 'Ll', 'lL'.

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* c-lex.c (yylex): Don't allow integer suffixes 'LUL', 'Ll', 'lL'.

testsuite:
	* gcc.dg/noncompile/const-ll-1.c: New test.

From-SVN: r35563
This commit is contained in:
Joseph Myers 2000-08-08 09:23:31 +01:00 committed by Joseph Myers
parent 2c58a14717
commit 43d1e05928
4 changed files with 40 additions and 1 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2000-08-08 Joseph S. Myers <jsm28@cam.ac.uk>
* c-lex.c (yylex): Don't allow integer suffixes 'LUL', 'Ll', 'lL'.
2000-08-07 Nick Clifton <nickc@redhat.com>
* config/mips/mips.c: Fix compile time warning messages.

9
gcc/c-lex.c
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@ -1762,6 +1762,7 @@ yylex ()
int spec_unsigned = 0;
int spec_long = 0;
int spec_long_long = 0;
int suffix_lu = 0;
int spec_imag = 0;
int warn = 0, i;
@ -1773,6 +1774,8 @@ yylex ()
if (spec_unsigned)
error ("two `u's in integer constant");
spec_unsigned = 1;
if (spec_long)
suffix_lu = 1;
}
else if (c == 'l' || c == 'L')
{
@ -1780,12 +1783,16 @@ yylex ()
{
if (spec_long_long)
error ("three `l's in integer constant");
else if (suffix_lu)
error ("`LUL' is not a valid integer suffix");
else if (c != spec_long)
error ("`Ll' and `lL' are not valid integer suffixes");
else if (pedantic && ! flag_isoc99
&& ! in_system_header && warn_long_long)
pedwarn ("ANSI C forbids long long integer constants");
spec_long_long = 1;
}
spec_long = 1;
spec_long = c;
}
else if (c == 'i' || c == 'j' || c == 'I' || c == 'J')
{

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2000-08-08 Joseph S. Myers <jsm28@cam.ac.uk>
* gcc.dg/noncompile/const-ll-1.c: New test.
2000-08-07 Joseph S. Myers <jsm28@cam.ac.uk>
* gcc.dg/c90-printf-2.c, gcc.dg/c99-printf-2.c: New tests.

24
gcc/testsuite/gcc.dg/noncompile/const-ll-1.c Normal file
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@ -0,0 +1,24 @@
/* Test for broken long long suffixes. */
/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
/* The following are valid integer suffixes, according to C99:
no suffix
u or U
ul, uL, Ul or UL
ull, uLL, Ull or ULL
l or L
lu, lU, Lu or LU
llu, llU, LLu or LLU
The following are not but have been accepted by GCC in the past:
lul and case variants (the 'l's being separated by a 'u')
lL, Ll and variants with a 'u' (mixed case pair of 'l's)
(cpplib gets this right when processing #if expressions.)
*/
unsigned long long a = 1LUL; /* { dg-error "LUL" "error for LUL suffix" } */
long long b = 1Ll; /* { dg-error "Ll" "error for Ll suffix" } */