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re PR c/31924 (gcc accepts invalid suffixes for decimal float constants)

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libcpp/
        PR c/31924
        * expr.c (interpret_float_suffix): Check for invalid suffix.
gcc/testsuite/
        PR c/31924
        * gcc.dg/fltconst-1.c: New test.

From-SVN: r124730
This commit is contained in:
Janis Johnson 2007-05-14 23:43:07 +00:00 • committed by Janis Johnson
parent d077694a0f
commit 30e0492187
4 changed files with 35 additions and 8 deletions
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3
gcc/testsuite/ChangeLog
View file

@ -1,5 +1,8 @@
2007-05-14 Janis Johnson <janis187@us.ibm.com>
PR c/31924
* gcc.dg/fltconst-1.c: New test.
* gcc.dg/dfp/func-mixed.c: Replace invalid constant suffixes.
* gcc.dg/dfp/operator-assignment.c: Ditto.

16
gcc/testsuite/gcc.dg/fltconst-1.c Normal file
View file

@ -0,0 +1,16 @@
/* { dg-do compile } */
/* { dg-options "-std=gnu99" } */
double a = 1.ld; /* { dg-error "invalid suffix" } */
double b = 1.fd; /* { dg-error "invalid suffix" } */
double c = 1.di; /* { dg-error "invalid suffix" } */
double d = 1.dj; /* { dg-error "invalid suffix" } */
double e = 1.id; /* { dg-error "invalid suffix" } */
double f = 1.jd; /* { dg-error "invalid suffix" } */
double g = 1.ddd; /* { dg-error "invalid suffix" } */
double h = 1.ldd; /* { dg-error "invalid suffix" } */
double i = 1.dld; /* { dg-error "invalid suffix" } */
double j = 1.ddl; /* { dg-error "invalid suffix" } */
double k = 1.fdd; /* { dg-error "invalid suffix" } */
double l = 1.dfd; /* { dg-error "invalid suffix" } */
double m = 1.ddf; /* { dg-error "invalid suffix" } */

5
libcpp/ChangeLog
View file

@ -1,3 +1,8 @@
2007-05-14 Janis Johnson <janis187@us.ibm.com>
PR c/31924
* expr.c (interpret_float_suffix): Check for invalid suffix.
2007-05-02 Eric Christopher <echristo@apple.com>
* expr.c (num_div_op): Don't overflow if the result is

19
libcpp/expr.c
View file

@ -87,16 +87,19 @@ interpret_float_suffix (const uchar *s, size_t len)
while (len--)
switch (s[len])
{
case 'f': case 'F': f++; break;
case 'l': case 'L': l++; break;
case 'f': case 'F':
if (d > 0)
return 0;
f++;
break;
case 'l': case 'L':
if (d > 0)
return 0;
l++;
break;
case 'i': case 'I':
case 'j': case 'J': i++; break;
case 'd': case 'D':
/* Disallow fd, ld suffixes. */
if (d && (f || l))
return 0;
d++;
break;
case 'd': case 'D': d++; break;
default:
return 0;
}