| 1 | This patch fixes a bug into ostream::operator<<(double) due to the wrong size |
| 2 | passed into the __convert_from_v method. The wrong size is then passed to |
| 3 | std::snprintf function, that, on uClibc, doens't handle sized 0 buffer. |
| 4 | |
| 5 | Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com> |
| 6 | |
| 7 | Index: gcc-4.2.3/libstdc++-v3/include/bits/locale_facets.tcc |
| 8 | =================================================================== |
| 9 | --- gcc-4.2.3.orig/libstdc++-v3/include/bits/locale_facets.tcc 2008-01-05 12:04:43.000000000 +0100 |
| 10 | +++ gcc-4.2.3/libstdc++-v3/include/bits/locale_facets.tcc 2008-05-21 13:45:51.877288338 +0200 |
| 11 | @@ -1145,7 +1145,7 @@ |
| 12 | const int __cs_size = __fixed ? __max_exp + __prec + 4 |
| 13 | : __max_digits * 2 + __prec; |
| 14 | char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); |
| 15 | - __len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, __fbuf, |
| 16 | + __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size, __fbuf, |
| 17 | __prec, __v); |
| 18 | #endif |
| 19 | |
| 20 | @@ -1779,7 +1779,7 @@ |
| 21 | // max_exponent10 + 1 for the integer part, + 2 for sign and '\0'. |
| 22 | const int __cs_size = numeric_limits<long double>::max_exponent10 + 3; |
| 23 | char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); |
| 24 | - int __len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, "%.*Lf", |
| 25 | + int __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size, "%.*Lf", |
| 26 | 0, __units); |
| 27 | #endif |
| 28 | string_type __digits(__len, char_type()); |
| 29 | |
