mirror of https://github.com/hak5/openwrt.git
27 lines
1.3 KiB
Diff
27 lines
1.3 KiB
Diff
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This patch fixes a bug into ostream::operator<<(double) due to the wrong size
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passed into the __convert_from_v method. The wrong size is then passed to
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std::snprintf function, that, on uClibc, doens't handle sized 0 buffer.
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Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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--- a/libstdc++-v3/include/bits/locale_facets.tcc
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+++ b/libstdc++-v3/include/bits/locale_facets.tcc
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@@ -1149,7 +1149,7 @@ _GLIBCXX_BEGIN_LDBL_NAMESPACE
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const int __cs_size = __fixed ? __max_exp + __prec + 4
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: __max_digits * 2 + __prec;
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char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
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- __len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, __fbuf,
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+ __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size, __fbuf,
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__prec, __v);
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#endif
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@@ -1789,7 +1789,7 @@ _GLIBCXX_BEGIN_LDBL_NAMESPACE
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// max_exponent10 + 1 for the integer part, + 2 for sign and '\0'.
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const int __cs_size = numeric_limits<long double>::max_exponent10 + 3;
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char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
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- int __len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, "%.*Lf",
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+ int __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size, "%.*Lf",
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0, __units);
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#endif
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string_type __digits(__len, char_type());
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