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Fix for FLATBUFFERS_PREFER_PRINTF writing zero-length strings (#5418)

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This commit is contained in:
Adrian Perez
2019-06-27 09:23:13 -07:00
committed by Wouter van Oortmerssen
parent b7012484f3
commit 5479adc80f
1 changed files with 1 additions and 1 deletions
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include/flatbuffers/util.h
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@@ -102,7 +102,7 @@ std::string NumToStringImplWrapper(T t, const char *fmt, int precision = 0) {
size_t string_width = NumToStringWidth(t, precision);
std::string s(string_width, 0x00);
// Allow snprintf to use std::string trailing null to detect buffer overflow
snprintf(const_cast<char *>(s.data()), (s.size() + 1), fmt, precision, t);
snprintf(const_cast<char *>(s.data()), (s.size() + 1), fmt, string_width, t);
return s;
}
#endif // FLATBUFFERS_PREFER_PRINTF