提交 11d1e2e2 编写于 作者: R Rich Felker

fix FLT_ROUNDS regression in C++ applications

commit 559de8f5 redefined FLT_ROUNDS
to use an external function that can report the actual current
rounding mode, rather than always reporting round-to-nearest. however,
float.h did not include 'extern "C"' wrapping for C++, so C++ programs
using FLT_ROUNDS ended up with an unresolved reference to a
name-mangled C++ function __flt_rounds.
上级 fc13acc3
#ifndef _FLOAT_H
#define _FLOAT_H
#ifdef __cplusplus
extern "C" {
#endif
int __flt_rounds(void);
#define FLT_ROUNDS (__flt_rounds())
......@@ -41,4 +45,8 @@ int __flt_rounds(void);
#include <bits/float.h>
#ifdef __cplusplus
}
#endif
#endif
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