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2813126e31
* 引入cargo * 取消对Cargo.lock的跟踪 * 解决vscode报错问题 * new: rust的代码能够调用c语言的printk_color * 1、将原本run.sh的工作拆解，变为几个不同的make命令 2、在docker镜像中编译rust * 更改workflow * update workflow * new: 解决workflow无法通过编译的问题
30 lines
509 B
C
30 lines
509 B
C
#include <common/math.h>
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#include <common/sys/types.h>
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#include "libm.h"
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double fabs(double x)
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{
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union
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{
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double f;
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uint64_t i;
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} u = {x};
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u.i &= -1ULL / 2;
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return u.f;
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}
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#if __LDBL_MANT_DIG__ == 53 && __LDBL_MAX_EXP__ == 1024
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long double fabsl(long double x)
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{
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return fabs(x);
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}
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#elif (__LDBL_MANT_DIG__ == 64 || __LDBL_MANT_DIG__ == 113) && __LDBL_MAX_EXP__ == 16384
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long double fabsl(long double x)
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{
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union ldshape u = {x};
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u.i.se &= 0x7fff;
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return u.f;
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}
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#endif |