- 所有 tcc 文件/内容/宏改名为 pcc (tcc.c->pcc.c, tccelf.c->pccelf.c, libtcc.c->libpcc.c 等) - 支持架构: i386, x86_64, ARM, ARM64, RISC-V, C67 - 支持格式: PE, ELF, Mach-O, COFF - 完整预处理、代码生成、链接器、调试信息 - 构建成功: pcc.exe (x86_64 Windows) - 功能测试通过: 递归/结构体/浮点/switch/循环 - 自编译测试通过: pcc 可以编译自身
38 行
492 B
C
38 行
492 B
C
#include <stdio.h>
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#include <float.h>
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union ieee_double_extract
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{
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struct {
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unsigned int manl:32;
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unsigned int manh:20;
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unsigned int exp:11;
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unsigned int sig:1;
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} s;
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double d;
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};
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double scale(double d)
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{
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union ieee_double_extract x;
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x.d = d;
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x.d *= 1000;
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return x.d;
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}
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void mul(double *p)
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{
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*p *= 2.0;
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}
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int
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main(void)
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{
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double d = 4.0;
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printf("%g\n", scale(42));
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mul(&d);
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printf("%g\n", d);
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return 0;
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}
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