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分享老外对goto的幽默注释---goto的合理用法---
/* now we know the sizes, so allocate memory */
yuv_buffer = (unsigned char *) malloc(XDIM*YDIM);
if (!yuv_buffer)
goto free_all_memory; /* goto is one of the most underestimated instructions in C !!! */
divx_buffer = (unsigned char *) malloc(XDIM*YDIM*2); /* this should really be enough! */
if (!divx_buffer)
goto free_all_memory; /* actually, every program should contain a goto */
YDIM = YDIM*2/3; /* PGM is YUV 4:2:0 format, so height is *3/2 too much */
rgb_buffer = (unsigned char *) malloc(XDIM*YDIM*4);
if (!rgb_buffer)
goto free_all_memory; /* the more, the better! */
yuv_buffer = (unsigned char *) malloc(XDIM*YDIM);
if (!yuv_buffer)
goto free_all_memory; /* goto is one of the most underestimated instructions in C !!! */
divx_buffer = (unsigned char *) malloc(XDIM*YDIM*2); /* this should really be enough! */
if (!divx_buffer)
goto free_all_memory; /* actually, every program should contain a goto */
YDIM = YDIM*2/3; /* PGM is YUV 4:2:0 format, so height is *3/2 too much */
rgb_buffer = (unsigned char *) malloc(XDIM*YDIM*4);
if (!rgb_buffer)
goto free_all_memory; /* the more, the better! */
...全文
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fohoo 2003-10-21
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多分支返回用goto很方便
fbmsf 2003-10-21
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goto翻译到汇编就是Jmp,没有jmp连api都调用不到，为什么不用。
说什么goto破坏什么什么if for 结构，简直是晕，汇编里的jmp多的是。
说什么goto破坏什么什么if for 结构，简直是晕，汇编里的jmp多的是。
oo 2003-10-21
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这种结构用goto是最好的了，要不做起来很麻烦的。
vcppman 2003-10-20
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9494 看看m$的mfc中message routing那一块还用了goto 呢
flyelf 2003-10-20
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只要用goto能带来方便，为什么不用呢
gezihou 2003-10-20
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the more, the better
量子 2003-10-20
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在那无所谓，作者只是想说有那么一个标号，代表一段代码。
awant2k 2003-10-20
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free_all_memory 标记在哪？？
dzqsuper 2003-10-20
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怎么看不明白哦
