doubleåž‹ã®å€¤ã‚’charé…列ã«å¤‰æ›ã™ã‚‹æ–¹æ³•ã¯ã‚ã‚Šã¾ã™ã‹ï¼Ÿå®šæ•°1.0を直接変æ›ã™ã‚‹æ–¹æ³•ã¯ç„¡ã„ã®ã§ã€å¤‰æ•°ã«å…¥ã‚Œã¦ã‹ã‚‰ã€Œãã‚ŒãŒcharé…列ã ã¨é¨™ã™ã€ã—ã‹ãªã„。 例１． union _t { double d; char c_a[1]; /*å…ˆé è¦ç´ ã®ã‚¢ãƒ‰ãƒ¬ã‚¹ã•ãˆå–å¾—ã§ãã‚Œã°è‰¯ã„ã®ã§è¦ç´ ã¯ï¼‘個ã§è‰¯ã„*/ } data; int i; char *p; data.d = 1.0; p=data.c_a; for (i = 0;i < sizeof(double);i++) printf("0x%2.2x ",*p++); putchar('\n'); 例２． double d = 1.0; char *p; p = (char *)&d; for (i = 0;i < sizeof(double);i++) printf("0x%2.2x ",*p++); putchar('\n');
printf ã«ã‚ˆã‚‹ï¼‘６進表示ã«ã¤ã„ã¦
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