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atof — ASCII ʸ??????????????ư???????????Ѵ?????

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Standard C Library (libc, -lc)

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<stdlib.h> double atof(const char *nptr)

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atof() ?ؿ??ϡ? nptr ???ؤ??Ƥ???ʸ?????κǽ?????ʬ???? double ɽ?????Ѵ????ޤ???

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strtod(nptr, (char **)NULL);

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atoi(3), atol(3), strtod(3), strtol(3), strtoul(3)

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atof() ?ؿ??? ISO/IEC 9899:1990 (“ISO C90”) ??Ŭ?礷?Ƥ??ޤ???