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Base36
Base36 is a binary-to-text encoding scheme that represents binary data in an ASCII string format by translating it into a radix-36 representation. The choice of 36 is convenient in that the digits can be represented using the Arabic numerals 0–9 and the Latin letters A–Z (the ISO basic Latin alphabet). == Conversion ==
32- and 64-bit integers will only hold at most 6 or 13 base-36 digits, respectively (that many base-36 digits overflow the 32- and 64-bit integers). For example, the 64-bit signed integer maximum value of "9223372036854775807" is "1Y2P0IJ32E8E7" in base-36. For numbers with more digits, one can use the functions ''mpz_set_str'' and ''mpz_get_str'' in the GMP arbitrary-precision math library. For floating-point numbers the corresponding functions are called ''mpf_set_str'' and ''mpf_get_str''.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Base36」の詳細全文を読む
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