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ch05: new chapter

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Luciano Ramalho
2020-02-19 00:11:45 -03:00
parent b74ea52ffb
commit 1df34f2945
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05-record-like/struct/README Normal file
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To compile `metro_write.c` on MacOS 10.14 with XCode:
$ clang metro_write.c -o metro
Output:
$ xxd metro_areas.bin
00000000: e207 0000 546f 6b79 6f00 0000 0000 0000 ....Tokyo.......
00000010: 0000 0000 0000 0000 4a50 01e7 1158 274c ........JP...X'L
00000020: df07 0000 5368 616e 6768 6169 0000 0000 ....Shanghai....
00000030: 0100 0000 0e00 0000 434e 0000 f8a0 134c ........CN.....L
00000040: df07 0000 4a61 6b61 7274 6100 0000 0000 ....Jakarta.....
00000050: 0000 0000 0000 0000 4944 0000 bcc5 f14b ........ID.....K
$ python3 metro_read.py
2018 Tokyo, JP 43,868,228
2015 Shanghai, CN 38,700,000
2015 Jakarta, ID 31,689,592