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Use scanf to set macro

原文 2012-12-22 14:01:18 2 1 c/ macros

是否可以使用scanf为一个名为SIZE （ #define SIZE ）的宏替换赋值，但不保存另一个变量中scanf附带的值？

1 answers

Macros are evaluated at pre-compilation by pre-compiler scanf is evaluated by the compiler. Compiler doesn't understand macros. So no.

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Related Question Scanf string and set pointer scanf limited character set scanf: template with macro (#define constant) inside Arrays and scanf issues; values to use with scanf Use of scanf() in C use printf and scanf on char * What is the use of scanf() == 1? Use scanf in if statement C: Ways to use scanf Use scanf with defined value

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Use scanf to set macro

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1 answers

solution1 2 ACCPTED 2012-12-22 14:03:07

solution1
2 ACCPTED 2012-12-22 14:03:07