C言語プログラミング1.10アーキテクチャx86_64の未定義のシンボル: '_ line'、参照元:
C Language Programming 1
#include #define MAXLINE 1000 int getLine(void) void copy(void) int main(int argc, const char * argv[]) { int len extern int max extern char longest[] max = 0 while ((len = getLine())>0) { if (len>max) { max = len copy() } } if (max>0) { printf('%s',longest) } return 0 } int getLine(void){ int c = 0,i extern char line[] for ( i = 0 i