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Now gets compiled under tcc w/ -D NO_VLA

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This commit is contained in:
Your Name 2021-08-04 16:26:59 +04:30
parent 9abf0a429a
commit 7bd951a07a
1 changed files with 18 additions and 16 deletions
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34
sudoku.c
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@ -27,19 +27,21 @@ unsigned int filled;
chtype colors[6]={0}; chtype colors[6]={0};
#if defined Plan9 //the Plan9 compiler can not handle VLAs #ifdef NO_VLA//the Plan9 compiler can not handle VLAs
#define size 3 #define size 3
#define s 9 #define s 9
// I hope this is approximately right #ifdef Plan9
int round(float x) // I hope this is approximately right
{ int round(float x)
int y; {
if(x > 0) int y;
y = (int)(x + 0.5); //int will round down, so if the decimal of x is .5 or higher this will round up. if(x > 0)
else if(x < 0) y = (int)(x + 0.5); //int will round down, so if the decimal of x is .5 or higher this will round up.
y = (int)(x - 0.5); // the same but opposite else if(x < 0)
return y; y = (int)(x - 0.5); // the same but opposite
} return y;
}
#endif
#else #else
byte size,s;//s=size*size byte size,s;//s=size*size
#endif #endif
@ -87,7 +89,7 @@ char int2sgn(byte num){// convert integer to representing sign
return 0; return 0;
} }
bool isvalid(byte ty,byte tx,char board[s][s]){ //is it allowed to place that char there? const bool isvalid(const byte ty,const byte tx,const char board[s][s]){ //is it allowed to place that char there?
char t= board[ty][tx]; char t= board[ty][tx];
if(!t) if(!t)
return 0; return 0;
@ -322,7 +324,7 @@ void gameplay(void){
} }
int main(int argc,char** argv){ int main(int argc,char** argv){
signal(SIGINT,sigint_handler); signal(SIGINT,sigint_handler);
#ifndef Plan9 #ifndef NO_VLA
if(argc>4 || (argc==2 && !strcmp("help",argv[1])) ){ if(argc>4 || (argc==2 && !strcmp("help",argv[1])) ){
printf("Usage: %s [size [ difficulty]] \n",argv[0]); printf("Usage: %s [size [ difficulty]] \n",argv[0]);
return EXIT_FAILURE; return EXIT_FAILURE;
@ -385,7 +387,7 @@ int main(int argc,char** argv){
colors[b]=COLOR_PAIR(b+1); colors[b]=COLOR_PAIR(b+1);
} }
} }
#ifndef Plan9 #ifndef NO_VLA
s= size*size; s= size*size;
#endif #endif
char board[s][s]; char board[s][s];