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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};
#if defined Plan9 //the Plan9 compiler can not handle VLAs
#define size 3
#define s 9
// I hope this is approximately right
int round(float x)
{
int y;
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.
else if(x < 0)
y = (int)(x - 0.5); // the same but opposite
return y;
}
#ifdef NO_VLA//the Plan9 compiler can not handle VLAs
#define size 3
#define s 9
#ifdef Plan9
// I hope this is approximately right
int round(float x)
{
int y;
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.
else if(x < 0)
y = (int)(x - 0.5); // the same but opposite
return y;
}
#endif
#else
byte size,s;//s=size*size
#endif
@ -87,7 +89,7 @@ char int2sgn(byte num){// convert integer to representing sign
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];
if(!t)
return 0;
@ -322,7 +324,7 @@ void gameplay(void){
}
int main(int argc,char** argv){
signal(SIGINT,sigint_handler);
#ifndef Plan9
#ifndef NO_VLA
if(argc>4 || (argc==2 && !strcmp("help",argv[1])) ){
printf("Usage: %s [size [ difficulty]] \n",argv[0]);
return EXIT_FAILURE;
@ -385,7 +387,7 @@ int main(int argc,char** argv){
colors[b]=COLOR_PAIR(b+1);
}
}
#ifndef Plan9
#ifndef NO_VLA
s= size*size;
#endif
char board[s][s];