diff options
Diffstat (limited to 'contrib/one-true-awk')
| -rw-r--r-- | contrib/one-true-awk/awk.1 | 2 | ||||
| -rw-r--r-- | contrib/one-true-awk/main.c | 2 | ||||
| -rw-r--r-- | contrib/one-true-awk/run.c | 8 |
3 files changed, 7 insertions, 5 deletions
diff --git a/contrib/one-true-awk/awk.1 b/contrib/one-true-awk/awk.1 index 6119613c1aae..b0d243b495cc 100644 --- a/contrib/one-true-awk/awk.1 +++ b/contrib/one-true-awk/awk.1 @@ -208,7 +208,7 @@ or of if no argument. .TP .B rand -random number on (0,1) +random number on [0,1) .TP .B srand sets seed for diff --git a/contrib/one-true-awk/main.c b/contrib/one-true-awk/main.c index ab01676f394e..ec7029454386 100644 --- a/contrib/one-true-awk/main.c +++ b/contrib/one-true-awk/main.c @@ -74,7 +74,7 @@ int main(int argc, char *argv[]) signal(SIGFPE, fpecatch); srand_seed = 1; - srand(srand_seed); + srandom((unsigned long) srand_seed); yyin = NULL; symtab = makesymtab(NSYMTAB/NSYMTAB); diff --git a/contrib/one-true-awk/run.c b/contrib/one-true-awk/run.c index cafaff3e4ad9..2bcd9dfa252a 100644 --- a/contrib/one-true-awk/run.c +++ b/contrib/one-true-awk/run.c @@ -1521,8 +1521,10 @@ Cell *bltin(Node **a, int n) /* builtin functions. a[0] is type, a[1] is arg lis u = (Awkfloat) system(getsval(x)) / 256; /* 256 is unix-dep */ break; case FRAND: - /* in principle, rand() returns something in 0..RAND_MAX */ - u = (Awkfloat) (rand() % RAND_MAX) / RAND_MAX; + /* random() returns numbers in [0..2^31-1] + * in order to get a number in [0, 1), divide it by 2^31 + */ + u = (Awkfloat) random() / (0x7fffffffL + 0x1UL); break; case FSRAND: if (isrec(x)) /* no argument provided */ @@ -1530,7 +1532,7 @@ Cell *bltin(Node **a, int n) /* builtin functions. a[0] is type, a[1] is arg lis else u = getfval(x); tmp = u; - srand((unsigned int) u); + srandom((unsigned long) u); u = srand_seed; srand_seed = tmp; break; |