Back out national digits support, POSIX explicetely disallows it:

The definition of character class digit requires that only ten characters
-the ones defining digits- can be specified; alternate digits (for
example, Hindi or Kanji) cannot be specified here. However, the encoding
may vary if an implementation supports more than one encoding.

The definition of character class xdigit requires that the characters
included in character class digit are included here also and allows for
different symbols for the hexadecimal digits 10 through 15.

1 files changed, 24 insertions, 24 deletions

diff --git a/lib/libc/stdlib/strtod.c b/lib/libc/stdlib/strtod.c
index 72bb8bf..97b668c87 100644
--- a/lib/libc/stdlib/strtod.c
+++ b/lib/libc/stdlib/strtod.c
@@ -481,13 +481,13 @@ s2b
 	if (9 < nd0) {
 		s += 9;
 		do
-			b = multadd(b, 10, digittoint((unsigned char)*s++));
+			b = multadd(b, 10, *s++ - '0');
 		while (++i < nd0);
 		s++;
 	} else
 		s += 10;
 	for (; i < nd; i++)
-		b = multadd(b, 10, digittoint((unsigned char)*s++));
+		b = multadd(b, 10, *s++ - '0');
 	return b;
 }
 
@@ -1192,7 +1192,7 @@ strtod
 #endif
 {
 	int bb2, bb5, bbe, bd2, bd5, bbbits, bs2, c, dsign,
-		 e, e1, esign, i, j, k, n, nd, nd0, nf, nz, nz0, sign;
+		 e, e1, esign, i, j, k, nd, nd0, nf, nz, nz0, sign;
 	CONST char *s, *s0, *s1;
 	double aadj, aadj1, adj, rv, rv0;
 	long L;
@@ -1219,26 +1219,26 @@ strtod
 			goto break2;
 	}
  break2:
-	if (isdigit(c = (unsigned char)*s) && digittoint(c) == 0) {
+	if (*s == '0') {
 		nz0 = 1;
-		while (isdigit(c = (unsigned char)*++s) && digittoint(c) == 0) ;
+		while (*++s == '0') ;
 		if (!*s)
 			goto ret;
 	}
 	s0 = s;
 	y = z = 0;
-	for (nd = nf = 0; isdigit(c = (unsigned char)*s) && (n = digittoint(c)) <= 9; nd++, s++)
+	for (nd = nf = 0; (c = *s) >= '0' && c <= '9'; nd++, s++)
 		if (nd < 9)
-			y = 10*y + n;
+			y = 10*y + c - '0';
 		else if (nd < 16)
-			z = 10*z + n;
+			z = 10*z + c - '0';
 	nd0 = nd;
 	if ((char)c == decimal_point) {
-		c = (unsigned char)*++s;
+		c = *++s;
 		if (!nd) {
-			for (; isdigit(c) && digittoint(c) == 0; c = (unsigned char)*++s)
+			for (; c == '0'; c = *++s)
 				nz++;
-			if (isdigit(c) && (n = digittoint(c)) <= 9) {
+			if (c > '0' && c <= '9') {
 				s0 = s;
 				nf += nz;
 				nz = 0;
@@ -1246,10 +1246,10 @@ strtod
 			}
 			goto dig_done;
 		}
-		for (; isdigit(c) && (n = digittoint(c)) <= 9; c = (unsigned char)*++s) {
+		for (; c >= '0' && c <= '9'; c = *++s) {
  have_dig:
 			nz++;
-			if (n > 0) {
+			if (c - '0' > 0) {
 				nf += nz;
 				for (i = 1; i < nz; i++)
 					if (nd++ < 9)
@@ -1257,9 +1257,9 @@ strtod
 					else if (nd <= DBL_DIG + 1)
 						z *= 10;
 				if (nd++ < 9)
-					y = 10*y + n;
+					y = 10*y + c - '0';
 				else if (nd <= DBL_DIG + 1)
-					z = 10*z + n;
+					z = 10*z + c - '0';
 				nz = 0;
 			}
 		}
@@ -1273,20 +1273,20 @@ strtod
 		}
 		s00 = s;
 		esign = 0;
-		switch(c = (unsigned char)*++s) {
+		switch(c = *++s) {
 			case '-':
 				esign = 1;
 			case '+':
-				c = (unsigned char)*++s;
+				c = *++s;
 		}
-		if (isdigit(c) && digittoint(c) <= 9) {
-			while (isdigit(c) && digittoint(c) == 0)
-				c = (unsigned char)*++s;
-			if (isdigit(c) && (n = digittoint(c)) <= 9) {
-				L = n;
+		if (c >= '0' && c <= '9') {
+			while (c == '0')
+				c = *++s;
+			if (c > '0' && c <= '9') {
+				L = c - '0';
 				s1 = s;
-				while (isdigit(c = (unsigned char)*++s) && (n = digittoint(c)) <= 9)
-					L = 10*L + n;
+				while ((c = *++s) >= '0' && c <= '9')
+					L = 10*L + c - '0';
 				if (s - s1 > 8 || L > 19999)
 					/* Avoid confusion from exponents
 					 * so large that e might overflow.