shithub: scc

Download patch

ref: 60e5ff036844491e3ad78a4254171c218dec98c9
parent: c2f5b177c6ada717746917581b5d3d98e1ab91a0
author: Quentin Rameau <quinq@fifth.space>
date: Sat Dec 29 05:20:52 EST 2018 

[libc] Use _dtoi for atoi family too


--- a/src/libc/stdlib/atoi.c
+++ b/src/libc/stdlib/atoi.c
@@ -5,7 +5,7 @@
 int
 atoi(const char *s)
 {
-	int n, sign = -1;
+	int n, d, sign = -1;
 
 	while (isspace(*s))
 		++s;
@@ -18,8 +18,8 @@
 	}
 
 	/* Compute n as a negative number to avoid overflow on INT_MIN */
-	for (n = 0; isdigit(*s); ++s)
-		n = 10*n - (*s - '0');
+	for (n = 0; (d = _dtoi(*s)) < 10; ++s)
+		n = n*10 - d;
 
 	return sign * n;
 }
--- a/src/libc/stdlib/atol.c
+++ b/src/libc/stdlib/atol.c
@@ -5,7 +5,7 @@
 long
 atol(const char *s)
 {
-	int sign = -1;
+	int d, sign = -1;
 	long n;
 
 	while (isspace(*s))
@@ -19,8 +19,8 @@
 	}
 
 	/* Compute n as a negative number to avoid overflow on LONG_MIN */
-	for (n = 0; isdigit(*s); ++s)
-		n = 10*n - (*s - '0');
+	for (n = 0; (d = _dtoi(*s)) < 10; ++s)
+		n = n*10 - d;
 
 	return sign * n;
 }
--- a/src/libc/stdlib/atoll.c
+++ b/src/libc/stdlib/atoll.c
@@ -5,7 +5,7 @@
 long long
 atoll(const char *s)
 {
-	int sign = -1;
+	int d, sign = -1;
 	long long n;
 
 	while (isspace(*s))
@@ -19,8 +19,8 @@
 	}
 
 	/* Compute n as a negative number to avoid overflow on LLONG_MIN */
-	for (n = 0; isdigit(*s); ++s)
-		n = 10*n - (*s - '0');
+	for (n = 0; (d = _dtoi(*s)) < 10; ++s)
+		n = n*10 - d;
 
 	return sign * n;
 }