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-rw-r--r--src/libsyntax/parse/mod.rs8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/libsyntax/parse/mod.rs b/src/libsyntax/parse/mod.rs
index 1c146968fd5..e7be876edbb 100644
--- a/src/libsyntax/parse/mod.rs
+++ b/src/libsyntax/parse/mod.rs
@@ -401,7 +401,7 @@ pub fn char_lit(lit: &str) -> (char, isize) {
     let msg2 = &msg[];
 
     fn esc(len: usize, lit: &str) -> Option<(char, isize)> {
-        num::from_str_radix(&lit[2..len], 16)
+        num::from_str_radix(&lit[2..len], 16).ok()
         .and_then(char::from_u32)
         .map(|x| (x, len as isize))
     }
@@ -410,7 +410,7 @@ pub fn char_lit(lit: &str) -> (char, isize) {
         if lit.as_bytes()[2] == b'{' {
             let idx = lit.find('}').expect(msg2);
             let subslice = &lit[3..idx];
-            num::from_str_radix(subslice, 16)
+            num::from_str_radix(subslice, 16).ok()
                 .and_then(char::from_u32)
                 .map(|x| (x, subslice.chars().count() as isize + 4))
         } else {
@@ -583,7 +583,7 @@ pub fn byte_lit(lit: &str) -> (u8, usize) {
             b'\'' => b'\'',
             b'0' => b'\0',
             _ => {
-                match ::std::num::from_str_radix::<u64>(&lit[2..4], 16) {
+                match ::std::num::from_str_radix::<u64>(&lit[2..4], 16).ok() {
                     Some(c) =>
                         if c > 0xFF {
                             panic!(err(2))
@@ -732,7 +732,7 @@ pub fn integer_lit(s: &str, suffix: Option<&str>, sd: &SpanHandler, sp: Span) ->
     debug!("integer_lit: the type is {:?}, base {:?}, the new string is {:?}, the original \
            string was {:?}, the original suffix was {:?}", ty, base, s, orig, suffix);
 
-    let res: u64 = match ::std::num::from_str_radix(s, base) {
+    let res: u64 = match ::std::num::from_str_radix(s, base).ok() {
         Some(r) => r,
         None => { sd.span_err(sp, "int literal is too large"); 0 }
     };