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-rw-r--r--lib/system/sysio.nim14
1 files changed, 8 insertions, 6 deletions
diff --git a/lib/system/sysio.nim b/lib/system/sysio.nim
index 115b67c18..fa1bdbb4e 100644
--- a/lib/system/sysio.nim
+++ b/lib/system/sysio.nim
@@ -171,21 +171,23 @@ proc readLine(f: File): TaintedString =
 
 proc write(f: File, i: int) =
   when sizeof(int) == 8:
-    c_fprintf(f, "%lld", i)
+    if c_fprintf(f, "%lld", i) < 0: checkErr(f)
   else:
-    c_fprintf(f, "%ld", i)
+    if c_fprintf(f, "%ld", i) < 0: checkErr(f)
 
 proc write(f: File, i: BiggestInt) =
   when sizeof(BiggestInt) == 8:
-    c_fprintf(f, "%lld", i)
+    if c_fprintf(f, "%lld", i) < 0: checkErr(f)
   else:
-    c_fprintf(f, "%ld", i)
+    if c_fprintf(f, "%ld", i) < 0: checkErr(f)
 
 proc write(f: File, b: bool) =
   if b: write(f, "true")
   else: write(f, "false")
-proc write(f: File, r: float32) = c_fprintf(f, "%g", r)
-proc write(f: File, r: BiggestFloat) = c_fprintf(f, "%g", r)
+proc write(f: File, r: float32) =
+  if c_fprintf(f, "%g", r) < 0: checkErr(f)
+proc write(f: File, r: BiggestFloat) =
+  if c_fprintf(f, "%g", r) < 0: checkErr(f)
 
 proc write(f: File, c: char) = discard c_putc(ord(c), f)
 proc write(f: File, a: varargs[string, `$`]) =