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-rw-r--r--passes/cmds/write_file.cc9
1 files changed, 3 insertions, 6 deletions
diff --git a/passes/cmds/write_file.cc b/passes/cmds/write_file.cc
index 9bf1a75a8..25ec4acc2 100644
--- a/passes/cmds/write_file.cc
+++ b/passes/cmds/write_file.cc
@@ -68,13 +68,10 @@ struct WriteFileFrontend : public Frontend {
FILE *of = fopen(output_filename.c_str(), append_mode ? "a" : "w");
char buffer[64 * 1024];
+ int bytes;
- while (1) {
- f->read(buffer, sizeof(buffer));
- if (f->gcount() <= 0)
- break;
- fwrite(buffer, f->gcount(), 1, of);
- }
+ while (0 < (bytes = readsome(*f, buffer, sizeof(buffer))))
+ fwrite(buffer, bytes, 1, of);
fclose(of);
}