doc/langref.html.in                         |  11 +++
 lib/std/special/compiler_rt/floatundisf.zig |  38 ++++-----
 src/parse_f128.c                            |  79 ++++++++++++++----
 src/tokenizer.cpp                           | 137 +++++++++++++++++++-------------
 test/compile_errors.zig                     |  96 ++++++++++++++++++++++
 test/stage1/behavior/math.zig               |  28 +++++++
 6 files changed, 297 insertions(+), 92 deletions(-)