zwimer

#include <iostream>

void f(bool b) {
    if (b == true)  { std::cout << "true\n";  }
    if (b == false) { std::cout << "false\n"; }
}

int main() {
    char c = 2;
    bool * b = (bool*) &c;

zwimer

Random useful bash stuff:
1. . ^foo^bar - bash !! but replaces the first occurrence of foo with bar
2. !!:/gs/foo/bar - bash !! but replaces all occurrences of foo with bar
3. cd -4 = cd; cd; cd; cd. cd -- = cd; cd. cd - = cd; pwd (or use pushd and popd)
4. diff <(sort a) <(sort b) The output of sort a is pushed into a pipe which pretends to be a file for diff. This is process substitution
5. < foo grep bar | sort  is the same as cat foo | grep bar | sort
6. $'\167' is the same as w - bash interprets octal! Also works with hex!
7. If you do echo !!:4 will echo the 4th argument of the last command. !$ is the last arg and !^ is the fist, !* is all.
8. !g will autocomplete to the last command run that began with g
9. set -o vi - enable vim bindings for bash

zwimer

#!/bin/bash -eux

# Where to truncate from
export HASH=my-hash

# Truncate history
git checkout --orphan temp "${HASH}"
git commit -m "Truncate History"
git rebase --onto temp "${HASH}" master
git branch -D temp

zwimer

diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt
index 0397dec64d..f9cce044fe 100644
--- a/Documentation/githooks.txt
+++ b/Documentation/githooks.txt
@@ -758,6 +758,12 @@ and "0" meaning they were not.
 Only one parameter should be set to "1" when the hook runs.  The hook
 running passing "1", "1" should not be possible.
 
+pre-blame
+~~~~~~~~~~~~~~