nopf

nopf (Numbers, Operators, Functions) is an interactive, command-line expression evaluator/calculator.

Features:

• Performs separate integer and floating-point math for every operation.
• Interactive mode with colored output.
• Auto-completion on *nix platforms that support libreadline in interactive mode.
• Support for user-defined constants.
• Support for input and output in hex, oct, decimal and binary.
• Bit shifts, alignment and other bitwise operations.
• Pretty printing of some x86/amd64 registers with description of bits.
• Unit of measure conversions for common units like pages to bytes, gigabits to bits etc.
• Basic statistics like sum, avg, lcd, gcd.

Examples:

> 1 + 2 * (10 - 4)
Bool:         true (N)
Dec :           13 (U32)                       13 (U64)  13 (N)
Hex :   0x0000000d (U32)       0x000000000000000d (U64)  0xd (N)
Oct :    000000015 (U32)        00000000000000015 (U64)  015 (N)
Bin : 1101 (4)

> avg(10, 12, 14, 0x18 + 0x120)
Bool:         true (N)
Dec :           87 (U32)                       87 (U64)  87 (N)
Hex :   0x00000057 (U32)       0x0000000000000057 (U64)  0x57 (N)
Oct :    000000127 (U32)        00000000000000127 (U64)  0127 (N)
Bin : 101 0111 (7)

> myvar = 60
Stored variable: 'myvar'

> min2sec(myvar)
Bool:         true (N)
Dec :         3600 (U32)                     3600 (U64)  3600 (N)
Hex :   0x00000e10 (U32)       0x0000000000000e10 (U64)  0xe10 (N)
Oct :    000007020 (U32)        00000000000007020 (U64)  07020 (N)
Bin : 1110 0001 0000 (12)

> efer 0xd01
efer:
  0000 0000 0000 0000 0000 1101 0000 0001
                       │││ ││ │         │
                       │││ ││ │         └─── SCE ( 0) *
                       │││ ││ └───────────── LME ( 8) *
                       │││ │└─────────────── LMA (10) *
                       │││ └──────────────── NXE (11) *
                       ││└────────────────── SVME (12)
                       │└─────────────────── LMSLE (13)
                       └──────────────────── FFXSR (14)

Downloads

Download the Windows binary from here.

For all other platforms, you will need to compile the sources.

Compiling on GNU/Linux, Solaris, MacOS

Execute make on the directory with Makefile.

Dependencies

• libreadline (e.g., on Debian/Ubuntu apt-based distros sudo apt-get install libreadline-dev)

Build configurations

• Debug and release builds can be built by adding BUILD_TYPE=debug or BUILD_TYPE=release to make on the command line.

Compiling on Windows

Setup the required environment by executing (for 32-bit host, use vcvars32.bat in the command below):
%comspec% /k "<path-to-Visual-Studio>\VC\Auxiliary\Build\vcvars64.bat"

Once environment is setup, create a release build by executing:
nmake.exe /F Makefile.vc all

Note: The all switch in the above commands does a full-rebuild everytime (clean + build). For incremental builds, you may skip all.

Dependencies

• Appropriate Windows SDK
• Build Tools for Visual Studio 2019, see Building on command-line and NMake reference

Build configurations

• Debug and release builds can be built by adding BUILD_TYPE=debug or BUILD_TYPE=release to nmake.exe on the command line.

More information

Visit the nopf's official website at https://ramshankar.org/software/nopf/