| grouping | page | description |
| M_help | help_command | uses a specially formatted text array to provide a HELP interface (LICENSE:PD) |
| M_journal::INTRO | M_journal | write program messages to stdout and/or a log file (LICENSE:PD) |
| M_journal | journal | provides public message routine, no paging or graphic mode change (LICENSE:PD) |
| M_msg | fmt | convert any intrinsic to a string using specified format (LICENSE:PD) |
| M_msg | stderr | write message to stderr (LICENSE:PD) |
| M_msg | str | converts up to twenty standard scalar type values to a string (LICENSE:PD) |
| M_msg | wrt | write multiple scalar values to any number of files (LICENSE:PD) |
| M_verify::INTRO | M_verify | a collection of Fortran routines for supporting code development by providing error processing, debugging procedures and unit testing. (LICENSE:PD) |
| M_verify | accdig | compare two real numbers only up to a specified number of digits (LICENSE:PD) |
| M_verify | almost | return true or false if two numbers agree up to specified number of digits (LICENSE:PD) |
| M_verify | assert | print filename, linenumber, and message to stderr and stop program (LICENSE:PD) |
| M_verify | dp_accdig | compare two numbers only up to a specified number of digits (LICENSE:PD) |
| M_verify | fstop | call stop with both a number and a message (LICENSE:PD) |
| M_verify | in_margin | check if two reals are approximately equal using a relative margin |
| M_verify | pdec | write out string with ASCII decimal equivalent vertically under it (LICENSE:PD) |
| M_verify | significant | round val to specified number of significant digits |
| M_verify | stderr | write message to stderr (LICENSE:PD) |
| M_verify | unit_check | if logical expression is false, call command "goodbad NAME bad" and stop program by default (LICENSE:PD) |
| M_verify | unit_check_bad | call command "goodbad NAME bad" and stop program (LICENSE:PD) |
| M_verify | unit_check_done | call command "goodbad NAME good" or "goodbad NAME bad" depending on whether failures were found (LICENSE:PD) |
| M_verify | unit_check_good | call command "goodbad NAME good" (LICENSE:PD) |
| M_verify | unit_check_msg | converts up to nine standard scalar values to a message for unit testing (LICENSE:PD) |
| M_verify | unit_check_start | call command "goodbad NAME start" and optionally set options (LICENSE:PD) |
| M_verify | unit_check_stop | call command "goodbad NAME good" or goodbad NAME bad" depending on whether failures were found (LICENSE:PD) |