# format_add_modifier

- **Language:** C
- **Kind:** function
- **Source:** https://github.com/tmux/tmux/blob/3b929f332aafa7f1080eacc31feb11ffbb1d1841/format.c#L3487
- **Page:** https://libtmux.org/en/tmux/3.2a/reference/c-function-format-c-format_add_modifier/

```c
static void format_add_modifier(struct format_modifier **list, u_int *count, const char *c, size_t n, char **argv, int argc)
```

## Parameters

- `list` (`struct format_modifier **`)
- `count` (`u_int *`)
- `c` (`const char *`)
- `n` (`size_t`)
- `argv` (`char **`)
- `argc` (`int`)

## Called by

- [`format_build_modifiers`](/en/tmux/3.2a/reference/c-function-format-c-format_build_modifiers/) (function) [Call site](https://github.com/tmux/tmux/blob/3b929f332aafa7f1080eacc31feb11ffbb1d1841/format.c#L3545)

## Calls

- [`xreallocarray`](/en/tmux/3.2a/reference/c-function-xreallocarray/) (function) [Call site](https://github.com/tmux/tmux/blob/3b929f332aafa7f1080eacc31feb11ffbb1d1841/format.c#L3492)

## Referenced declarations

- [`format_modifier.argc`](/en/tmux/3.2a/reference/c-struct-format_modifier-argc/) (attribute)
- [`format_modifier.argv`](/en/tmux/3.2a/reference/c-struct-format_modifier-argv/) (attribute)
- [`format_modifier`](/en/tmux/3.2a/reference/c-struct-format_modifier/) (struct)
- [`format_modifier.modifier`](/en/tmux/3.2a/reference/c-struct-format_modifier-modifier/) (attribute)
- [`format_modifier.size`](/en/tmux/3.2a/reference/c-struct-format_modifier-size/) (attribute)