Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - language - init.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30657-d14c2a9e4e) Lines: 1143 1487 76.9 %
Date: 2026-01-29 09:23:20 Functions: 135 162 83.3 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
bl_rotleft 66019046
bl_rotright 60372022
blockbalance 2855468493
blockdelete 1578748608
blockheight 11883087931
blockinsert 1730975710
cgetg_copy_avma 1052778499
cgetlist_avma 620
chk_gc_upto 0
clone_lock 387016929
clone_unlock 327712289
clone_unlock_deep 59317453
clonesearch 773635024
copy_bin 495915711
copy_bin_canon 16
dbg_fill_stack 0
dbg_gc_upto 0
dbg_stack 0
debug_stack 0
dflt_err_recover 0
dflt_pari_quit 0
dflt_sigint_fun 0
dochk_gc_upto 0
err_init 13844
err_init_msg 13704
err_recover 13049
errname 27109
export_add 59
export_del 24
export_get 1499
exportall 6
f_getheap 6664
fix_height 3086151206
fix_size 747248
gc_all_unsafe 27365712
gc_dec 6030973427
gc_slice_unsafe 327231755
gc_stack_update 1236850406
gclone 237255853
gclone_refc 0
gcloneref 37888
gcopy 4793304769
gcopy_av0 4025538895
gcopy_av0_canon 32
gcopy_avma 3343069097
gcopy_lg 742
gdisplay 3703
gerepile 0
getabstime 1912
getdebugvar 371284
getheap 84
getstack 7
gettime 3718
getwalltime 8
gp_context_restore 13124
gp_context_save 144964
gsizebyte 175
gsizeclone 237255694
gsizeclone_i 3435776512
gsizeword 2214450
gunclone 388310553
gunclone_deep 3278604304
icopy_avma_canon 12
init_universal_constants 1900
is_in_block 233959879
list_internal_copy 7019
listassign 7019
listcopy 730
listinit 0
msgtimer 0
name_numerr 0
new_chunk_resize 14
newblock 238100151
numerr_name 27109
obj_check 6033198
obj_checkbuild 1506923
obj_checkbuild_padicprec 539
obj_checkbuild_prec 568477
obj_checkbuild_realprec 399100
obj_free 187243
obj_init 2532732
obj_insert 2661138
obj_insert_shallow 173523
obj_reinit 42
os_signal 20840
pari_add_defaults_module 1900
pari_add_module 1890
pari_close 1890
pari_close_blocks 361811
pari_close_export 1890
pari_close_opts 1890
pari_daemon 76
pari_err 56814
pari_err2GEN 56802
pari_err2str 21848
pari_err_display 13070
pari_err_last 87483
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_init_blocks 373143
pari_init_defaults 1900
pari_init_errcatch 373566
pari_init_export 1900
pari_init_functions 1900
pari_init_opts 1900
pari_init_timer 1900
pari_mainstack_alloc 373629
pari_mainstack_free 373619
pari_mainstack_malloc 373629
pari_mainstack_mextend 494228
pari_mainstack_mfree 373619
pari_mainstack_mreset 494228
pari_mainstack_resize 445
pari_mainstack_setsize 494228
pari_mainstack_use 373141
pari_sig_init 3790
pari_sighandler 3
pari_sigint 0
pari_stackcheck_init 375017
pari_thread_alloc 371284
pari_thread_close 371284
pari_thread_free 371284
pari_thread_get_global 371284
pari_thread_init 373126
pari_thread_set_global 371156
pari_thread_start 371245
pari_thread_valloc 0
pari_version 7
pari_warn 774
paristack_alloc 1900
paristack_newrsize 452
paristack_resize 0
paristack_setsize 0
parivstack_reset 120599
parivstack_resize 0
pop_entree_block 389788
rndus 219858
setalldebug 1928
setdebug 127
setdebugvar 371166
shiftaddress 3119838497
shiftaddress_canon 24
taille0 4025758948
taille0_canon 32
timer 0
timer2 0
timer_aux 219850
timer_delay 110825
timer_get 1918
timer_printf 0
timer_start 356166
timer_vprintf 0
timetoi 8
traverseheap 84
traverseheap_r 13412
type_dim 7308
unexportall 6
vec_gunclone_deep 134395001
walltimer_delay 107107
walltimer_get 0
walltimer_start 251410

Generated by: LCOV version 1.16