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 30674-be81ecfdd4) Lines: 1144 1487 76.9 %
Date: 2026-02-13 09:23:38 Functions: 135 162 83.3 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
chk_gc_upto 0
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
gclone_refc 0
gerepile 0
listinit 0
msgtimer 0
name_numerr 0
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_sigint 0
pari_thread_valloc 0
paristack_resize 0
paristack_setsize 0
parivstack_resize 0
timer 0
timer2 0
timer_printf 0
timer_vprintf 0
walltimer_get 0
pari_sighandler 1
exportall 6
unexportall 6
getstack 7
pari_version 7
getwalltime 8
timetoi 8
icopy_avma_canon 12
new_chunk_resize 14
copy_bin_canon 16
export_del 24
shiftaddress_canon 24
gcopy_av0_canon 32
taille0_canon 32
obj_reinit 42
export_add 59
pari_daemon 76
getheap 84
traverseheap 84
setdebug 127
gsizebyte 175
pari_mainstack_resize 445
paristack_newrsize 452
obj_checkbuild_padicprec 539
cgetlist_avma 620
listcopy 730
gcopy_lg 742
pari_warn 774
export_get 1499
pari_add_module 1890
pari_close 1890
pari_close_export 1890
pari_close_opts 1890
init_universal_constants 1900
pari_add_defaults_module 1900
pari_init_defaults 1900
pari_init_export 1900
pari_init_functions 1900
pari_init_opts 1900
pari_init_timer 1900
paristack_alloc 1900
getabstime 1912
timer_get 1918
setalldebug 1928
gdisplay 3703
gettime 3718
pari_sig_init 3790
f_getheap 6664
list_internal_copy 7019
listassign 7019
type_dim 7308
err_recover 13049
pari_err_display 13070
gp_context_restore 13124
traverseheap_r 13412
err_init_msg 13704
err_init 13844
os_signal 20840
pari_err2str 21848
errname 27109
numerr_name 27109
gcloneref 37888
pari_err2GEN 56802
pari_err 56814
pari_err_last 87483
walltimer_delay 107191
timer_delay 110909
parivstack_reset 120683
gp_context_save 145076
obj_insert_shallow 173523
obj_free 187243
timer_aux 220018
rndus 220026
walltimer_start 251606
timer_start 356379
pari_close_blocks 361724
setdebugvar 371203
pari_thread_set_global 371206
pari_thread_close 371346
pari_thread_start 371363
getdebugvar 371417
pari_thread_alloc 371417
pari_thread_free 371417
pari_thread_get_global 371417
pari_thread_init 373222
pari_init_blocks 373227
pari_mainstack_use 373244
pari_init_errcatch 373651
pari_mainstack_free 373752
pari_mainstack_mfree 373752
pari_mainstack_alloc 373762
pari_mainstack_malloc 373762
pari_stackcheck_init 375107
pop_entree_block 389956
obj_checkbuild_realprec 399100
pari_mainstack_mextend 494445
pari_mainstack_mreset 494445
pari_mainstack_setsize 494445
obj_checkbuild_prec 568477
fix_size 747514
obj_checkbuild 1506920
gsizeword 2214450
obj_init 2532842
obj_insert 2661136
obj_check 6033198
gc_all_unsafe 27366933
clone_unlock_deep 59317453
bl_rotright 60378842
bl_rotleft 66018789
vec_gunclone_deep 134575599
is_in_block 234166408
gsizeclone 237257300
gclone 237257409
newblock 238101590
gc_slice_unsafe 327271775
clone_unlock 327897222
clone_lock 387134615
gunclone 388311951
copy_bin 495882284
clonesearch 773967408
cgetg_copy_avma 1053118624
gc_stack_update 1236842361
blockdelete 1578763585
blockinsert 1730982828
blockbalance 2855467291
fix_height 3086164238
shiftaddress 3120571134
gunclone_deep 3278923883
gcopy_avma 3343175353
gsizeclone_i 3436242718
gcopy_av0 4026421766
taille0 4026650728
gcopy 4794266257
gc_dec 6030587428
blockheight 11883104448

Generated by: LCOV version 1.16