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) Coverage Total Hit
Test: PARI/GP v2.19.0 lcov report (development 31057-89c4d54ba6) Lines: 76.5 % 1488 1139
Test Date: 2026-07-25 17:02:42 Functions: 81.4 % 161 131
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function 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
getwalltime 0
listinit 0
msgtimer 0
name_numerr 0
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_sighandler 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
timetoi 0
walltimer_get 0
exportall 6
unexportall 6
getstack 7
pari_version 7
icopy_avma_canon 12
new_chunk_resize 18
copy_bin_canon 24
export_del 24
obj_reinit 42
export_add 59
pari_daemon 76
shiftaddress_canon 76
gcopy_av0_canon 84
getheap 84
taille0_canon 84
traverseheap 84
setdebug 127
gsizebyte 175
pari_mainstack_resize 445
paristack_newrsize 452
obj_checkbuild_padicprec 539
cgetlist_avma 634
listcopy 723
pari_warn 928
gcopy_lg 994
export_get 1500
pari_add_module 1887
pari_close 1887
pari_close_export 1887
pari_close_opts 1887
getabstime 1895
init_universal_constants 1895
pari_add_defaults_module 1895
pari_init_defaults 1895
pari_init_export 1895
pari_init_functions 1895
pari_init_opts 1895
pari_init_timer 1895
paristack_alloc 1895
timer_get 1901
setalldebug 1923
gdisplay 3710
gettime 3724
pari_sig_init 3782
f_getheap 6734
list_internal_copy 7040
listassign 7040
type_dim 7308
err_recover 13090
pari_err_display 13111
gp_context_restore 13165
err_init_msg 13897
err_init 14039
os_signal 20797
pari_err2str 21887
errname 27109
numerr_name 27109
gcloneref 37888
pari_err2GEN 56850
pari_err 56862
pari_err_last 87497
walltimer_delay 108603
timer_delay 112327
parivstack_reset 122136
gp_context_save 146779
obj_insert_shallow 173838
obj_free 187789
rndus 222831
timer_aux 222831
walltimer_start 254713
timer_start 360284
getdebugvar 376653
pari_thread_alloc 376653
pari_thread_free 376653
pari_thread_get_global 376653
pari_thread_set_global 376653
pari_thread_start 376653
setdebugvar 376653
pari_close_blocks 378540
pari_thread_close 378540
pari_init_blocks 378548
pari_mainstack_use 378548
pari_thread_init 378548
pari_mainstack_free 378985
pari_mainstack_mfree 378985
pari_mainstack_alloc 378993
pari_mainstack_malloc 378993
pari_init_errcatch 379000
pari_stackcheck_init 380443
pop_entree_block 391033
pari_mainstack_mextend 501129
pari_mainstack_mreset 501129
pari_mainstack_setsize 501129
obj_checkbuild_realprec 580288
obj_checkbuild_prec 749665
fix_size 757978
obj_checkbuild 1507905
gsizeword 2214450
obj_init 2533817
obj_insert 2662254
obj_check 6216269
bl_rotright 13930893
bl_rotleft 17556687
gc_all_unsafe 27494744
clone_unlock_deep 59318623
vec_gunclone_deep 134774131
gclone 236894208
gsizeclone 236894208
newblock_t 237751761
is_in_block 242396962
clone_unlock 288315202
gc_slice_unsafe 336642382
clone_lock 347189678
blockdelete 353718303
gunclone 388065663
blockinsert 393971033
copy_bin 480634814
blockbalance 600594390
fix_height 658633602
clonesearch 694823503
cgetg_copy_avma 1083810757
gc_stack_update 1261729829
blockheight 2518455984
shiftaddress 3150762339
gunclone_deep 3279530786
gcopy_avma 3383673531
gsizeclone_i 3475909130
gcopy_av0 4092840470
taille0 4092840470
gcopy 4911739790
gc_dec 6111586240

Generated by: LCOV version 2.0-1