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 30831-19b50a36d0) Lines: 1144 1487 76.9 %
Date: 2026-04-23 09:26:12 Functions: 133 162 82.1 %
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
getwalltime 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
timetoi 0
walltimer_get 0
pari_sighandler 3
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 620
listcopy 730
gcopy_lg 742
pari_warn 942
export_get 1500
pari_add_module 1887
pari_close 1887
pari_close_export 1887
pari_close_opts 1887
getabstime 1897
init_universal_constants 1897
pari_add_defaults_module 1897
pari_init_defaults 1897
pari_init_export 1897
pari_init_functions 1897
pari_init_opts 1897
pari_init_timer 1897
paristack_alloc 1897
timer_get 1903
setalldebug 1925
gdisplay 3703
gettime 3724
pari_sig_init 3784
f_getheap 6734
list_internal_copy 7026
listassign 7026
type_dim 7308
err_recover 13069
pari_err_display 13090
gp_context_restore 13144
traverseheap_r 13552
err_init_msg 13897
err_init 14032
os_signal 20807
pari_err2str 21873
errname 27109
numerr_name 27109
gcloneref 37888
pari_err2GEN 56829
pari_err 56841
pari_err_last 87497
walltimer_delay 108169
timer_delay 111893
parivstack_reset 121681
gp_context_save 146212
obj_insert_shallow 173572
obj_free 187740
rndus 221965
timer_aux 221965
walltimer_start 253712
timer_start 358520
pari_close_blocks 363037
pari_thread_set_global 369964
setdebugvar 369975
pari_thread_start 370023
getdebugvar 370054
pari_thread_alloc 370054
pari_thread_free 370054
pari_thread_get_global 370054
pari_thread_close 370166
pari_init_blocks 371905
pari_thread_init 371908
pari_mainstack_use 371927
pari_init_errcatch 372355
pari_mainstack_free 372386
pari_mainstack_mfree 372386
pari_mainstack_alloc 372396
pari_mainstack_malloc 372396
pari_stackcheck_init 373802
pop_entree_block 390102
obj_checkbuild_realprec 399100
pari_mainstack_mextend 494077
pari_mainstack_mreset 494077
pari_mainstack_setsize 494077
obj_checkbuild_prec 568477
fix_size 744782
obj_checkbuild 1507411
gsizeword 2214450
obj_init 2533396
obj_insert 2661627
obj_check 6033691
gc_all_unsafe 27382044
clone_unlock_deep 59318328
bl_rotright 60842123
bl_rotleft 66416987
vec_gunclone_deep 134762677
is_in_block 234020039
gsizeclone 237445126
gclone 237445312
newblock 238288660
clone_unlock 311715963
gc_slice_unsafe 330835571
clone_lock 370989450
gunclone 388585014
copy_bin 472781703
clonesearch 741713316
cgetg_copy_avma 1062640338
gc_stack_update 1237039951
blockdelete 1575697074
blockinsert 1728715222
blockbalance 2850000967
fix_height 3082137697
shiftaddress 3099305798
gunclone_deep 3279435819
gcopy_avma 3382974882
gsizeclone_i 3476467048
gcopy_av0 4036390648
taille0 4036748854
gcopy 4888192674
gc_dec 6014216910
blockheight 11864120408

Generated by: LCOV version 1.16