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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - basemath - rootpol.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30482-15ec328664) Lines: 1467 1530 95.9 % Date: 2025-09-07 09:24:11 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296374
RgX_gtofp_bit	7031306
RgX_normalize1	35887
X2XP1	5990048
ZX_Uspensky	1313816
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15274
ZX_graeffe	5383
ZX_realroots_irred	48637
ZX_rescale2prim	2233641
ZX_sturm	6395
ZX_sturm_i	123165
ZX_sturm_irred	116770
ZX_sturmpart	1128184
ZX_to_ZiX	16455495
ZiX_sqr	99044199
_gen_nored	11196739
_gen_one	14469553
_gen_zero	326148
_intervalcmp	0
_mp_add	24658168
_mp_cmul	34756894
_mp_mul	4373676
_mp_sqr	6297285
_mp_sub	0
_sqrtnr	22709
a_posteriori_errors	537117
abs_update	8005010
abs_update_r	778664
all_roots	536067
append_clone	1613941
bkeval_single_power	5234785
check_ab	1178811
checkbound	2354750
checkvalidpol	267046
clean_roots	536114
cleanroots	231749
cmp_complex_appr	2238432
conformal_basecase	1403818
conformal_mapping	467899
conformal_pol	1403935
dblexp	6548827
dbllog2	302680429
dft	502342
dual_modulus	1012414
eval_rel_pol	13137917
fft	14159448
fft2	7462
findpower	40958125
fix_roots	537115
fix_roots1	398400
fujiwara_bound	2271592
fujiwara_bound_real	1406823
graeffe	49507761
homothetie	1610033
homothetie2n	9957475
homothetie_gauss	36501769
ind_maxlog2	902613
initdft	996294
isexactpol	239739
isexactscalar	931700
isreal	961854
isvalidcoeff	1230095
logmax_modulus	4450735
logmin_modulus	1614751
logmodulus	606735
logpre_modulus	606735
logradius	493948
lower_bound	40957385
mydbllog2i	226440563
mydbllog2r	56754053
mydbllogr	9546160
mygprec	63754377
mygprec_absolute	4339178
mygprec_special	537119
mygprecrc	215180396
mygprecrc_special	2178432
myshiftic	135825274
myshiftrc	35506679
newton_polygon	5507064
optimize_split	493953
parameters	493951
pol_to_gaussint	17588699
polgraeffe	14
polmod_to_embed	84
polrootsbound	27300
polrootsbound_i	27293
polsolve	166675
quicktofp	6978625
realroots	50627
refine_F	502335
refine_H	2460295
root_error	1912273
roots	8018
roots_aux	239767
roots_com	239739
rootsdeg0	42
scalepol	4289164
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494275
split_0_1	468225
split_0_2	468225
split_1	467902
split_2	493951
split_complete	1525657
split_fromU	493953
split_pols	166675
splitcauchy	166682
splitpoleval	5234055
tocomplex	1213851
update_radius	493951
usp	1125955

Generated by: LCOV version 1.16